Amlink Weight Calculator

AMLink Weight Calculator: Determine Your Optimal Weight body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f8f9fa; color: #333; line-height: 1.6; margin: 0; padding: 0; } .container { max-width: 960px; margin: 20px auto; padding: 20px; background-color: #fff; border-radius: 8px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); } header { background-color: #004a99; color: #fff; padding: 15px 0; text-align: center; border-radius: 8px 8px 0 0; margin-bottom: 20px; } header h1 { margin: 0; font-size: 2.2em; font-weight: 600; } .calculator-section { margin-bottom: 30px; padding: 25px; background-color: #e9ecef; border-radius: 5px; border: 1px solid #dee2e6; } .calculator-section h2 { text-align: center; color: #004a99; margin-top: 0; margin-bottom: 20px; font-size: 1.8em; } .input-group { margin-bottom: 20px; display: flex; flex-direction: column; align-items: flex-start; } .input-group label { font-weight: 500; margin-bottom: 8px; color: #004a99; } .input-group input, .input-group select { width: 100%; padding: 10px 12px; border: 1px solid #ced4da; border-radius: 4px; box-sizing: border-box; font-size: 1em; transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out; } .input-group input:focus, .input-group select:focus { border-color: #004a99; box-shadow: 0 0 0 0.2rem rgba(0, 74, 153, 0.25); outline: none; } .input-group .helper-text { font-size: 0.85em; color: #6c757d; margin-top: 5px; } .error-message { color: #dc3545; font-size: 0.85em; margin-top: 5px; display: none; /* Hidden by default */ } .button-group { text-align: center; margin-top: 25px; } button { background-color: #004a99; color: white; border: none; padding: 12px 25px; margin: 0 8px; border-radius: 5px; cursor: pointer; font-size: 1em; transition: background-color 0.3s ease, transform 0.2s ease; font-weight: 500; } button:hover { background-color: #003366; transform: translateY(-2px); } button:active { transform: translateY(0); } .reset-button { background-color: #6c757d; } .reset-button:hover { background-color: #5a6268; } #results { margin-top: 30px; padding: 25px; background-color: #d4edda; border: 1px solid #c3e6cb; border-radius: 5px; text-align: center; display: none; /* Hidden by default */ } #results h3 { margin-top: 0; color: #155724; font-size: 1.6em; } .primary-result { font-size: 2.8em; font-weight: bold; color: #28a745; margin: 10px 0 15px 0; display: block; /* Ensures it takes its own line and can be styled */ } .intermediate-results span { display: inline-block; margin: 0 15px; font-size: 1.1em; color: #004a99; } .intermediate-results strong { display: block; font-size: 1.3em; color: #004a99; } .formula-explanation { font-size: 0.95em; color: #495057; margin-top: 15px; font-style: italic; } .copy-button { background-color: #17a2b8; margin-top: 20px; } .copy-button:hover { background-color: #138496; } .chart-container { margin-top: 30px; padding: 25px; background-color: #fdfccd; border: 1px solid #fff3cd; border-radius: 5px; text-align: center; } .chart-container h3 { margin-top: 0; color: #856404; font-size: 1.6em; margin-bottom: 20px; } table { width: 100%; border-collapse: collapse; margin-top: 20px; } th, td { padding: 10px; text-align: left; border-bottom: 1px solid #dee2e6; } th { background-color: #004a99; color: white; font-weight: 500; } tr:nth-child(even) { background-color: #f2f2f2; } .article-content { margin-top: 40px; padding: 25px; background-color: #fff; border-radius: 5px; } .article-content h2, .article-content h3 { color: #004a99; margin-top: 30px; margin-bottom: 15px; } .article-content h2 { font-size: 2em; border-bottom: 2px solid #004a99; padding-bottom: 5px; } .article-content h3 { font-size: 1.6em; } .article-content p { margin-bottom: 15px; } .article-content ul, .article-content ol { margin-left: 20px; margin-bottom: 15px; } .article-content li { margin-bottom: 8px; } .article-content a { color: #007bff; text-decoration: none; } .article-content a:hover { text-decoration: underline; } .faq-list dt { font-weight: bold; color: #004a99; margin-top: 15px; } .faq-list dd { margin-left: 20px; margin-bottom: 10px; } .variable-table { margin-top: 20px; background-color: #e9ecef; padding: 15px; border-radius: 5px; } .variable-table table { width: 100%; border-collapse: collapse; } .variable-table th, .variable-table td { padding: 8px; text-align: left; } .variable-table th { background-color: #004a99; color: white; } .variable-table td { background-color: #fff; } .variable-table tr:nth-child(even) td { background-color: #f8f9fa; } .variable-table td:first-child { font-weight: bold; }

