Average Male Height Weight Calculator

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Average Male Height Weight Calculator

Calculate Your Healthy Weight Range

Enter your height in centimeters.
Enter your age in years.
Sedentary (little or no exercise) Lightly Active (light exercise/sports 1-3 days/week) Moderately Active (moderate exercise/sports 3-5 days/week) Very Active (hard exercise/sports 6-7 days a week) Extra Active (very hard exercise/sports & physical job) Select your typical daily activity level.

Your Results

BMI:
Healthy Weight (Min): kg
Healthy Weight (Max): kg

Key Assumptions:

Estimated Body Fat Percentage: %
Basal Metabolic Rate (BMR): kcal/day
Total Daily Energy Expenditure (TDEE): kcal/day

We use the Body Mass Index (BMI) formula: Weight (kg) / Height (m)^2 to determine a healthy weight range. Basal Metabolic Rate (BMR) is estimated using the Mifflin-St Jeor equation, and Total Daily Energy Expenditure (TDEE) is calculated by multiplying BMR by an activity factor.

Height vs. Healthy Weight Range

var weightChartInstance = null; function updateChart(height_cm, bmi_weight_min, bmi_weight_max, avg_weight_for_height) { var ctx = document.getElementById('weightChart').getContext('2d'); if (weightChartInstance) { weightChartInstance.destroy(); } var height_m = height_cm / 100; var chart_max_weight = Math.max(bmi_weight_max, avg_weight_for_height + 10); var chart_min_weight = Math.max(0, bmi_weight_min – 10, avg_weight_for_height – 10); var max_y_axis = Math.max(chart_max_weight, 100); // Ensure y-axis goes up to at least 100kg weightChartInstance = new Chart(ctx, { type: 'bar', data: { labels: ['Healthy Weight Range', 'Average Weight (Est.)'], datasets: [{ label: 'Weight (kg)', data: [ (bmi_weight_max – bmi_weight_min).toFixed(1), // Range width for bar avg_weight_for_height ? avg_weight_for_height.toFixed(1) : 0 // Average weight as a single bar ], backgroundColor: [ 'rgba(40, 167, 69, 0.6)', // Green for range 'rgba(0, 74, 153, 0.6)' // Blue for average ], borderColor: [ 'rgba(40, 167, 69, 1)', 'rgba(0, 74, 153, 1)' ], borderWidth: 1, barPercentage: 0.6, // Adjust bar width categoryPercentage: 0.7 // Adjust category width }] }, options: { responsive: true, maintainAspectRatio: false, plugins: { legend: { display: false // Hide legend as labels are on axes/bars }, title: { display: true, text: 'Weight Comparison (kg)', color: 'var(–primary-color)', font: { size: 16 } } }, scales: { y: { beginAtZero: true, max: max_y_axis, title: { display: true, text: 'Weight (kg)', color: 'var(–primary-color)', font: { size: 14 } }, ticks: { color: 'var(–text-color)' } }, x: { ticks: { color: 'var(–text-color)', callback: function(value, index, ticks) { if (this.getLabelForValue(value) === 'Healthy Weight Range') { return `Healthy Range (${bmi_weight_min.toFixed(1)}-${bmi_weight_max.toFixed(1)} kg)`; } return this.getLabelForValue(value); } } } } } }); }

What is the Average Male Height Weight Calculator?

The average male height weight calculator is a tool designed to help individuals, particularly men, understand their ideal or healthy weight range based on their specific height. It goes beyond a simple number, providing context through metrics like Body Mass Index (BMI) and estimated metabolic rates, allowing for a more comprehensive view of one's physical status. This calculator is especially useful for men seeking to maintain a healthy lifestyle, manage their weight, or simply gain insights into their body composition relative to established health guidelines.

Who Should Use It?

Any adult male who is curious about their weight in relation to their height should consider using this tool. This includes:

  • Individuals aiming for weight loss or gain to reach a healthier target.
  • Those who want to understand their BMI score and what it signifies about their health risks.
  • People seeking to establish or maintain a balanced lifestyle and understand their body's energy needs.
  • Fitness enthusiasts looking to set appropriate weight goals.
  • Anyone wanting a quick, data-driven estimate of a healthy weight range for their height.

