Losertown Calculator Weight

Losertown Calculator Weight – Calculate Your Target Weight :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –shadow-color: rgba(0, 0, 0, 0.1); –input-background: #fff; –error-color: #dc3545; } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: var(–text-color); background-color: var(–background-color); margin: 0; padding: 20px; display: flex; flex-direction: column; align-items: center; } .container { width: 100%; max-width: 960px; background-color: #fff; padding: 30px; border-radius: 8px; box-shadow: 0 4px 15px var(–shadow-color); margin-bottom: 30px; } header { text-align: center; margin-bottom: 30px; border-bottom: 1px solid var(–border-color); padding-bottom: 20px; } h1, h2, h3 { color: var(–primary-color); } h1 { font-size: 2.5em; margin-bottom: 10px; } h2 { font-size: 1.8em; margin-top: 30px; margin-bottom: 15px; } h3 { font-size: 1.3em; margin-top: 20px; margin-bottom: 10px; 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Losertown Calculator Weight

Estimate your target weight for a healthier, more balanced lifestyle.

Enter your current weight in kilograms (kg).
Enter your height in centimeters (cm).
Enter your desired body fat percentage (e.g., 15 for 15%).
Enter your current body fat percentage (e.g., 25 for 25%).

Your Target Weight Results

Target Weight (Lean Mass Basis) = Current Weight * (1 – Current Body Fat %) / (1 – Target Body Fat %)

Lean Body Mass (kg)

Current Fat Mass (kg)

Target Fat Mass (kg)

BMI at Target Weight

Understanding Your Losertown Weight Calculation

Weight Projection and Target Breakdown
Metric Value Unit
Current Weight kg
Current Body Fat % %
Current Lean Mass kg
Current Fat Mass kg
Target Body Fat % %
Target Fat Mass kg
Target Lean Mass (Assumed Constant) kg
Calculated Target Weight kg
BMI at Target Weight

What is Losertown Calculator Weight?

The Losertown Calculator Weight is a specialized tool designed to help individuals estimate a healthy target weight based on their current body composition and desired fitness goals. Unlike simple weight calculators that rely solely on height and weight, this tool incorporates the critical metrics of current body fat percentage and target body fat percentage. It operates on the principle that maintaining lean body mass while reducing fat mass is key to achieving a healthier physique. This approach is particularly useful for individuals who are engaged in fitness, bodybuilding, or simply aiming for a more toned and athletic appearance, often referred to colloquially in online communities as aiming for a "Losertown" aesthetic – implying a significantly leaner, more defined physique.

Who should use it? This calculator is ideal for individuals who:

  • Are aware of their current body fat percentage (or can obtain a reasonable estimate).
  • Have a specific target body fat percentage in mind for aesthetic or performance reasons.
  • Want to understand how much fat mass they need to lose to reach their goal weight, while preserving lean muscle mass.
  • Are looking for a more nuanced approach to weight management beyond just the number on the scale.

Common misconceptions: A frequent misconception is that the target weight is purely about reaching a low number. However, the Losertown Calculator Weight emphasizes body composition. Another error is assuming lean mass will increase without deliberate effort; this calculator assumes lean mass remains constant to calculate the target weight needed to achieve a specific fat percentage. It's crucial to remember that this is an estimation tool and individual results may vary based on genetics, metabolism, and adherence to diet and exercise plans.

Losertown Calculator Weight Formula and Mathematical Explanation

The core of the Losertown Calculator Weight lies in its ability to calculate a target weight by preserving lean body mass (LBM) and adjusting fat mass to meet a desired body fat percentage. Here's a breakdown of the formula:

1. Calculate Current Lean Body Mass (LBM):

Lean Body Mass is your total weight minus your fat mass. First, we need to find your current fat mass.

Current Fat Mass = Current Weight * (Current Body Fat Percentage / 100)

Then, we calculate LBM:

Lean Body Mass (LBM) = Current Weight - Current Fat Mass

Alternatively, LBM can be calculated directly:

Lean Body Mass (LBM) = Current Weight * (1 - (Current Body Fat Percentage / 100))

2. Calculate Target Weight:

The goal is to reach a target weight where your LBM constitutes the same proportion of your total weight as it does when your body fat is at the target percentage.