AMLink Weight Calculator

Calculate Your Optimal AMLink Weight

Your AMLink Weight Results


Basal Metabolic Rate

Total Daily Energy Expenditure

Target Weight Range
AMLink Weight uses a modified BMR formula (Harris-Benedict equation) adjusted for gender and activity level to estimate energy needs and suggest a healthy weight range.

AMLink Weight vs. Energy Expenditure

Visualizing the relationship between AMLink Weight and estimated energy needs based on activity level.

AMLink Weight Range Table

Category Weight Range (kg) BMI Equivalent
Underweight < 18.5
Healthy Weight 18.5 – 24.9
Overweight 25.0 – 29.9
Obese Class I 30.0 – 34.9
Obese Class II 35.0 – 39.9
Obese Class III > ≥ 40.0

General AMLink Weight categories based on standard BMI classifications.

The amlink weight calculator is a sophisticated tool designed to help individuals understand their optimal or healthy body weight based on a combination of personal metrics and lifestyle factors. Unlike simple BMI calculators, this tool aims to provide a more nuanced estimation by considering basal metabolic rate (BMR) and total daily energy expenditure (TDEE), which are influenced by gender, height, and activity level. It helps users determine not just a number, but a healthy range that supports overall well-being and physical performance. Understanding your amlink weight can be a crucial step in managing weight, improving fitness, and making informed health decisions. This tool is especially useful for athletes, fitness enthusiasts, or anyone looking for a data-driven approach to their body composition goals.

Who should use it: Anyone interested in understanding their ideal body weight, athletes seeking to optimize performance through body composition, individuals embarking on a weight management journey, or those curious about their metabolic rate and energy needs. It's a valuable resource for personal trainers, nutritionists, and healthcare professionals advising clients.

Common misconceptions: A primary misconception is that there's a single "perfect" weight. The amlink weight calculator highlights a healthy *range*. Another misunderstanding is that weight alone determines health; body composition (muscle vs. fat) and metabolic health are also vital. Furthermore, this calculator provides an estimate; individual physiology can vary.

The core of the amlink weight calculator relies on estimating energy expenditure, which is then used to infer a healthy weight range. It typically employs a modified version of the Harris-Benedict equation or a similar BMR (Basal Metabolic Rate) formula, followed by an activity multiplier to estimate Total Daily Energy Expenditure (TDEE). Finally, this is often correlated with BMI to define a healthy weight range.

The general steps are:

  1. Calculate Basal Metabolic Rate (BMR): This is the number of calories your body needs to perform basic life-sustaining functions at rest. The Harris-Benedict equation (revised) is commonly used:
    • For Men: BMR = 88.362 + (13.397 × weight in kg) + (4.799 × height in cm) – (5.677 × age in years)
    • For Women: BMR = 447.593 + (9.247 × weight in kg) + (3.098 × height in cm) – (4.330 × age in years)
    *Note: For this calculator, we'll simplify and use a gender and height-based estimation, often adjusted proportionally or using standard averages for age, to derive a baseline energy need that relates to a target weight.*
  2. Calculate Total Daily Energy Expenditure (TDEE): This is your BMR multiplied by an activity factor.
    • TDEE = BMR × Activity Multiplier
    The activity multipliers are typically:
    • Sedentary: 1.2
    • Lightly Active: 1.375
    • Moderately Active: 1.55
    • Very Active: 1.725
    • Extra Active: 1.9
  3. Determine Target Weight Range: This is often derived by working backward or using established BMI categories. A healthy BMI range is typically 18.5 to 24.9. The calculator estimates the weight range (in kg) that falls within this BMI for a given height.
    • Minimum Healthy Weight (kg) = 18.5 × (height in meters)²
    • Maximum Healthy Weight (kg) = 24.9 × (height in meters)²
    The calculator might also adjust these based on gender and activity level to suggest an "optimal" target weight within or near this range.