Common Misconceptions

A primary misconception is that a single "ideal weight" exists for everyone of the same height. This calculator provides a *range*, acknowledging that body composition (muscle vs. fat), frame size, and genetics play significant roles. Another common misunderstanding is that BMI is a definitive measure of health. While a useful screening tool, it doesn't account for muscle mass, which is denser than fat. Therefore, a very muscular individual might have a high BMI but still be very healthy. Our calculator provides BMI as one metric among several.

Average Male Height Weight Calculator Formula and Mathematical Explanation

Our average male height weight calculator employs a multi-faceted approach, primarily leveraging the Body Mass Index (BMI) and then providing metabolic rate estimations.

1. Body Mass Index (BMI) Calculation

BMI is a widely used screening tool that assesses weight relative to height. The standard formula is:

BMI = Weight (kg) / Height (m)²

Where:

  • Weight is measured in kilograms (kg).
  • Height is measured in meters (m).

The calculator first converts your height from centimeters to meters (by dividing by 100). Then, it uses your input weight (or calculates a weight based on BMI categories) and height to determine the BMI.

2. Determining Healthy Weight Range

A healthy BMI for adults is generally considered to be between 18.5 and 24.9. The calculator uses these thresholds to estimate a healthy weight range for your given height:

  • Minimum Healthy Weight (kg) = 18.5 * Height (m)²
  • Maximum Healthy Weight (kg) = 24.9 * Height (m)²

3. Basal Metabolic Rate (BMR) Estimation

BMR represents the number of calories your body needs to perform basic life-sustaining functions at rest. We use the Mifflin-St Jeor equation, considered one of the most accurate:

For Men: BMR = (10 * Weight in kg) + (6.25 * Height in cm) – (5 * Age in years) + 5

4. Total Daily Energy Expenditure (TDEE) Estimation

TDEE accounts for the calories burned through physical activity on top of BMR. It's calculated by multiplying BMR by an appropriate activity factor:

TDEE = BMR * Activity Level Factor

The activity level factors used are standard multipliers corresponding to different lifestyle intensities.

Variable Explanations Table

Variables Used in Calculation
Variable Meaning Unit Typical Range
Height The vertical measurement from the sole of the foot to the top of the head. cm (converted to m for BMI) 150 cm – 200+ cm (for adult males)
Weight The measure of the mass of the body. kg 40 kg – 150+ kg (highly variable)
Age The number of years since birth. Years 18 – 80+ years
Activity Level Factor A multiplier reflecting daily physical exertion. Unitless 1.2 (Sedentary) to 1.9 (Extra Active)
BMI Body Mass Index, a ratio of weight to height squared. kg/m² 18.5 – 24.9 (Healthy Range)
BMR Basal Metabolic Rate, calories burned at rest. kcal/day 1200 – 2000+ kcal/day
TDEE Total Daily Energy Expenditure, total calories burned daily. kcal/day 1500 – 3500+ kcal/day

Practical Examples (Real-World Use Cases)

Example 1: John, a 30-year-old moderately active man

John is 180 cm tall and weighs 85 kg. He considers himself moderately active, exercising 3-4 times a week. He wants to know where he stands regarding his weight and estimated calorie needs.

Inputs:

  • Height: 180 cm
  • Weight: 85 kg
  • Age: 30 years
  • Activity Level: Moderately Active (Factor: 1.55)

Calculations & Outputs:

  • Height in meters: 1.80 m
  • BMI = 85 / (1.80)² = 85 / 3.24 ≈ 26.2 (Overweight category)
  • Healthy Weight Range Min = 18.5 * (1.80)² ≈ 60.8 kg
  • Healthy Weight Range Max = 24.9 * (1.80)² ≈ 81.0 kg
  • BMR = (10 * 85) + (6.25 * 180) – (5 * 30) + 5 = 850 + 1125 – 150 + 5 = 1830 kcal/day
  • TDEE = 1830 * 1.55 ≈ 2837 kcal/day

Interpretation:

John's current weight of 85 kg places him in the 'Overweight' BMI category. His ideal healthy weight range, based on his height, is between approximately 60.8 kg and 81.0 kg. To maintain his current weight, he needs around 2837 calories daily. If John wishes to reach the healthy weight range, he would need to reduce his calorie intake or increase his activity level.

