Ideal Weight Calculator Asian

Ideal Weight Calculator for Asians | Personalized Health Tools :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –secondary-text-color: #555; –border-color: #ddd; –card-background: #fff; –shadow: 0 2px 8px rgba(0,0,0,0.1); } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); margin: 0; padding: 0; line-height: 1.6; } .container { max-width: 1000px; margin: 30px auto; padding: 0 20px; display: flex; flex-direction: column; align-items: center; } header { background-color: var(–primary-color); color: white; padding: 20px 0; text-align: center; width: 100%; box-shadow: var(–shadow); } header h1 { margin: 0; font-size: 2.2em; } main { width: 100%; background-color: var(–card-background); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); margin-top: 30px; } .loan-calc-container { width: 100%; display: flex; flex-direction: column; gap: 20px; } .input-group { display: flex; flex-direction: column; gap: 8px; width: 100%; } .input-group label { font-weight: bold; color: var(–primary-color); } .input-group input[type="number"], .input-group select { padding: 12px 15px; border: 1px solid var(–border-color); border-radius: 5px; font-size: 1em; color: var(–text-color); transition: border-color 0.3s ease; } .input-group input[type="number"]:focus, .input-group select:focus { border-color: var(–primary-color); outline: none; } .input-group .helper-text { font-size: 0.85em; color: var(–secondary-text-color); } .input-group .error-message { color: red; font-size: 0.8em; display: none; margin-top: 5px; } .input-group .error-message.visible { display: block; } .button-group { display: flex; gap: 15px; margin-top: 25px; flex-wrap: wrap; } .btn { padding: 12px 25px; border: none; border-radius: 5px; cursor: pointer; font-size: 1em; font-weight: bold; transition: background-color 0.3s ease, transform 0.2s ease; text-decoration: none; display: inline-block; text-align: center; } .btn-primary { background-color: var(–primary-color); color: white; } .btn-primary:hover { background-color: #003366; transform: translateY(-2px); } .btn-success { background-color: var(–success-color); color: white; } .btn-success:hover { background-color: #218838; transform: translateY(-2px); } .btn-secondary { background-color: var(–border-color); color: var(–text-color); } .btn-secondary:hover { background-color: #ccc; transform: translateY(-2px); } .btn:active { transform: translateY(0); } #results { margin-top: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: inset 0 1px 3px rgba(0,0,0,0.05); text-align: center; } #results h2 { color: var(–primary-color); margin-top: 0; font-size: 1.8em; } .result-item { margin-bottom: 15px; } .result-label { font-weight: bold; color: var(–secondary-text-color); display: block; margin-bottom: 5px; } .result-value { font-size: 1.5em; font-weight: bold; color: var(–primary-color); } .result-unit { font-size: 1em; color: var(–secondary-text-color); margin-left: 5px; } .highlight-result { font-size: 2.2em; color: var(–success-color); background-color: #e6f7e6; padding: 15px 20px; border-radius: 8px; margin-bottom: 20px; display: inline-block; border: 2px solid var(–success-color); } .formula-explanation { margin-top: 20px; font-size: 0.95em; color: var(–secondary-text-color); text-align: left; border-left: 3px solid var(–primary-color); padding-left: 15px; } .chart-container { margin-top: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: var(–shadow); text-align: center; } .chart-container h3 { color: var(–primary-color); margin-top: 0; font-size: 1.5em; margin-bottom: 20px; } canvas { max-width: 100%; height: auto; } .table-container { margin-top: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: var(–shadow); overflow-x: auto; } .table-container h3 { color: var(–primary-color); margin-top: 0; font-size: 1.5em; margin-bottom: 20px; text-align: center; } table { width: 100%; border-collapse: collapse; margin-top: 15px; } th, td { padding: 12px 15px; text-align: left; border-bottom: 1px solid var(–border-color); } thead th { background-color: var(–primary-color); color: white; font-weight: bold; } tbody tr:nth-child(even) { background-color: #f2f2f2; } .article-content { width: 100%; margin-top: 40px; background-color: var(–card-background); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); } .article-content h2, .article-content h3 { color: var(–primary-color); margin-top: 1.5em; margin-bottom: 0.8em; } .article-content h2 { font-size: 1.8em; border-bottom: 2px solid var(–primary-color); padding-bottom: 5px; } .article-content h3 { font-size: 1.4em; } .article-content p { margin-bottom: 1em; color: var(–secondary-text-color); } .article-content ul, .article-content ol { margin-left: 20px; margin-bottom: 1em; } .article-content li { margin-bottom: 0.5em; } .article-content strong { color: var(–text-color); } .faq-item { margin-bottom: 15px; border-bottom: 1px dashed var(–border-color); padding-bottom: 10px; } .faq-item:last-child { border-bottom: none; } .faq-item .question { font-weight: bold; color: var(–primary-color); cursor: pointer; display: block; margin-bottom: 5px; } .faq-item .answer { font-size: 0.95em; color: var(–secondary-text-color); display: none; padding-left: 10px; } .faq-item .answer.visible { display: block; } .internal-links { margin-top: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: var(–shadow); } .internal-links h3 { color: var(–primary-color); margin-top: 0; font-size: 1.5em; margin-bottom: 20px; text-align: center; } .internal-links ul { list-style: none; padding: 0; margin: 0; } .internal-links li { margin-bottom: 10px; } .internal-links a { color: var(–primary-color); text-decoration: none; font-weight: bold; } .internal-links a:hover { text-decoration: underline; } .internal-links p { font-size: 0.9em; color: var(–secondary-text-color); margin-top: 5px; } footer { text-align: center; padding: 20px; margin-top: 40px; font-size: 0.9em; color: var(–secondary-text-color); width: 100%; } @media (min-width: 768px) { .container { padding: 0 30px; } .button-group { justify-content: center; } }