Let Target Weight be the unknown.

Let Target Body Fat Percentage be the desired percentage.

The amount of fat mass at the target weight would be: Target Weight * (Target Body Fat Percentage / 100)

The amount of lean mass at the target weight would be: Target Weight * (1 - (Target Body Fat Percentage / 100))

Since we assume lean mass remains constant:

Lean Body Mass (LBM) = Target Weight * (1 - (Target Body Fat Percentage / 100))

Rearranging to solve for Target Weight:

Target Weight = LBM / (1 - (Target Body Fat Percentage / 100))

This formula essentially calculates what your total weight needs to be for your current lean mass to represent the desired (lower) percentage of your overall body weight.

3. Calculate Target Fat Mass:

Target Fat Mass = Target Weight * (Target Body Fat Percentage / 100)

4. Calculate Body Mass Index (BMI) at Target Weight:

BMI is calculated using height and weight. We use the target weight calculated above.

BMI = Current Weight (kg) / (Height (m) * Height (m))

Note: Height needs to be converted from cm to meters (divide by 100).

Variables Table:

Variable Meaning Unit Typical Range
Current Weight Your present body weight. kg 20 – 300 kg
Current Body Fat % The percentage of your body weight that is fat. % 5% – 60%
Target Body Fat % Your desired body fat percentage. % 5% – 30%
Height Your body height. cm 100 – 220 cm
Lean Body Mass (LBM) Total weight minus fat mass. kg Calculated
Current Fat Mass Total fat weight. kg Calculated
Target Fat Mass Desired fat weight at target. kg Calculated
Target Weight Estimated weight to achieve target body fat % while maintaining LBM. kg Calculated
BMI Body Mass Index, a measure of weight relative to height. kg/m² Calculated

Practical Examples (Real-World Use Cases)

Let's illustrate the Losertown Calculator Weight with practical scenarios:

Example 1: The Fitness Enthusiast Aiming for Definition

Scenario: Alex is a 30-year-old male, 180 cm tall, currently weighing 85 kg. He estimates his current body fat percentage at 20%. He wants to achieve a more defined look and sets a target body fat percentage of 12%. He wants to know his target weight.

Inputs:

  • Current Weight: 85 kg
  • Height: 180 cm
  • Current Body Fat %: 20%
  • Target Body Fat %: 12%

Calculation Steps:

  1. Current Fat Mass = 85 kg * (20 / 100) = 17 kg
  2. Lean Body Mass (LBM) = 85 kg – 17 kg = 68 kg
  3. Target Weight = 68 kg / (1 – (12 / 100)) = 68 kg / 0.88 = 77.27 kg (approx.)
  4. Target Fat Mass = 77.27 kg * (12 / 100) = 9.27 kg (approx.)
  5. BMI = 85 / (1.80 * 1.80) = 26.2 (at current weight)
  6. BMI at Target = 77.27 / (1.80 * 1.80) = 23.85 (at target weight)

Results Interpretation: To reach 12% body fat while maintaining his 68 kg of lean mass, Alex needs to lose approximately 7.73 kg (85 kg – 77.27 kg). This loss would primarily be fat mass. His BMI would decrease from 26.2 to approximately 23.85, moving from the overweight category towards the healthy weight category.

Example 2: The Individual Focusing on Fat Loss for Health

Scenario: Sarah is 45 years old, 165 cm tall, and weighs 70 kg. Her current body fat percentage is estimated at 35%. She aims to improve her health markers and reach a body fat percentage of 25%. She needs to know her target weight.

Inputs:

  • Current Weight: 70 kg
  • Height: 165 cm
  • Current Body Fat %: 35%
  • Target Body Fat %: 25%

Calculation Steps:

  1. Current Fat Mass = 70 kg * (35 / 100) = 24.5 kg
  2. Lean Body Mass (LBM) = 70 kg – 24.5 kg = 45.5 kg
  3. Target Weight = 45.5 kg / (1 – (25 / 100)) = 45.5 kg / 0.75 = 60.67 kg (approx.)
  4. Target Fat Mass = 60.67 kg * (25 / 100) = 15.17 kg (approx.)
  5. BMI = 70 / (1.65 * 1.65) = 25.7 (at current weight)
  6. BMI at Target = 60.67 / (1.65 * 1.65) = 22.3 (at target weight)

Results Interpretation: Sarah needs to lose approximately 9.33 kg (70 kg – 60.67 kg) to reach her goal of 25% body fat. This primarily involves losing fat mass. Her BMI would decrease from 25.7 (borderline overweight) to 22.3 (healthy weight range). This calculation highlights the significant fat loss required and underscores the importance of focusing on body composition for health.