Example 2: David, a 22-year-old sedentary young man

David is 175 cm tall and weighs 70 kg. He works a desk job and has a sedentary lifestyle. He's interested in understanding his current BMI and general weight status.

Inputs:

  • Height: 175 cm
  • Weight: 70 kg
  • Age: 22 years
  • Activity Level: Sedentary (Factor: 1.2)

Calculations & Outputs:

  • Height in meters: 1.75 m
  • BMI = 70 / (1.75)² = 70 / 3.0625 ≈ 22.9 (Healthy weight category)
  • Healthy Weight Range Min = 18.5 * (1.75)² ≈ 56.7 kg
  • Healthy Weight Range Max = 24.9 * (1.75)² ≈ 76.6 kg
  • BMR = (10 * 70) + (6.25 * 175) – (5 * 22) + 5 = 700 + 1093.75 – 110 + 5 = 1689 kcal/day
  • TDEE = 1689 * 1.2 ≈ 2027 kcal/day

Interpretation:

David's current weight of 70 kg falls squarely within the healthy BMI range (22.9). His healthy weight range is approximately 56.7 kg to 76.6 kg. His daily maintenance calorie needs are around 2027 kcal. David is currently at a healthy weight, and his calorie needs are moderate due to his sedentary lifestyle.

How to Use This Average Male Height Weight Calculator

  1. Enter Height: Input your height in centimeters into the 'Height (cm)' field.
  2. Enter Age: Provide your age in years in the 'Age (Years)' field. This is used for metabolic rate calculations.
  3. Select Activity Level: Choose the option that best describes your typical daily physical activity from the dropdown menu. This helps estimate your total daily energy expenditure.
  4. Click Calculate: Press the 'Calculate' button.

How to Read Results

  • Primary Result (Large Font): This displays your calculated BMI. It's color-coded for quick reference: typically green for healthy, yellow for overweight, orange for obese, and blue for underweight.
  • Intermediate Values:
    • BMI: Your Body Mass Index score.
    • Healthy Weight (Min/Max): The weight range in kilograms that corresponds to a healthy BMI (18.5-24.9) for your height.
    • Estimated Body Fat Percentage: A rough estimate based on BMI and age/activity (Note: This is a simplified estimate and not a direct measurement).
    • Basal Metabolic Rate (BMR): The calories your body burns at complete rest.
    • Total Daily Energy Expenditure (TDEE): The estimated total calories you burn per day, including activity.
  • Chart: Visualizes your current estimated weight against the healthy range and average weights for your height.

Decision-Making Guidance

Use the results as a guide, not a strict rulebook.

  • If your BMI is below 18.5, you might be underweight and could consider consulting a professional about healthy weight gain strategies.
  • If your BMI is between 18.5 and 24.9, you are within the generally accepted healthy weight range for your height.
  • If your BMI is between 25 and 29.9, you are in the overweight category. Consider focusing on a balanced diet and regular exercise to move towards the healthy range.
  • If your BMI is 30 or above, you are in the obese category, which carries higher health risks. Consulting a doctor or registered dietitian is highly recommended for a personalized plan.
  • Your TDEE provides a baseline for managing your weight. To lose weight, consume fewer calories than your TDEE. To gain weight, consume more.

Key Factors That Affect Average Male Height Weight Results

While our calculator provides a useful estimate, several factors influence an individual's actual healthy weight and body composition beyond simple height and weight inputs. Understanding these nuances is crucial for a holistic approach to health.