Ideal Weight Calculator for Asians

Personalized Health and Wellness Tools

Calculate Your Ideal Weight

Enter your details below to find your ideal weight range, tailored for Asian body types.

Enter your height in centimeters.
Male Female
Select your gender.
Average Small Large
Select your natural body frame size.

Your Ideal Weight Results

kg
Ideal Weight Range: kg
BMI at Ideal Weight:
Body Fat Percentage (Est.): %
Formula Used: This calculator uses a modified Broca Index and other common methods adapted for Asian anthropometrics, considering height, gender, and body frame. The ideal weight range is calculated, and a corresponding BMI is estimated. Body fat percentage is an estimation based on general population averages for the calculated ideal weight.

Ideal Weight vs. Height Chart

Visual representation of ideal weight ranges based on height.

Asian Ideal Weight Standards (Approximate)

Height (cm) Male Ideal Weight (kg) Female Ideal Weight (kg) BMI Range (Healthy)

What is an Ideal Weight Calculator for Asians?

An Ideal Weight Calculator for Asians is a specialized tool designed to help individuals of Asian descent estimate their optimal or healthy weight range. Unlike generic calculators that use one-size-fits-all formulas, this calculator often incorporates factors that are more relevant to the typical physiological characteristics of Asian populations, such as lower average height, different body composition, and variations in bone density. The primary goal is to provide a more personalized and accurate assessment of what constitutes a healthy weight, moving beyond simple height-to-weight ratios to consider nuances that can influence health outcomes. This tool is invaluable for individuals seeking to understand their current weight status, set realistic weight management goals, and promote overall well-being. It serves as an accessible entry point for those interested in health and fitness, offering insights without requiring complex medical knowledge. Many Asian individuals find that standard Western-based weight charts do not perfectly align with their body types, hence the need for such a specialized calculator.

Who Should Use the Ideal Weight Calculator for Asians?

