Weight Watchers Point Allowance Calculator

Weight Watchers Point Allowance Calculator :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-background: #fff; –shadow: 0 2px 5px 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); line-height: 1.6; margin: 0; padding: 0; } .container { max-width: 960px; margin: 20px auto; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } header { background-color: var(–primary-color); color: white; padding: 20px 0; text-align: center; margin-bottom: 20px; border-radius: 8px 8px 0 0; } header h1 { margin: 0; font-size: 2.2em; } .calculator-section { margin-bottom: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); } .calculator-section h2 { color: var(–primary-color); margin-top: 0; text-align: center; margin-bottom: 25px; } .input-group { margin-bottom: 20px; text-align: left; } .input-group label { display: block; margin-bottom: 8px; font-weight: bold; color: var(–primary-color); } .input-group input[type="number"], .input-group select { width: calc(100% – 22px); padding: 10px; border: 1px solid var(–border-color); border-radius: 4px; font-size: 1em; box-sizing: border-box; } .input-group select { cursor: pointer; } .input-group .helper-text { font-size: 0.85em; color: #666; margin-top: 5px; display: block; } .input-group .error-message { color: red; font-size: 0.8em; margin-top: 5px; display: none; /* Hidden by default */ } .button-group { display: flex; justify-content: space-between; margin-top: 25px; gap: 10px; } .button-group button { padding: 12px 20px; border: none; border-radius: 5px; cursor: pointer; font-size: 1em; font-weight: bold; transition: background-color 0.3s ease; flex: 1; } .btn-calculate { background-color: var(–primary-color); color: white; } .btn-calculate:hover { background-color: #003366; } .btn-reset { background-color: #6c757d; color: white; } .btn-reset:hover { background-color: #5a6268; } .results-section { margin-top: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); text-align: center; } .results-section h2 { color: var(–primary-color); margin-top: 0; margin-bottom: 20px; } #primary-result { font-size: 2.5em; font-weight: bold; color: var(–success-color); background-color: #e9ecef; padding: 15px 20px; border-radius: 5px; margin-bottom: 20px; display: inline-block; } .intermediate-results div, .key-assumptions div { margin-bottom: 10px; font-size: 1.1em; } .intermediate-results span, .key-assumptions span { font-weight: bold; color: var(–primary-color); } .formula-explanation { font-size: 0.9em; color: #555; margin-top: 15px; padding-top: 15px; border-top: 1px dashed #ccc; } .chart-container { margin-top: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); text-align: center; } .chart-container h2 { color: var(–primary-color); margin-top: 0; 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); overflow-x: auto; } .table-container h2 { color: var(–primary-color); margin-top: 0; 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 #ddd; } th { background-color: var(–primary-color); color: white; font-weight: bold; } tr:nth-child(even) { background-color: #f2f2f2; } tr:hover { background-color: #e9ecef; } .copy-button { background-color: #17a2b8; color: white; padding: 10px 15px; border: none; border-radius: 5px; cursor: pointer; font-size: 0.9em; margin-top: 15px; transition: background-color 0.3s ease; } .copy-button:hover { background-color: #138496; } .article-content { margin-top: 40px; padding: 30px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } .article-content h2, .article-content h3 { color: var(–primary-color); margin-top: 30px; margin-bottom: 15px; } .article-content h1 { color: var(–primary-color); text-align: center; margin-bottom: 25px; } .article-content p { margin-bottom: 15px; } .article-content ul, .article-content ol { margin-bottom: 15px; padding-left: 25px; } .article-content li { margin-bottom: 8px; } .article-content strong { color: var(–primary-color); } .faq-item { margin-bottom: 15px; } .faq-item h3 { margin-bottom: 5px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; } .faq-item h3::after { content: '+'; font-size: 1.2em; color: var(–primary-color); } .faq-item.open h3::after { content: '-'; } .faq-content { display: none; padding-left: 15px; border-left: 2px solid var(–primary-color); margin-top: 5px; } .internal-links { margin-top: 30px; padding: 25px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } .internal-links h2 { color: var(–primary-color); text-align: center; margin-top: 0; margin-bottom: 20px; } .internal-links ul { list-style: none; padding: 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: #555; margin-top: 5px; } .variable-table table, .example-table table { width: 100%; border-collapse: collapse; margin-top: 15px; } .variable-table th, .variable-table td, .example-table th, .example-table td { padding: 10px; text-align: left; border: 1px solid #ddd; } .variable-table th, .example-table th { background-color: #e9ecef; color: var(–primary-color); } .variable-table td, .example-table td { background-color: var(–card-background); } .variable-table tr:nth-child(even), .example-table tr:nth-child(even) { background-color: #f8f9fa; } .variable-table tr:hover, .example-table tr:hover { background-color: #e2e6ea; } .highlight { background-color: var(–success-color); color: white; padding: 2px 5px; border-radius: 3px; } .error-border { border-color: red !important; }

Weight Watchers Point Allowance Calculator

Your Personalized Daily & Weekly Points Guide

Calculate Your WW Points

Your age influences your metabolism.
Male Female Gender can affect metabolic rate.
Current weight is crucial for point calculation.
Height is used to estimate body composition.
Sedentary (little to 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) Your daily activity impacts your energy needs.
Your target weight for the WW program.

Your WW Points Allowance

Daily Points:
Weekly Points:
Basal Metabolic Rate (BMR): kcal
Formula Used: Your points are calculated using a modified Mifflin-St Jeor equation for BMR, then adjusted for activity level to estimate Total Daily Energy Expenditure (TDEE). Daily Points are derived from TDEE, and Weekly Points are a set bonus.