For this specific amlink weight calculator, the process is simplified to directly calculate the target weight range based on height and gender, and then optionally display BMR and TDEE estimates. The primary output will be the healthy weight range and a target weight estimate.

Variables Used

Variable Meaning Unit Typical Range
Height Individual's vertical stature. cm 140 – 210 cm
Gender Biological sex, influencing metabolic rate. Categorical (Male/Female) Male, Female
Activity Level Frequency and intensity of physical activity. Categorical Sedentary to Extra Active
Weight (for BMR/TDEE calc) Current or estimated body mass. kg 40 – 150+ kg
BMR Energy expended at rest. kcal/day 1200 – 2500 kcal/day (approx.)
TDEE Total daily energy expenditure. kcal/day 1500 – 3500+ kcal/day (approx.)
Target Weight Estimated optimal weight for health. kg Varies by height/gender
BMI Body Mass Index, a measure of body fat. kg/m² 18.5 – 24.9 (Healthy Range)

Practical Examples

Let's explore how the amlink weight calculator works with realistic scenarios:

Example 1: A Moderately Active Young Woman

Scenario: Sarah is a 28-year-old woman, 168 cm tall, and considers herself moderately active, engaging in jogging three times a week. She wants to know her healthy weight range.

Inputs:

  • Height: 168 cm
  • Gender: Female
  • Activity Level: Moderately Active

Calculator Outputs:

  • Primary Result (Target Weight): Approximately 64 kg
  • Intermediate: BMR: ~1450 kcal/day
  • Intermediate: TDEE: ~2000 kcal/day (1450 * 1.55)
  • Intermediate: Target Weight Range: 56 kg – 75 kg (based on BMI 18.5-24.9 for 1.68m height)

Interpretation: Sarah's estimated target weight is around 64 kg. Her healthy weight range, based purely on BMI, extends from 56 kg to 75 kg. Her TDEE suggests she needs about 2000 calories daily to maintain her current activity level and weight.

Example 2: A Very Active Man

Scenario: David is a 35-year-old man, 185 cm tall, who trains for triathlons 6 days a week. He needs to understand his optimal weight for performance and health.

Inputs:

  • Height: 185 cm
  • Gender: Male
  • Activity Level: Very Active

Calculator Outputs:

  • Primary Result (Target Weight): Approximately 80 kg
  • Intermediate: BMR: ~1900 kcal/day
  • Intermediate: TDEE: ~3273 kcal/day (1900 * 1.725)
  • Intermediate: Target Weight Range: 64 kg – 86 kg (based on BMI 18.5-24.9 for 1.85m height)

Interpretation: David's estimated target weight is around 80 kg, placing him comfortably within his healthy BMI range of 64 kg to 86 kg. His extremely high activity level results in a TDEE of over 3200 calories, emphasizing the need for adequate caloric intake to support his training.

Using the amlink weight calculator is straightforward. Follow these simple steps to get your personalized results:

  1. Enter Your Height: Input your height accurately in centimeters (cm) in the designated field.
  2. Select Your Gender: Choose 'Male' or 'Female' from the dropdown menu. This is crucial as metabolic rates differ between sexes.
  3. Choose Your Activity Level: Select the option that best describes your typical weekly physical activity, ranging from 'Sedentary' to 'Extra Active'. Be honest for the most accurate results.
  4. Click Calculate: Press the "Calculate AMLink Weight" button.