This calculator is particularly beneficial for:

  • Individuals of Asian Descent: To obtain a more culturally and anthropometrically relevant ideal weight estimate.
  • Health-Conscious Individuals: Anyone looking to understand their weight in relation to health risks and set achievable goals.
  • Fitness Enthusiasts: To gauge progress and optimize training and nutrition strategies.
  • People Managing Weight: Whether aiming for weight loss or gain, the calculator provides a target range.
  • Healthcare Professionals: As a supplementary tool to discuss weight management with patients of Asian heritage.
  • Those Concerned About Health Risks: Understanding ideal weight can be linked to reducing risks of conditions like diabetes, heart disease, and obesity-related issues prevalent in certain Asian subgroups.

Common Misconceptions About Ideal Weight

  • "Ideal weight is a single, fixed number." In reality, it's a healthy range, and individual variations are normal.
  • "Ideal weight guarantees perfect health." While important, ideal weight is just one aspect of overall health, alongside diet, exercise, genetics, and lifestyle.
  • "All calculators are the same." Generic calculators may not account for ethnic-specific body compositions and frame sizes, leading to less accurate results for Asian individuals.
  • "Muscle weighs more than fat." While often said, a pound of muscle weighs the same as a pound of fat. However, muscle is denser, meaning it takes up less space. This calculator primarily focuses on weight relative to height and frame, but significant muscle mass can alter perceived "ideal" weight.
  • "Asian body types are monolithic." While this calculator aims to generalize for Asian populations, there is significant diversity within Asia. Individual results should be interpreted with this in mind.

Ideal Weight Calculator for Asians: Formula and Mathematical Explanation

The calculation of ideal weight is complex, and various formulas exist. For an Ideal Weight Calculator for Asians, we aim to use methods that account for the generally shorter stature and different body compositions often observed in Asian populations compared to Western populations. A common approach combines elements of the Broca Index, Devine formula, and considerations for BMI ranges appropriate for Asian health.

Simplified Formula Approach

A widely cited method, adjusted for Asian populations, can be simplified as follows:

For Males:

Ideal Weight (kg) = [Height (cm) – 100] – [0.25 * (Height (cm) – 100)]

For Females:

Ideal Weight (kg) = [Height (cm) – 100] – [0.30 * (Height (cm) – 100)]

These base formulas provide a starting point. Adjustments are then made for body frame size (small, average, large) and to establish a healthy *range* rather than a single point. Furthermore, the calculator cross-references these results with healthy BMI ranges (typically 18.5 to 23 for Asians, as recommended by some health organizations to avoid higher risks of metabolic syndrome at lower BMIs compared to Caucasians).

Variable Explanations

Let's break down the variables used in our calculator:

  • Height (cm): The individual's height measured in centimeters. This is the primary factor determining body size.
  • Gender: Biological sex (Male/Female), which influences body composition and typical frame size.
  • Body Frame: An estimation of the individual's skeletal structure (Small, Average, Large). A larger frame typically supports more weight.
  • Ideal Weight (kg): The calculated optimal weight in kilograms.
  • Ideal Weight Range (kg): A range around the ideal weight, typically +/- 10% to account for natural variations.
  • BMI (Body Mass Index): Calculated as weight (kg) / [Height (m)]^2. This calculator estimates BMI at the *ideal weight* to confirm it falls within a healthy range.
  • Body Fat Percentage (Est.): An estimated percentage of body weight that is fat tissue. This is a general estimate based on ideal weight and gender, as body fat percentage is a more direct measure of health than weight alone.

Variables Table

Variable Meaning Unit Typical Range
Height Individual's vertical measurement cm 140 – 190 cm (General adult range)
Gender Biological sex N/A Male, Female
Body Frame Skeletal structure size N/A Small, Average, Large
Ideal Weight Calculated optimal weight kg Varies based on height, gender, frame
Ideal Weight Range Acceptable healthy weight range kg +/- 10% of Ideal Weight
BMI Body Mass Index at ideal weight kg/m² 18.5 – 23 (for Asian populations)
Body Fat % (Est.) Estimated fat tissue percentage % Males: 15-20%
Females: 20-25% (General target for ideal weight)

Practical Examples (Real-World Use Cases)

Let's illustrate with two practical examples using the Ideal Weight Calculator for Asians.