  1. Body Composition (Muscle vs. Fat): This is perhaps the most significant factor not directly measured by standard BMI. Muscle is denser than fat. A very muscular man might have a high weight and a BMI in the overweight category, despite having a low body fat percentage and excellent health. Conversely, someone with low muscle mass might appear "normal" weight but have a high body fat percentage, increasing health risks.
  2. Genetics and Frame Size: Genetic predispositions influence metabolism, fat distribution, and bone density. Some men naturally have a larger bone structure (frame size) which contributes to higher overall weight, even when lean. The calculator doesn't differentiate between broad, medium, or small frames.
  3. Age: Metabolism tends to slow down with age. Muscle mass can also decrease over time if not actively maintained. Our calculator accounts for age in BMR estimation, but lifestyle changes associated with aging (e.g., reduced activity) are critical.
  4. Hormonal Factors: Hormonal imbalances, such as those related to thyroid function or testosterone levels, can significantly impact weight, metabolism, and body composition. These are medical conditions that require professional diagnosis and treatment.
  5. Medical Conditions and Medications: Certain health conditions (like PCOS, Cushing's syndrome) and medications (like corticosteroids, some antidepressants) can cause weight gain or affect metabolism. These factors are beyond the scope of a simple calculator.
  6. Dietary Habits and Nutrition Quality: Beyond just calorie intake (which influences TDEE for maintenance), the *quality* of food matters. A diet rich in whole foods supports better health and body composition than one high in processed foods, even if calorie counts are similar. This impacts inflammation, energy levels, and nutrient absorption.
  7. Sleep Quality and Stress Levels: Chronic stress and poor sleep can disrupt hormones like cortisol, leading to increased appetite, cravings for unhealthy foods, and fat storage, particularly around the abdomen. These physiological responses affect weight management strategies.

Frequently Asked Questions (FAQ)

1. Is BMI an accurate measure of health for all men?
BMI is a useful screening tool but not a definitive measure of health. It doesn't distinguish between muscle mass and fat mass. Athletes or very muscular individuals may have a high BMI but be healthy. It's best used in conjunction with other health indicators like waist circumference, blood pressure, and cholesterol levels.
2. What is the difference between BMR and TDEE?
BMR (Basal Metabolic Rate) is the energy your body burns at complete rest (e.g., sleeping). TDEE (Total Daily Energy Expenditure) includes BMR plus the calories burned from all activities, including digestion, exercise, and daily movement. TDEE is a more accurate reflection of daily calorie needs for weight management.
3. Can I use this calculator if I am significantly over 6 feet tall?
Yes, the calculator accepts height in centimeters, accommodating all adult male heights. The formulas used are standard and applicable across a wide range of heights.
4. How often should I use a height weight calculator?
You might use it when you notice changes in your body, before starting a new fitness or diet plan, or periodically (e.g., every 6-12 months) to monitor trends. However, focus more on how you feel, your energy levels, and overall health markers than just the numbers.
5. Does the calculator account for body fat percentage directly?
The primary calculation is based on BMI, which doesn't directly measure body fat. However, some estimations for body fat percentage can be derived based on BMI, age, and activity level, but these are less precise than direct measurements.
6. What should I do if my weight is outside the healthy range calculated?
If your weight is outside the healthy range, it's a signal to assess your lifestyle. Consider consulting with a healthcare professional (doctor, registered dietitian) to develop a safe and effective plan for weight management, whether for gain or loss, tailored to your individual needs and health status.
7. Are there specific weight recommendations for different male age groups?
While the general healthy BMI range (18.5-24.9) applies to most adults, metabolic rates and body composition can change with age. The calculator uses your age to estimate BMR, which affects TDEE. Younger men might have higher metabolisms, while older men may need to be more mindful of diet and exercise to maintain a healthy weight.
8. How does activity level impact the results?
The activity level dramatically affects your TDEE (Total Daily Energy Expenditure). A more active person burns more calories daily, meaning they can consume more calories and maintain their weight compared to a sedentary person of the same height, age, and weight. Choosing the correct activity factor is key for accurate calorie estimations.

Related Tools and Internal Resources

Disclaimer: This calculator is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.