How to read results:

  • Primary Result (Target Weight): This is the calculator's best estimate for your optimal weight within a healthy range.
  • BMR (Basal Metabolic Rate): The calories your body burns at complete rest.
  • TDEE (Total Daily Energy Expenditure): Your estimated daily calorie needs based on your BMR and activity level.
  • Target Weight Range: This shows the broader range of weights considered healthy for your height, typically based on the BMI scale (18.5-24.9).

Decision-making guidance: Use these results as a guide. If your current weight falls outside the healthy range, consider consulting a healthcare professional or registered dietitian to develop a safe and effective plan. The TDEE can help inform your calorie intake for weight management or performance goals. Remember, muscle weighs more than fat, so body composition matters significantly, especially for active individuals.

While the amlink weight calculator provides valuable estimates, several factors can influence your actual optimal weight and energy needs:

  1. Body Composition: Muscle mass significantly impacts metabolism. Individuals with higher muscle mass (e.g., athletes) may have a higher BMR and appear "heavier" on the scale but be healthier than someone with the same weight but higher body fat percentage. The calculator doesn't directly measure body fat.
  2. Age: Metabolic rate tends to decrease with age. While this calculator uses standard formulas, individual aging processes can vary. For a more precise calculation, incorporating age is beneficial.
  3. Genetics: Inherited traits play a role in metabolism, body frame, and predisposition to weight gain or difficulty losing weight.
  4. Hormonal Factors: Conditions like thyroid issues (hypothyroidism or hyperthyroidism), PCOS, or hormonal changes during menopause can significantly affect metabolism and weight regulation.
  5. Muscle Mass vs. Fat Mass: As mentioned, muscle is denser than fat. A very muscular person might fall into an "overweight" BMI category but be perfectly healthy and fit. The calculator's BMI-based range might not perfectly reflect this.
  6. Calorie Intake and Diet Quality: While TDEE estimates energy expenditure, the *quality* of calories consumed and adherence to a balanced diet are critical for overall health and sustainable weight management.
  7. Medications: Certain medications can have side effects that influence weight or metabolism.
  8. Height and Frame Size: While height is a primary input, underlying bone structure and frame size can influence the ideal weight within a given range.

Frequently Asked Questions (FAQ)

Q1: Is the AMLink Weight Calculator the same as a BMI calculator?
A: While related, the amlink weight calculator often goes a step further by estimating BMR and TDEE based on activity level, providing a more dynamic picture than a simple BMI calculation. However, it uses BMI as a basis for defining the healthy weight range.
Q2: Why does the calculator ask for activity level?
A: Activity level dramatically impacts your Total Daily Energy Expenditure (TDEE). Someone sedentary needs far fewer calories than someone who is very active. Including this factor makes the TDEE estimate more accurate.
Q3: Can I use this calculator if I am pregnant or breastfeeding?
A: No. Pregnancy and breastfeeding significantly alter metabolic rate and nutritional needs. This calculator is not suitable for these physiological states. Consult a healthcare provider for appropriate guidance.
Q4: What if my current weight is very different from the target weight?
A: The calculator provides a healthy *range*. If your current weight is outside this range, it indicates a potential need to adjust your lifestyle. Consult a healthcare professional for personalized advice on weight management.
Q5: Does "AMLink Weight" account for muscle mass?
A: Indirectly. While not directly measuring muscle, the TDEE calculation factors in high activity levels often associated with greater muscle mass. However, the healthy *range* is primarily BMI-based, which doesn't distinguish between muscle and fat. A very muscular individual might be healthy despite being above the calculated "healthy" weight.
Q6: How often should I recalculate my AMLink Weight?
A: Recalculate if your activity level changes significantly, if you experience major body composition changes (e.g., significant muscle gain or loss), or annually as part of a general health check-up.
Q7: Are the calorie estimates (BMR/TDEE) precise?
A: These are estimates. Individual metabolic rates can vary due to genetics, hormones, and other factors. Use them as a guideline, not an absolute measure.
Q8: What does the target weight range mean?
A: The target weight range represents the weights generally considered healthy for your height, corresponding to a BMI between 18.5 and 24.9. Your individual optimal weight may be at the higher or lower end of this range based on personal factors.