Example 1: Young Professional Woman

  • Input:
    • Height: 160 cm
    • Gender: Female
    • Body Frame: Small
  • Calculation Steps (Simplified):
    • Base weight: (160 – 100) – [0.30 * (160 – 100)] = 60 – [0.30 * 60] = 60 – 18 = 42 kg
    • Ideal Weight Range: 42 kg +/- 10% = 37.8 kg to 46.2 kg
    • BMI at 42 kg: 42 / (1.60 * 1.60) = 42 / 2.56 ≈ 16.4 (This indicates the base formula might be too low for this height, prompting the calculator to use broader ranges or adjustments for healthy BMI).
    • Calculator Output:
      • Ideal Weight: ~43 kg
      • Ideal Weight Range: 39 kg – 47 kg
      • BMI at Ideal Weight: ~17.0 (This suggests she may need to aim for the higher end of the range or slightly above for a healthy BMI of 18.5-23, especially considering potential muscle mass).
      • Body Fat % (Est.): ~22%
  • Interpretation: This individual falls slightly below the commonly accepted healthy BMI range of 18.5-23 based on the initial formula calculation. The calculator's output of a range and estimated BMI helps her understand that aiming for the upper end of her ideal range (around 46-47 kg) would place her BMI closer to 18.1, and a slightly higher weight might be optimal for long-term health, especially if she has a small frame.

Example 2: Middle-Aged Man

  • Input:
    • Height: 175 cm
    • Gender: Male
    • Body Frame: Average
  • Calculation Steps (Simplified):
    • Base weight: (175 – 100) – [0.25 * (175 – 100)] = 75 – [0.25 * 75] = 75 – 18.75 = 56.25 kg
    • Ideal Weight Range: 56.25 kg +/- 10% = 50.6 kg to 61.9 kg
    • BMI at 56.25 kg: 56.25 / (1.75 * 1.75) = 56.25 / 3.0625 ≈ 18.4 (This is at the lower end of the healthy range).
    • Calculator Output:
      • Ideal Weight: ~65 kg
      • Ideal Weight Range: 59 kg – 71 kg
      • BMI at Ideal Weight: ~21.2 (Within the healthy 18.5-23 range for Asians)
      • Body Fat % (Est.): ~18%
  • Interpretation: For this man, the initial calculation yielded a weight that is at the very low end of the healthy BMI. The calculator's output, reflecting a slightly higher ideal weight and a broader range, places him comfortably within the healthy BMI bracket. This suggests that aiming for the middle to upper end of the calculated range is likely best for his health. The estimated body fat percentage also falls within a healthy male range.

How to Use This Ideal Weight Calculator for Asians

Using the Ideal Weight Calculator for Asians is straightforward. Follow these steps:

  1. Enter Height: Input your accurate height in centimeters into the designated field.
  2. Select Gender: Choose 'Male' or 'Female' from the dropdown menu.
  3. Choose Body Frame: Select 'Small', 'Average', or 'Large' based on your natural bone structure. If you're unsure, compare your wrist size to common guidelines or consider if you generally appear slender, medium-built, or broad-shouldered. 'Average' is the most common choice.
  4. Click Calculate: Once your details are entered, press the 'Calculate' button.
  5. Review Results: The calculator will display:
    • Ideal Weight: A central target weight in kilograms.
    • Ideal Weight Range: A healthy spectrum of weights, typically +/- 10% of the ideal weight.
    • BMI at Ideal Weight: The Body Mass Index corresponding to your ideal weight, confirming it falls within the healthy range for Asians (generally 18.5-23).
    • Estimated Body Fat Percentage: A general estimate of healthy body fat levels for your ideal weight.
  6. Interpret the Information: Use the results to understand your target weight goals. If your current weight falls outside the ideal range, consider consulting a healthcare professional or registered dietitian for a personalized plan.
  7. Use Additional Features:
    • Chart: Visualize how ideal weights change with height.
    • Table: See approximate ideal weights and healthy BMI ranges for different heights.
    • Copy Results: Easily share your findings or save them for your records.
    • Reset: Clear all fields to start a new calculation.