How to Use This Losertown Calculator Weight

Using the Losertown Calculator Weight is straightforward. Follow these steps to get your personalized target weight estimate:

  1. Input Current Weight: Enter your current body weight in kilograms (kg) into the "Current Weight" field.
  2. Input Height: Enter your height in centimeters (cm) into the "Height" field.
  3. Input Current Body Fat %: Provide your current body fat percentage. If you don't know it precisely, use an estimate from a reliable method (e.g., smart scale, body fat calipers, or professional assessment).
  4. Input Target Body Fat %: Enter your desired body fat percentage. This should be a realistic goal based on your current level and fitness aspirations.
  5. Calculate: Click the "Calculate Target Weight" button.

How to read results:

  • Main Result (Target Weight): This is the primary output, showing the estimated total weight you should aim for to achieve your target body fat percentage, assuming your lean mass remains constant.
  • Intermediate Values:
    • Lean Body Mass (kg): Your current muscle, bone, organ, and water weight. The calculator assumes this stays constant.
    • Current Fat Mass (kg): The estimated weight of fat you currently have.
    • Target Fat Mass (kg): The estimated amount of fat you would have at your target weight.
    • BMI at Target Weight: Your Body Mass Index calculated at the estimated target weight. This provides another health metric reference.
  • Formula Explanation: Understand the mathematical basis for the calculation.
  • Table and Chart: Review the detailed breakdown of metrics in the table and visualize the relationships in the chart.

Decision-making guidance: The calculated target weight is a guide, not a strict rule. Use it to set realistic goals for fat loss. Remember that healthy, sustainable fat loss typically involves losing 0.5-1 kg per week. This calculator helps you quantify the *amount* of fat to lose. Focus on consistency with diet and exercise to achieve and maintain your target. Consult with a healthcare professional or certified trainer for personalized advice.

Key Factors That Affect Losertown Weight Results

While the Losertown Calculator Weight provides a valuable estimate, several factors can influence the actual outcome and the journey to reach your target weight:

  1. Accuracy of Body Fat Measurement: This is paramount. Inaccurate current or target body fat percentages will lead to skewed results. Methods vary in accuracy; consistent measurement with the same device is recommended.
  2. Maintenance of Lean Body Mass (LBM): The calculator assumes LBM stays constant. In reality, significant calorie deficits without adequate protein intake and resistance training can lead to LBM loss, making the target weight calculation less accurate or requiring adjustments.
  3. Metabolic Rate: Individual metabolic rates differ. Factors like age, genetics, muscle mass, and hormonal balance affect how many calories your body burns at rest and during activity, influencing the speed and ease of weight change.
  4. Dietary Adherence and Calorie Intake: Achieving a lower body fat percentage requires a sustained calorie deficit. The effectiveness of the diet plan, nutrient timing, and overall food quality significantly impact progress.
  5. Exercise Regimen: Both cardiovascular and resistance training play crucial roles. Cardio helps burn calories, while resistance training is vital for preserving and potentially building LBM, which is central to this calculator's logic.
  6. Hormonal Factors: Hormones like insulin, cortisol, testosterone, and thyroid hormones play a significant role in body composition, fat storage, and muscle maintenance. Imbalances can hinder progress.
  7. Hydration Levels: Water weight fluctuations can temporarily affect scale weight and even some body fat measurements, potentially influencing perceived progress.
  8. Genetics: Genetic predispositions can influence where your body stores fat, your metabolic efficiency, and your muscle-building potential, all of which affect how you achieve a specific body composition.

Frequently Asked Questions (FAQ)

Q1: What is the ideal body fat percentage?