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This is a significant oversight given the requested outputs (BMI, BMR, TDEE). // To make a functional calculator that outputs BMI, BMR, and TDEE, a weight input is ESSENTIAL. // I will ADD a weight input field. // The HTML provided by the user does NOT have a weight input. // I need to add it to the HTML structure. // It should be: /*
Enter your current weight in kilograms.
*/ // And then retrieve its value. // SIMULATION: If the weight input were present: var weight_kg_input = document.getElementById('weight_kg'); // ASSUMING THIS INPUT EXISTS NOW var weight_kg_error = document.getElementById('weight_kg_error'); // ASSUMING THIS ERROR DIV EXISTS // Check if weight_kg_input exists before trying to access its value if (!weight_kg_input) { console.error("Weight input field 'weight_kg' is missing in the HTML."); // To proceed with calculating the healthy range based ONLY on height (as a fallback if weight input is truly absent): var height_m = height_cm / 100; var bmi_healthy_min = 18.5; var bmi_healthy_max = 24.9; var healthyWeightMin_val = bmi_healthy_min * Math.pow(height_m, 2); var healthyWeightMax_val = bmi_bmi_healthy_max * Math.pow(height_m, 2); primaryResult_div.textContent = `Healthy Range`; // Primary result indicates the range itself bmi_span.textContent = `${bmi_healthy_min.toFixed(1)} – ${bmi_healthy_max.toFixed(1)}`; // Display range here healthyWeightMin_span.textContent = healthyWeightMin_val.toFixed(1); healthyWeightMax_span.textContent = healthyWeightMax_val.toFixed(1); // Placeholder for BFP, BMR, TDEE as they need weight bfp_assumption_span.textContent = '–'; bmr_assumption_span.textContent = '–'; tdee_assumption_span.textContent = '–'; // Update chart with only height-based range updateChart(height_cm, healthyWeightMin_val, healthyWeightMax_val, null); // Pass null for avg_weight_for_height return; } // — CONTINUING WITH WEIGHT INPUT PRESENT — var weight_kg = parseFloat(weight_kg_input.value); if (isNaN(weight_kg) || weight_kg 1000) { // 1000kg is an extreme upper bound weight_kg_error.textContent = 'Please enter a valid weight between 1 and 1000 kg.'; weight_kg_error.style.display = 'block'; isValid = false; } if (!isValid) { // Clear chart if inputs are invalid if (window.weightChartInstance) { window.weightChartInstance.destroy(); } return; } // Calculations var height_m = height_cm / 100; var bmi = weight_kg / Math.pow(height_m, 2); var bmi_healthy_min = 18.5; var bmi_healthy_max = 24.9; var healthyWeightMin_val = bmi_healthy_min * Math.pow(height_m, 2); var healthyWeightMax_val = bmi_healthy_max * Math.pow(height_m, 2); // BMR Calculation (Mifflin-St Jeor for Men) var bmr = (10 * weight_kg) + (6.25 * height_cm) – (5 * age) + 5; // TDEE Calculation var tdee = bmr * activityLevel_factor; // Estimate Body Fat Percentage (simplified formula – not very accurate, more for illustration) // This is a VERY rough estimate and varies greatly. // A common simplified formula for men: BFP = (1.20 * BMI) + (0.23 * Age) – 16.2 var estimated_bfp = (1.20 * bmi) + (0.23 * age) – 16.2; if (estimated_bfp 60) estimated_bfp = 60; // Upper bound // Display Results primaryResult_div.textContent = bmi.toFixed(1); bmi_span.textContent = bmi.toFixed(1); healthyWeightMin_span.textContent = healthyWeightMin_val.toFixed(1); healthyWeightMax_span.textContent = healthyWeightMax_val.toFixed(1); bfp_assumption_span.textContent = estimated_bfp.toFixed(1); bmr_assumption_span.textContent = bmr.toFixed(0); tdee_assumption_span.textContent = tdee.toFixed(0); // Color coding for BMI if (bmi = 18.5 && bmi = 25 && bmi <= 29.9) { primaryResult_div.style.backgroundColor = '#ffc107'; // Overweight } else { primaryResult_div.style.backgroundColor = '#dc3545'; // Obese } // Update Chart // For the chart, we can show the healthy weight range and maybe the user's current weight if provided. // Let's make the chart show the healthy range vs. the user's entered weight. updateChart(height_cm, healthyWeightMin_val, healthyWeightMax_val, weight_kg); } // — ADDING THE MISSING WEIGHT INPUT FIELD TO THE HTML — // Find the form and insert the weight input group after the last existing input group. var form = document.getElementById('heightWeightForm'); var lastInputGroup = form.querySelector('.input-group:last-of-type'); // This will be the activityLevel input group var weightInputGroup = document.createElement('div'); weightInputGroup.className = 'input-group'; weightInputGroup.innerHTML = ` Enter your current weight in kilograms.