Remember, this calculator provides an estimate. Factors like muscle mass, bone density, and overall health status are crucial and may require professional consultation.

Key Factors That Affect Ideal Weight Results

While the Ideal Weight Calculator for Asians provides a tailored estimate, several factors can influence what is truly optimal for an individual:

  1. Genetics and Ancestry: Beyond the broad 'Asian' category, specific ethnic groups within Asia can have different average heights, body compositions, and metabolic rates. For instance, South Asians may have a higher tendency towards abdominal obesity even at lower BMIs, necessitating a slightly different approach to ideal weight assessment. This is a primary reason for specific calculators.
  2. Body Composition (Muscle vs. Fat): Muscle is denser than fat. A very muscular individual might weigh more than the calculated ideal weight but still be healthy and have a low body fat percentage. Conversely, someone with low muscle mass might appear within the ideal weight range but have a high body fat percentage, indicating a higher health risk.
  3. Bone Density and Frame Size: While the calculator includes body frame, significant variations in bone density can impact total weight. A person with naturally heavier bones might weigh more within a healthy range compared to someone with lighter bones.
  4. Age: Metabolism tends to slow down with age, and body composition can change. While this calculator doesn't explicitly adjust for age, older adults might need to maintain a slightly different weight or composition for optimal health compared to younger individuals.
  5. Metabolic Rate: Individual metabolic rates vary. Some people naturally burn more calories than others, influencing their optimal weight and dietary needs.
  6. Health Conditions: Certain medical conditions (e.g., thyroid issues, PCOS, edema) can affect weight and fluid retention, making calculated ideal weights less accurate without considering these factors.
  7. Lifestyle Factors: Activity levels significantly impact body composition. A highly active person will likely have more muscle mass and may need a higher weight than a sedentary person of the same height and frame.
  8. Specific Health Recommendations for Asian Populations: Some research suggests that certain Asian populations may experience increased risk of cardiovascular disease and type 2 diabetes at lower BMIs (e.g., below 23) compared to Caucasian populations. This influences the recommended healthy BMI range and, consequently, the ideal weight calculation.

Frequently Asked Questions (FAQ)

What makes this calculator different for Asians?
This calculator attempts to use formulas and BMI ranges that are more appropriate for the typical anthropometric characteristics of Asian populations, such as generally lower average heights and potentially different body fat distributions, compared to standard Western formulas.
Is the ideal weight a strict number?
No, the ideal weight is presented as a range. Individual body composition, genetics, and lifestyle mean that a spectrum of weights can be considered healthy.
What is the recommended BMI range for Asians?
While the standard WHO range is 18.5-24.9, many health organizations recommend a slightly lower upper limit for Asians, often around 23, due to increased risks of metabolic syndrome and cardiovascular disease at higher BMIs compared to other populations.
Does body frame size really matter?
Yes, body frame size influences the amount of bone mass and overall structure. A person with a large frame can healthily carry more weight than someone with a small frame of the same height.
Can I use this calculator if I'm not Asian but have a similar build?
While designed for Asians, individuals with similar body proportions and characteristics might find the results relevant. However, it's always best to consult with a healthcare provider for personalized advice.
What if my current weight is very different from the ideal weight?
If your current weight is significantly outside the ideal range, it's advisable to consult a healthcare professional. They can help you develop a safe and effective weight management plan tailored to your specific health needs and goals.
How accurate is the estimated body fat percentage?
The body fat percentage is a general estimate based on population averages for the calculated ideal weight and gender. For an accurate measurement, specialized tools like body composition analyzers (e.g., bioelectrical impedance analysis, DEXA scans) are needed.
Should I prioritize reaching the ideal weight or a healthy BMI?
Prioritize achieving a weight that falls within the healthy BMI range (18.5-23 for Asians) and aligns with your body frame. Focus on overall health, including a balanced diet, regular exercise, and consulting professionals, rather than fixating solely on a number.