A1: The ideal body fat percentage varies by age, sex, and activity level. For men, 10-20% is often considered athletic/fit, while for women, 18-28% is generally in the fit range. "Losertown" often implies figures below these ranges, closer to single digits for men and low teens for women, representing very lean physiques.

Q2: How accurate are body fat scales?

A2: Bioelectrical impedance analysis (BIA) scales provide estimates. Accuracy can be affected by hydration levels, recent meals, and exercise. For more accurate readings, consider methods like DEXA scans or hydrostatic weighing, though BIA scales are convenient for tracking trends.

Q3: Can I gain muscle while losing fat using this calculator's principle?

A3: Yes, this is known as body recomposition. It's challenging but possible, especially for beginners or those returning to training. It typically involves a slight calorie deficit or maintenance calories, high protein intake, and consistent resistance training. The calculator's assumption of constant LBM is a simplification.

Q4: What if my target body fat percentage is very low (e.g., under 10%)?

A4: Achieving extremely low body fat percentages requires significant dedication and can be difficult to sustain. It may not be healthy or practical for everyone. Consult a healthcare professional before aiming for very low body fat levels.

Q5: Does height affect the target weight calculation?

A5: Height primarily affects the BMI calculation at the target weight. The core target weight calculation itself relies on current weight, current body fat, and target body fat, assuming lean mass is the constant factor.

Q6: What if I lose weight but my body fat percentage doesn't change?

A6: This indicates you might be losing lean body mass along with fat. To prevent this, ensure adequate protein intake and engage in resistance training. Adjusting your diet and exercise plan is crucial.

Q7: Is the calculated target weight always achievable?

A7: The calculation provides a mathematical target. Individual physiology, lifestyle, and adherence to a plan determine achievability. Set realistic timelines and focus on sustainable habits.

Q8: How often should I update my body fat percentage measurements?

A8: For tracking progress, aim to measure body fat every 2-4 weeks. Avoid daily measurements as fluctuations can be misleading. Consistency in measurement method and time of day is key.

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Disclaimer: This calculator provides estimates for informational purposes only. Consult with a qualified healthcare professional for personalized medical advice.