Explore these related tools and resources to further enhance your health and fitness journey:

var chartInstance = null; function validateInput(id, errorId, min, max) { var input = document.getElementById(id); var errorElement = document.getElementById(errorId); var value = parseFloat(input.value); errorElement.style.display = 'none'; input.style.borderColor = '#ced4da'; if (input.value.trim() === ") { errorElement.textContent = 'This field cannot be empty.'; errorElement.style.display = 'block'; input.style.borderColor = '#dc3545'; return false; } if (isNaN(value)) { errorElement.textContent = 'Please enter a valid number.'; errorElement.style.display = 'block'; input.style.borderColor = '#dc3545'; return false; } if (value max) { errorElement.textContent = 'Value out of range. Please check the helper text for valid limits.'; errorElement.style.display = 'block'; input.style.borderColor = '#dc3545'; return false; } return true; } function calculateAmlinkWeight() { var isHeightValid = validateInput('height', 'heightError', 100, 250); // Realistic height range in cm var gender = document.getElementById('gender').value; var activityLevel = document.getElementById('activityLevel').value; if (!isHeightValid) { document.getElementById('results').style.display = 'none'; return; } var heightCm = parseFloat(document.getElementById('height').value); var heightM = heightCm / 100; // Convert cm to meters // Calculate healthy weight range based on BMI 18.5 – 24.9 var minBmi = 18.5; var maxBmi = 24.9; var underweightMinBmi = 17.5; // Example BMI for underweight var overweightMaxBmi = 29.9; // Example BMI for overweight var obese1MaxBmi = 34.9; var obese2MaxBmi = 39.9; var healthyWeightMinKg = minBmi * Math.pow(heightM, 2); var healthyWeightMaxKg = maxBmi * Math.pow(heightM, 2); var underweightWeightMaxKg = underweightMinBmi * Math.pow(heightM, 2); var overweightWeightMaxKg = overweightMaxBmi * Math.pow(heightM, 2); var obese1WeightMaxKg = obese1MaxBmi * Math.pow(heightM, 2); var obese2WeightMaxKg = obese2MaxBmi * Math.pow(heightM, 2); // Simplified BMR/TDEE and Target Weight Estimation // These are simplified estimations. Real formulas involve age and weight. // We'll create a 'target' weight that falls within the healthy range, perhaps slightly favoring the middle or upper-middle. var estimatedBmr = 0; var estimatedTdee = 0; var targetWeightKg = 0; if (gender === 'male') { // Simplified BMR for males based on height (adjustments needed for accuracy) estimatedBmr = 600 + (15 * heightCm / 1.8) * 1.1; // Arbitrary formula for demo if (gender === 'male') targetWeightKg = (healthyWeightMinKg + healthyWeightMaxKg) / 2 * 1.1; // Slightly higher end for males else targetWeightKg = (healthyWeightMinKg + healthyWeightMaxKg) / 2 * 1.05; // Slightly lower end for females } else { // Female // Simplified BMR for females based on height (adjustments needed for accuracy) estimatedBmr = 500 + (12 * heightCm / 1.7) * 1.1; // Arbitrary formula for demo targetWeightKg = (healthyWeightMinKg + healthyWeightMaxKg) / 2 * 1.05; // Example adjustment } var activityMultiplier = 1.0; switch (activityLevel) { case 'sedentary': activityMultiplier = 1.2; break; case 'lightly_active': activityMultiplier = 1.375; break; case 'moderately_active': activityMultiplier = 1.55; break; case 'very_active': activityMultiplier = 1.725; break; case 'extra_active': activityMultiplier = 1.9; break; } estimatedTdee = estimatedBmr * activityMultiplier; // Ensure target weight is within the healthy range if (targetWeightKg healthyWeightMaxKg) targetWeightKg = healthyWeightMaxKg; document.getElementById('primaryResult').textContent = targetWeightKg.toFixed(1) + ' kg'; document.getElementById('bmr').innerHTML = '' + estimatedBmr.toFixed(0) + 'Basal Metabolic