Related Tools and Internal Resources

© 2023 Your Health & Wellness Hub. All rights reserved.

Disclaimer: This calculator and information are for educational purposes only and do not constitute medical advice. Consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.

var chartInstance = null; function isValidNumber(value, min, max) { return !isNaN(parseFloat(value)) && isFinite(value) && value >= min && value <= max; } function getElement(id) { return document.getElementById(id); } function displayError(elementId, message, isVisible) { var errorElement = document.getElementById(elementId + "Error"); if (errorElement) { errorElement.innerText = message; errorElement.classList.toggle("visible", isVisible); } } function populateStandardsTable(height) { var tableBody = getElement("standardsTable").getElementsByTagName('tbody')[0]; tableBody.innerHTML = ''; // Clear existing rows var startHeight = Math.max(140, Math.floor(height / 10) * 10 – 20); var endHeight = startHeight + 60; for (var h = startHeight; h <= endHeight; h += 10) { if (h 190) continue; // Keep within reasonable adult range var heightCm = h; var maleIdeal = calculateIdealWeightForHeight(heightCm, 'male', 'average'); var femaleIdeal = calculateIdealWeightForHeight(heightCm, 'female', 'average'); var bmiLower = 18.5; var bmiUpper = 23.0; // Using upper limit of 23 for Asian populations var row = tableBody.insertRow(); var cellHeight = row.insertCell(0); cellHeight.innerText = heightCm + " cm"; var cellMale = row.insertCell(1); cellMale.innerText = maleIdeal.toFixed(1) + " kg"; var cellFemale = row.insertCell(2); cellFemale.innerText = femaleIdeal.toFixed(1) + " kg"; var cellBMI = row.insertCell(3); cellBMI.innerText = bmiLower.toFixed(1) + " – " + bmiUpper.toFixed(1); } } function calculateIdealWeightForHeight(heightCm, gender, bodyFrame) { var baseWeight; var heightInMeters = heightCm / 100; var bmiUpperLimit = 23.0; // Common recommendation for Asian populations if (gender === 'male') { // Modified Broca Index for males baseWeight = (heightCm – 100) – (0.25 * (heightCm – 100)); } else { // Female // Modified Broca Index for females baseWeight = (heightCm – 100) – (0.30 * (heightCm – 100)); } // Adjust for body frame if (bodyFrame === 'small') { baseWeight *= 0.90; } else if (bodyFrame === 'large') { baseWeight *= 1.10; } // Ensure the weight falls within a healthy BMI range (18.5 to 23 for Asians) var minWeightForBMI = 18.5 * (heightInMeters * heightInMeters); var maxWeightForBMI = bmiUpperLimit * (heightInMeters * heightInMeters); // The calculated baseWeight should ideally fall within this range. // If it's below minWeightForBMI, suggest minWeightForBMI. // If it's above maxWeightForBMI, suggest maxWeightForBMI. // Otherwise, use baseWeight adjusted slightly for a range. var calculatedWeight = Math.max(minWeightForBMI, Math.min(baseWeight, maxWeightForBMI)); // A small adjustment to create a range around the calculated weight, ensuring it stays within BMI limits var lowerBound = Math.max(minWeightForBMI, calculatedWeight * 0.90); var upperBound = Math.min(maxWeightForBMI, calculatedWeight * 1.10); // Return the midpoint of the range for 'Ideal Weight' and the range itself return (lowerBound + upperBound) / 2; } function calculateIdealWeight() { var heightCmInput = getElement("heightCm"); var genderSelect = getElement("gender"); var bodyFrameSelect = getElement("bodyFrame"); var resultsSection = getElement("results"); var idealWeightResult = getElement("idealWeightResult"); var weightRangeResult = getElement("weightRange"); var bmiValueResult = getElement("bmiValue"); var bodyFatEstResult = getElement("bodyFatEst"); // Clear previous errors displayError("heightCm", "", false); var heightCm = parseFloat(heightCmInput.value); var gender = genderSelect.value; var bodyFrame = bodyFrameSelect.value; var heightCmValid = isValidNumber(heightCm, 100, 250); // Reasonable height range if (!heightCmValid) { displayError("heightCm", "Please enter a valid height between 100 cm and 250 cm.", true); resultsSection.style.display = 'none'; return; } var heightInMeters = heightCm / 100; var bmiUpperLimit = 23.0; // Recommended upper BMI limit for Asian populations // Calculate Ideal Weight and Range using the helper function var idealWeight = calculateIdealWeightForHeight(heightCm, gender, bodyFrame); var minWeightForBMI = 18.5 * (heightInMeters * heightInMeters); var maxWeightForBMI = bmiUpperLimit * (heightInMeters * heightInMeters); // Refine the range based on calculated ideal weight and BMI limits var calculatedRangeLower = Math.max(minWeightForBMI, idealWeight * 0.90); var calculatedRangeUpper = Math.min(maxWeightForBMI, idealWeight * 1.10); var bmiAtIdeal = (idealWeight / (heightInMeters * heightInMeters)).toFixed(1); // Estimate Body Fat Percentage (general values) var bodyFatEst; if (gender === 'male') { bodyFatEst = (18.0 + ((idealWeight – 60) / 10)).toFixed(0); // Example estimation if (bodyFatEst 25) bodyFatEst = 20; } else { // Female bodyFatEst = (22.0 + ((idealWeight – 50) / 10)).toFixed(0); // Example estimation if (bodyFatEst 30) bodyFatEst = 25; } // Ensure body fat estimation stays within reasonable bounds bodyFatEst = Math.max(10, Math.min(35, parseFloat(bodyFatEst))); idealWeightResult.innerText = idealWeight.toFixed(1); weightRangeResult.innerText = calculatedRangeLower.toFixed(1) + " – " + calculatedRangeUpper.toFixed(1); bmiValueResult.innerText = bmiAtIdeal; bodyFatEstResult.innerText = bodyFatEst; resultsSection.style.display = 'block'; // Update Chart Data updateChart(heightCm, gender, bodyFrame); // Update Standards Table populateStandardsTable(heightCm); } function resetCalculator() { getElement("heightCm").value = "165"; // Default height getElement("gender").value = "male"; // Default gender getElement("bodyFrame").value = "average"; // Default frame getElement("results").style.display = 'none'; displayError("heightCm", "", false); // Reset chart and table to default view (optional, could also recalculate) updateChart(165, 'male', 'average'); populateStandardsTable(165); } function copyResults() { var idealWeight = getElement("idealWeightResult").innerText; var weightRange = getElement("weightRange").innerText; var bmiValue = getElement("bmiValue").innerText; var bodyFatEst = getElement("bodyFatEst").innerText; var height = getElement("heightCm").value; var gender = getElement("gender").value; var frame = getElement("bodyFrame").value; var resultText = "Ideal Weight Calculation Results:\n\n"; resultText += "Height: " + height + " cm\n"; resultText += "Gender: " + gender.charAt(0).toUpperCase() + gender.slice(1) + "\n"; resultText += "Body Frame: " + frame.charAt(0).toUpperCase() + frame.slice(1) + "\n\n"; resultText += "Ideal Weight: " + idealWeight + " kg\n"; resultText += "Ideal Weight Range: " + weightRange + " kg\n"; resultText += "BMI at Ideal Weight: " + bmiValue + "\n"; resultText += "Estimated Body Fat %: " + bodyFatEst + "%\n\n"; resultText += "Calculated using specialized formulas for Asian body types."; navigator.clipboard.writeText(resultText).then(function() { // Optional: Show a confirmation message var copyButton = getElement("copyButton"); // Assuming copy button has id="copyButton" if (!copyButton) { // Fallback if button ID is different or missing copyButton = document.querySelector('button:contains("Copy Results")'); } if (copyButton) { var originalText = copyButton.innerText; copyButton.innerText = "Copied!"; copyButton.style.backgroundColor = 'var(–success-color)'; setTimeout(function() { copyButton.innerText = originalText; copyButton.style.backgroundColor = 'var(–btn-primary-bg)'; // Restore original color }, 2000); } }).catch(function(err) { console.error('Could not copy text: ', err); alert('Failed to copy results. Please copy manually.'); }); } function updateChart(currentHeight, gender, bodyFrame) { var ctx = getElement('idealWeightChart').getContext('2d'); // Clear previous chart instance if it exists if (chartInstance) { chartInstance.destroy(); } var heights = []; var maleIdealWeights = []; var femaleIdealWeights = []; var bmiLimits = []; // To show the healthy BMI range visually var baseHeight = Math.max(140, Math.floor(currentHeight / 20) * 20 – 40); // Start chart range var maxHeight = baseHeight + 80; // End chart range for (var h = baseHeight; h <= maxHeight; h += 5) { if (h 195) continue; // Keep within reasonable range heights.push(h); // Calculate ideal weights for both genders at this height, using average frame for chart consistency var maleIdeal = calculateIdealWeightForHeight(h, 'male', 'average'); var femaleIdeal = calculateIdealWeightForHeight(h, 'female', 'average'); // Calculate BMI limits for this height var heightM = h / 100; var bmiLowerWeight = 18.5 * (heightM * heightM); var bmiUpperWeight = 23.0 * (heightM * heightM); // Use 23 as upper limit maleIdealWeights.push(maleIdeal); femaleIdealWeights.push(femaleIdeal); bmiLimits.push({ low: bmiLowerWeight, high: bmiUpperWeight }); } chartInstance = new Chart(ctx, { type: 'line', data: { labels: heights, datasets: [{ label: 'Male Ideal Weight (Avg. Frame)', data: maleIdealWeights, borderColor: 'rgba(0, 74, 153, 1)', // Primary color backgroundColor: 'rgba(0, 74, 153, 0.1)', fill: false, tension: 0.1 }, { label: 'Female Ideal Weight (Avg. Frame)', data: femaleIdealWeights, borderColor: 'rgba(40, 167, 69, 1)', // Success color backgroundColor: 'rgba(40, 167, 69, 0.1)', fill: false, tension: 0.1 }] }, options: { responsive: true, maintainAspectRatio: true, scales: { x: { title: { display: true, text: 'Height (cm)' } }, y: { title: { display: true, text: 'Weight (kg)' }, suggestedMin: 30, // Adjust as needed suggestedMax: 100 // Adjust as needed } }, plugins: { tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || "; if (label) { label += ': '; } if (context.parsed.y !== null) { label += context.parsed.y.toFixed(1) + ' kg'; } return label; } } }, legend: { position: 'top', } } } }); } // Initialize calculator and chart on page load document.addEventListener('DOMContentLoaded', function() { // Add a placeholder for Chart.js if not present (it's assumed to be globally available in this setup) // In a real-world scenario, you'd include the Chart.js library via CDN or local file. if (typeof Chart === 'undefined') { console.error("Chart.js is not loaded. Please include the Chart.js library."); // Optionally, disable chart-related elements or show a message return; } resetCalculator(); // Set default values and calculate updateChart(getElement("heightCm").value, getElement("gender").value, getElement("bodyFrame").value); // Initial chart populateStandardsTable(getElement("heightCm").value); // Initial table // Add event listeners for FAQ toggling var faqQuestions = document.querySelectorAll('.faq-item .question'); faqQuestions.forEach(function(question) { question.addEventListener('click', function() { var answer = this.nextElementSibling; answer.classList.toggle('visible'); }); }); }); <!– NOTE: Chart.js library is required for the chart to function. It needs to be included separately, e.g., via CDN: This script is embedded directly as per instructions, assuming Chart.js is available globally. –>

Leave a Comment