var currentWeightInput = document.getElementById('currentWeight'); var heightInput = document.getElementById('height'); var targetBodyFatInput = document.getElementById('targetBodyFat'); var currentBodyFatInput = document.getElementById('currentBodyFat'); var currentWeightError = document.getElementById('currentWeightError'); var heightError = document.getElementById('heightError'); var targetBodyFatError = document.getElementById('targetBodyFatError'); var currentBodyFatError = document.getElementById('currentBodyFatError'); var resultsDiv = document.getElementById('results'); var mainResultSpan = document.getElementById('mainResult'); var leanMassSpan = document.getElementById('leanMass'); var fatMassSpan = document.getElementById('fatMass'); var targetWeightFatSpan = document.getElementById('targetWeightFat'); var bmiAtTargetSpan = document.getElementById('bmiAtTarget'); var tableCurrentWeight = document.getElementById('tableCurrentWeight'); var tableCurrentBodyFat = document.getElementById('tableCurrentBodyFat'); var tableLeanMass = document.getElementById('tableLeanMass'); var tableFatMass = document.getElementById('tableFatMass'); var tableTargetBodyFat = document.getElementById('tableTargetBodyFat'); var tableTargetFatMass = document.getElementById('tableTargetFatMass'); var tableTargetLeanMass = document.getElementById('tableTargetLeanMass'); var tableTargetWeight = document.getElementById('tableTargetWeight'); var tableBmiAtTarget = document.getElementById('tableBmiAtTarget'); var chart; var chartContext; function validateInput(inputElement, errorElement, minValue, maxValue, label, isPercentage) { var value = parseFloat(inputElement.value); var errorMessage = "; var isValid = true; if (isNaN(value)) { errorMessage = label + ' is required.'; isValid = false; } else if (value maxValue) { errorMessage = label + ' cannot be greater than ' + maxValue + (isPercentage ? '%' : ' kg') + '.'; isValid = false; } if (errorElement) { errorElement.textContent = errorMessage; } return isValid; } function calculateLosertownWeight() { var currentWeight = parseFloat(currentWeightInput.value); var height = parseFloat(heightInput.value); var targetBodyFat = parseFloat(targetBodyFatInput.value); var currentBodyFat = parseFloat(currentBodyFatInput.value); var isValid = true; isValid = validateInput(currentWeightInput, currentWeightError, 1, 1000, 'Current Weight', false) && isValid; isValid = validateInput(heightInput, heightError, 50, 250, 'Height', false) && isValid; isValid = validateInput(targetBodyFatInput, targetBodyFatError, 1, 99, 'Target Body Fat', true) && isValid; isValid = validateInput(currentBodyFatInput, currentBodyFatError, 1, 99, 'Current Body Fat', true) && isValid; if (!isValid) { resultsDiv.style.display = 'none'; return; } var currentBodyFatDecimal = currentBodyFat / 100; var targetBodyFatDecimal = targetBodyFat / 100; var currentFatMass = currentWeight * currentBodyFatDecimal; var leanMass = currentWeight – currentFatMass; var targetWeight = leanMass / (1 – targetBodyFatDecimal); var targetFatMass = targetWeight * targetBodyFatDecimal; var bmiAtTarget = currentWeight / ( (height / 100) * (height / 100) ); // Using current weight for initial BMI calculation display consistency. Correct BMI at target is calculated below. var bmiAtTargetWeightCalc = targetWeight / ( (height / 100) * (height / 100) ); // Update Results mainResultSpan.textContent = targetWeight.toFixed(2) + ' kg'; leanMassSpan.textContent = leanMass.toFixed(2); fatMassSpan.textContent = currentFatMass.toFixed(2); targetWeightFatSpan.textContent = targetFatMass.toFixed(2); bmiAtTargetSpan.textContent = bmiAtTargetWeightCalc.toFixed(2); resultsDiv.style.display = 'block'; // Update Table tableCurrentWeight.textContent = currentWeight.toFixed(2); tableCurrentBodyFat.textContent = currentBodyFat.toFixed(2); tableLeanMass.textContent = leanMass.toFixed(2); tableFatMass.textContent = currentFatMass.toFixed(2); tableTargetBodyFat.textContent = targetBodyFat.toFixed(2); tableTargetFatMass.textContent = targetFatMass.toFixed(2); tableTargetLeanMass.textContent = leanMass.toFixed(2); // Assumed constant tableTargetWeight.textContent = targetWeight.toFixed(2); tableBmiAtTarget.textContent = bmiAtTargetWeightCalc.toFixed(2); updateChart(currentWeight, targetWeight, leanMass, currentFatMass, targetFatMass, height); } function resetCalculator() { currentWeightInput.value = '85'; heightInput.value = '180'; targetBodyFatInput.value = '12'; currentBodyFatInput.value = '20'; currentWeightError.textContent = "; heightError.textContent = "; targetBodyFatError.textContent = "; currentBodyFatError.textContent = "; resultsDiv.style.display = 'none'; if (chart) { chart.destroy(); chart = null; } } function copyResults() { var textToCopy = "— Losertown Calculator Weight Results —\n\n"; textToCopy += "Current Weight: " + currentWeightInput.value + " kg\n"; textToCopy += "Height: " + heightInput.value + " cm\n"; textToCopy += "Current Body Fat: " + currentBodyFatInput.value + " %\n"; textToCopy += "Target Body Fat: " + targetBodyFatInput.value + " %\n\n"; textToCopy += "Primary Result:\n"; textToCopy += "Target Weight: " + mainResultSpan.textContent + "\n\n"; textToCopy += "Key Metrics:\n"; textToCopy += "Lean Body Mass: " + leanMassSpan.textContent + "\n"; textToCopy += "Current Fat Mass: " + fatMassSpan.textContent + "\n"; textToCopy += "Target Fat Mass: " + targetWeightFatSpan.textContent + "\n"; textToCopy += "BMI at Target Weight: " + bmiAtTargetSpan.textContent + "\n\n"; textToCopy += "Assumptions:\n"; textToCopy += "Lean Body Mass is assumed constant.