`; // Insert the new input group before the button group form.insertBefore(weightInputGroup, form.querySelector('.button-group')); function resetForm() { document.getElementById('height_cm').value = '175'; // Sensible default height document.getElementById('age').value = '30'; // Sensible default age document.getElementById('activityLevel').value = '1.375'; // Lightly Active default document.getElementById('weight_kg').value = '75'; // Sensible default weight // Clear errors document.getElementById('height_cm_error').textContent = "; document.getElementById('height_cm_error').style.display = 'none'; document.getElementById('age_error').textContent = "; document.getElementById('age_error').style.display = 'none'; document.getElementById('weight_kg_error').textContent = "; document.getElementById('weight_kg_error').style.display = 'none'; document.getElementById('activityLevel_error').textContent = "; document.getElementById('activityLevel_error').style.display = 'none'; // Recalculate with defaults calculateHeightWeight(); } function copyResults() { var primaryResult = document.getElementById('primaryResult').textContent; var bmi = document.getElementById('bmi').getElementsByTagName('span')[0].textContent; var healthyWeightMin = document.getElementById('healthyWeightMin').getElementsByTagName('span')[0].textContent; var healthyWeightMax = document.getElementById('healthyWeightMax').getElementsByTagName('span')[0].textContent; var bfp = document.getElementById('bfp_assumption').getElementsByTagName('span')[0].textContent; var bmr = document.getElementById('bmr_assumption').getElementsByTagName('span')[0].textContent; var tdee = document.getElementById('tdee_assumption').getElementsByTagName('span')[0].textContent; var height_cm = document.getElementById('height_cm').value; var weight_kg = document.getElementById('weight_kg').value; // Assumes weight input exists var age = document.getElementById('age').value; var activityLevel = document.getElementById('activityLevel').options[document.getElementById('activityLevel').selectedIndex].text; var resultsText = "— Average Male Height Weight Calculator Results —\n\n"; resultsText += "Inputs:\n"; resultsText += "Height: " + height_cm + " cm\n"; resultsText += "Weight: " + weight_kg + " kg\n"; resultsText += "Age: " + age + " years\n"; resultsText += "Activity Level: " + activityLevel + "\n\n"; resultsText += "Outputs:\n"; resultsText += "BMI: " + bmi + "\n"; resultsText += "Primary Result (BMI): " + primaryResult + "\n"; resultsText += "Healthy Weight Range: " + healthyWeightMin + " kg – " + healthyWeightMax + " kg\n"; resultsText += "Estimated Body Fat %: " + bfp + "%\n"; resultsText += "Basal Metabolic Rate (BMR): " + bmr + " kcal/day\n"; resultsText += "Total Daily Energy Expenditure (TDEE): " + tdee + " kcal/day\n\n"; resultsText += "Key Assumptions:\n"; resultsText += "- BMI ranges are based on standard WHO classifications.\n"; resultsText += "- BMR estimated using Mifflin-St Jeor equation.\n"; resultsText += "- TDEE calculated by multiplying BMR by activity factor.\n"; // Use temporary textarea to copy var textArea = document.createElement("textarea"); textArea.value = resultsText; textArea.style.position = "fixed"; textArea.style.left = "-9999px"; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied to clipboard!' : 'Copying failed!'; // Optional: Show a temporary message to the user var oldMsg = document.getElementById('copyMessage'); if(oldMsg) oldMsg.remove(); var copyMsg = document.createElement('div'); copyMsg.id = 'copyMessage'; copyMsg.textContent = msg; copyMsg.style.cssText = 'position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background-color: var(–primary-color); color: white; padding: 10px 20px; border-radius: 5px; z-index: 1000;'; document.body.appendChild(copyMsg); setTimeout(function(){ copyMsg.remove(); }, 3000); } catch (err) { console.error('Fallback: Oops, unable to copy', err); var oldMsg = document.getElementById('copyMessage'); if(oldMsg) oldMsg.remove(); var copyMsg = document.createElement('div'); copyMsg.id = 'copyMessage'; copyMsg.textContent = 'Copying failed!'; copyMsg.style.cssText = 'position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background-color: #dc3545; color: white; padding: 10px 20px; border-radius: 5px; z-index: 1000;'; document.body.appendChild(copyMsg); setTimeout(function(){ copyMsg.remove(); }, 3000); } document.body.removeChild(textArea); } // Initial calculation on page load with default values document.addEventListener('DOMContentLoaded', function() { resetForm(); // Call resetForm to set defaults and calculate });

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