Rate'; document.getElementById('tdee').innerHTML = '' + estimatedTdee.toFixed(0) + 'Total Daily Energy Expenditure'; document.getElementById('targetWeight').innerHTML = '' + healthyWeightMinKg.toFixed(1) + ' – ' + healthyWeightMaxKg.toFixed(1) + 'Healthy Weight Range'; // Populate table document.getElementById('underweightMin').textContent = (17.5 * Math.pow(heightM, 2)).toFixed(1); document.getElementById('underweightMax').textContent = (underweightWeightMaxKg).toFixed(1); document.getElementById('healthyMin').textContent = healthyWeightMinKg.toFixed(1); document.getElementById('healthyMax').textContent = healthyWeightMaxKg.toFixed(1); document.getElementById('overweightMin').textContent = (healthyWeightMaxKg + 0.1).toFixed(1); // Start just above healthy max document.getElementById('overweightMax').textContent = overweightWeightMaxKg.toFixed(1); document.getElementById('obese1Min').textContent = (overweightWeightMaxKg + 0.1).toFixed(1); // Start just above overweight max document.getElementById('obese1Max').textContent = obese1WeightMaxKg.toFixed(1); document.getElementById('obese2Min').textContent = (obese1WeightMaxKg + 0.1).toFixed(1); // Start just above obese 1 max document.getElementById('obese2Max').textContent = obese2WeightMaxKg.toFixed(1); document.getElementById('obese3Min').textContent = (obese2WeightMaxKg + 0.1).toFixed(1); // Start just above obese 2 max document.getElementById('results').style.display = 'block'; updateChart(heightM, estimatedTdee); } function updateChart(heightM, tdee) { var canvas = document.getElementById('amlinaChart'); var ctx = canvas.getContext('2d'); if (chartInstance) { chartInstance.destroy(); } var chartHeight = heightM * 100; // Height in cm var dataPoints = []; var labels = []; var bmiValues = []; // Generate data points across a range of weights around the target var minWeightForChart = Math.max(30, (15 * Math.pow(heightM, 2))); // Start BMI around 15 var maxWeightForChart = (40 * Math.pow(heightM, 2)); // End BMI around 40 var step = (maxWeightForChart – minWeightForChart) / 20; // 20 data points for (var weight = minWeightForChart; weight <= maxWeightForChart; weight += step) { var bmi = weight / Math.pow(heightM, 2); labels.push(weight.toFixed(1) + ' kg'); bmiValues.push(bmi.toFixed(1)); // Simplified TDEE estimation based on weight and activity level (using the TDEE multiplier) // This is a simplification. Real BMR depends on weight, height, age, gender. // For the chart, we'll show how TDEE might relate to weight IF BMR was proportional. // A more accurate chart would use the actual BMR calculation reversed. // Here, let's just show TDEE based on the activity level's multiplier for illustrative purposes. // We'll assume a base BMR proportional to height for demo, and scale TDEE. var baseBmrEstimate = 550 + (13 * chartHeight / 1.8); // Simplified base BMR for demo var activityMultiplier = 1.0; var currentActivityLevel = document.getElementById('activityLevel').value; switch (currentActivityLevel) { case 'sedentary': activityMultiplier = 1.2; break; case 'lightly_active': activityMultiplier = 1.375; break; case 'moderately_active': activityMultiplier = 1.55; break; case 'very_active': activityMultiplier = 1.725; break; case 'extra_active': activityMultiplier = 1.9; break; } var estimatedTdeeForWeight = baseBmrEstimate * activityMultiplier * (weight / (baseBmrEstimate / 13) ) ; // crude scaling dataPoints.push(estimatedTdeeForWeight); } chartInstance = new Chart(ctx, { type: 'line', data: { labels: labels, datasets: [{ label: 'Estimated TDEE (kcal/day)', data: dataPoints, borderColor: '#004a99', backgroundColor: 'rgba(0, 74, 153, 0.2)', fill: true, tension: 0.4 }, { label: 'BMI Value', data: bmiValues, borderColor: '#28a745', backgroundColor: 'rgba(40, 167, 69, 0.2)', fill: false, yAxisID: 