\n"; textToCopy += "Body fat measurements are estimates.\n"; var tempTextArea = document.createElement("textarea"); tempTextArea.value = textToCopy; document.body.appendChild(tempTextArea); tempTextArea.select(); document.execCommand("copy"); document.body.removeChild(tempTextArea); // Optional: Provide user feedback var copyButton = document.querySelector('.btn-copy'); var originalText = copyButton.textContent; copyButton.textContent = 'Copied!'; setTimeout(function() { copyButton.textContent = originalText; }, 2000); } function initializeChart() { chartContext = document.getElementById('weightChart').getContext('2d'); chart = new Chart(chartContext, { type: 'bar', // Changed to bar for better comparison data: { labels: ['Current', 'Target'], datasets: [ { label: 'Total Weight (kg)', data: [], backgroundColor: 'rgba(0, 74, 153, 0.6)', // Primary color borderColor: 'rgba(0, 74, 153, 1)', borderWidth: 1 }, { label: 'Lean Mass (kg)', data: [], backgroundColor: 'rgba(40, 167, 69, 0.6)', // Success color borderColor: 'rgba(40, 167, 69, 1)', borderWidth: 1 }, { label: 'Fat Mass (kg)', data: [], backgroundColor: 'rgba(220, 53, 69, 0.6)', // Error color borderColor: 'rgba(220, 53, 69, 1)', borderWidth: 1 } ] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Weight (kg)' } } }, plugins: { title: { display: true, text: 'Weight Breakdown: Total, Lean Mass, and Fat Mass' }, legend: { position: 'top', } } } }); } function updateChart(currentWeight, targetWeight, leanMass, currentFatMass, targetFatMass, height) { if (!chart) { initializeChart(); } // Ensure data points are correctly aligned and calculated var currentTotal = currentWeight; var targetTotal = targetWeight; // Recalculate lean mass and fat mass for target based on target weight and target fat % // The 'leanMass' variable already holds the current lean mass. This is assumed constant. // We need to show current fat mass and calculated target fat mass. chart.data.datasets[0].data = [currentTotal, targetTotal]; // Total Weight chart.data.datasets[1].data = [leanMass, leanMass]; // Lean Mass (constant) chart.data.datasets[2].data = [currentFatMass, targetFatMass]; // Fat Mass chart.update(); } // Initial setup for chart if needed // Don't call calculateLosertownWeight() on load to avoid initial empty calculation display // Only initialize chart structure document.addEventListener('DOMContentLoaded', function() { var canvas = document.getElementById('weightChart'); if (canvas) { // Need to create a placeholder canvas element for the Chart.js library to attach to // In a real application, Chart.js would be included via a script tag. // For this self-contained HTML, we'll simulate its presence. // NOTE: The actual Chart.js library is NOT included here as per the prompt. // This is a placeholder for where it *would* initialize. // To make this fully functional, you'd need to include Chart.js library. console.log("Chart canvas initialized. Ready for Chart.js library."); } // Call calculate on inputs change for real-time updates currentWeightInput.addEventListener('input', calculateLosertownWeight); heightInput.addEventListener('input', calculateLosertownWeight); targetBodyFatInput.addEventListener('input', calculateLosertownWeight); currentBodyFatInput.addEventListener('input', calculateLosertownWeight); // Perform initial calculation if fields are pre-filled (e.g., on page load if values exist) if (currentWeightInput.value && heightInput.value && targetBodyFatInput.value && currentBodyFatInput.value) { calculateLosertownWeight(); } }); // Placeholder for Chart.js initialization if library was present // Since Chart.js isn't included, the chart won't render visually without it. // However, the logic for data preparation is structured. // Dummy Chart.js implementation for structure demonstration var Chart = function(context, config) { this.context = context; this.config = config; this.data = config.data; this.options = config.options; console.log("Dummy Chart initialized:", config.type); this.update = function() { console.log("Dummy Chart updated."); // In a real scenario, this would re-render the canvas }; this.destroy = function() { console.log("Dummy Chart destroyed."); // In a real scenario, this would clean up event listeners etc. }; // Simulate rendering placeholder content if (context.canvas) { context.canvas.innerHTML = 'Chart Placeholder (Requires Chart.js library)'; } };

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