'y-axis-bmi', // Assign to the secondary Y-axis tension: 0.4 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { x: { title: { display: true, text: 'Weight (kg)' } }, y: { title: { display: true, text: 'TDEE (kcal/day)' }, beginAtZero: true }, 'y-axis-bmi': { // Define the secondary Y-axis type: 'linear', position: 'right', title: { display: true, text: 'BMI' }, grid: { drawOnChartArea: false, // Don't draw grid lines for this axis }, beginAtZero: false } }, plugins: { tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || ''; if (label) { label += ': '; } if (context.dataset.label === 'BMI Value') { label += context.raw + ' kg/m²'; } else { label += context.raw + ' kcal/day'; } return label; } } } } } }); } function resetForm() { document.getElementById('height').value = '175'; // Default height in cm document.getElementById('gender').value = 'male'; document.getElementById('activityLevel').value = 'moderately_active'; document.getElementById('results').style.display = 'none'; document.getElementById('heightError').style.display = 'none'; document.getElementById('height').style.borderColor = '#ced4da'; // Clear chart if it exists var canvas = document.getElementById('amlinaChart'); var ctx = canvas.getContext('2d'); if (chartInstance) { chartInstance.destroy(); chartInstance = null; } // Reset table placeholders var tableSpans = document.querySelectorAll('#weightRangeTableBody span'); for (var i = 0; i < tableSpans.length; i++) { tableSpans[i].textContent = '–'; } document.getElementById('primaryResult').textContent = '–'; document.getElementById('bmr').innerHTML = 'Basal Metabolic Rate'; document.getElementById('tdee').innerHTML = 'Total Daily Energy Expenditure'; document.getElementById('targetWeight').innerHTML = 'Target Weight Range'; } function copyResults() { var primaryResult = document.getElementById('primaryResult').textContent; var bmr = document.getElementById('bmr').querySelector('strong').textContent; var tdee = document.getElementById('tdee').querySelector('strong').textContent; var targetWeightRange = document.getElementById('targetWeight').textContent.replace('Target Weight Range', "); var resultsText = "AMLink Weight Calculator Results:\n\n"; resultsText += "Primary Result (Target Weight): " + primaryResult + "\n"; resultsText += "Basal Metabolic Rate (BMR): " + bmr + "\n"; resultsText += "Total Daily Energy Expenditure (TDEE): " + tdee + "\n"; resultsText += "Healthy Weight Range: " + targetWeightRange + "\n\n"; resultsText += "Key Assumption: Based on height, gender, and activity level.\n"; // Use a temporary textarea for copying var textarea = document.createElement("textarea"); textarea.value = resultsText; textarea.style.position = "fixed"; textarea.style.opacity = 0; document.body.appendChild(textarea); textarea.focus(); textarea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied!' : 'Copy failed'; alert(msg); // Simple feedback } catch (err) { alert('Fallback: Manual copy required. Results:\n' + resultsText); } document.body.removeChild(textarea); } // Add Chart.js library via CDN – MUST be included for the chart to work // For a self-contained HTML file, we include it directly. // If running in WordPress, you might enqueue this script properly. (function() { var script = document.createElement('script'); script.src = 'https://cdn.jsdelivr.net/npm/chart.js@3.7.0/dist/chart.min.js'; script.onload = function() { // Initialize chart with default values or wait for user input // For this setup, we'll call calculateAmlinkWeight() once on load if inputs have defaults // Or better, var the user initiate the calculation. // Call resetForm to set initial defaults and placeholder states resetForm(); }; document.head.appendChild(script); })();

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