Points Trend Over Time (Estimated)

Weight Watchers Point Values (Approximate)

Food Type Points (Approx.)
Lean Protein (e.g., Chicken Breast, Fish)0-2
Vegetables0
Fruits0-1
Whole Grains (e.g., Oats, Brown Rice)2-4
Healthy Fats (e.g., Avocado, Nuts)2-5+
Dairy (Low-fat)1-3

Note: These are general estimates. Actual points depend on specific ingredients, preparation methods, and portion sizes.

Understanding Your Weight Watchers Point Allowance Calculator

What is a Weight Watchers Point Allowance Calculator?

A Weight Watchers Point Allowance Calculator is a digital tool designed to estimate the number of daily and weekly Points you'll be allocated on the Weight Watchers (WW) program. WW uses a Points system to guide members toward healthier food choices by assigning a numerical value to foods based on their nutritional content (like calories, saturated fat, sugar, and protein). This calculator helps you get a personalized starting point for your WW journey, taking into account key personal factors.

Who should use it? Anyone considering or currently following a Weight Watchers plan can benefit from this calculator. It's particularly useful for new members trying to understand their initial allowance or existing members looking to re-evaluate their points based on changes in their profile or activity level. It provides a data-driven estimate, though the official WW program will provide the definitive allowance upon joining.

Common misconceptions: A frequent misunderstanding is that the calculator provides an exact, official WW allowance. While it uses established formulas to estimate, the official WW Points are determined by their proprietary algorithm and may vary slightly. Another misconception is that Points are solely based on calories; WW Points also heavily factor in saturated fat, sugar, and protein, promoting a more balanced approach to nutrition.

Weight Watchers Point Allowance Calculator Formula and Mathematical Explanation

The calculation for your Weight Watchers Point Allowance typically involves several steps, aiming to estimate your energy needs and then translate that into a Points budget. While the exact WW algorithm is proprietary, a common approach uses the Mifflin-St Jeor equation to estimate Basal Metabolic Rate (BMR), then adjusts for activity level to find Total Daily Energy Expenditure (TDEE). Daily Points are often derived from TDEE, with additional Weekly Points provided as a buffer.

Step 1: Calculate Basal Metabolic Rate (BMR)

The Mifflin-St Jeor equation is widely used:

  • For Men: BMR = (10 × weight in kg) + (6.25 × height in cm) – (5 × age in years) + 5
  • For Women: BMR = (10 × weight in kg) + (6.25 × height in cm) – (5 × age in years) – 161

This estimates the calories your body burns at rest.

Step 2: Calculate Total Daily Energy Expenditure (TDEE)

TDEE is calculated by multiplying BMR by an activity factor:

TDEE = BMR × Activity Factor

The Activity Factor represents the calories burned through daily activities and exercise.

Step 3: Estimate Daily Points

A common estimation method suggests that Daily Points are roughly equivalent to TDEE divided by a factor (often around 30-35, though this can vary significantly based on WW program updates and individual factors). This translates your estimated energy needs into a Points budget.

Daily Points ≈ TDEE / 30 (This is an approximation; WW's official calculation may differ)

Step 4: Add Weekly Points

WW typically provides a set number of Weekly Points in addition to Daily Points. These are flexible and can be used for treats, larger meals, or saved for specific occasions. The amount can vary based on the specific WW plan or program phase.

Variables Table

Variable Meaning Unit Typical Range
AgeUser's age in yearsYears18 – 80+
GenderUser's biological sexCategoricalMale, Female
WeightUser's current body weightKilograms (kg)30 – 200+
HeightUser's body heightCentimeters (cm)140 – 200+
Activity LevelMultiplier based on physical activityDecimal (0.1 – 0.73)0.1 (Sedentary) to 0.73 (Extra Active)
Goal WeightUser's target body weightKilograms (kg)30 – 150+
BMRCalories burned at restKilocalories (kcal)1000 – 2500+
TDEEEstimated daily calorie needsKilocalories (kcal)1500 – 3500+
Daily PointsEstimated daily WW Points allowancePoints20 – 60+
Weekly PointsEstimated additional weekly WW Points allowancePoints10 – 35+

Practical Examples (Real-World Use Cases)

Let's see how the calculator works for different individuals:

Example 1: Sarah, a 35-year-old moderately active woman

InputValue
Age35 years
GenderFemale
Weight75 kg
Height165 cm
Activity LevelModerately Active (0.37)
Goal Weight65 kg

Calculation Breakdown:

  • BMR (Female) = (10 * 75) + (6.25 * 165) – (5 * 35) – 161 = 750 + 1031.25 – 175 – 161 = 1445.25 kcal
  • TDEE = 1445.25 * 0.37 = 534.74 kcal (This seems low, let's re-evaluate the activity factor application or the base TDEE calculation for WW context. A more standard TDEE multiplier is used. Let's assume a standard TDEE calculation: TDEE = BMR * Activity Multiplier. For Moderately Active, multiplier is ~1.55. TDEE = 1445.25 * 1.55 = 2240.14 kcal)
  • Estimated Daily Points ≈ 2240 / 30 ≈ 75 Points (This is a rough estimate, WW's algorithm is complex)
  • Estimated Weekly Points: Let's assume a standard 10-14 Weekly Points

Result Interpretation: Sarah might be allocated around 75 Daily Points and 10-14 Weekly Points. This provides a framework for her daily food choices, encouraging lean proteins, fruits, and vegetables while managing higher-point foods like fats and processed items.

Example 2: Mark, a 48-year-old very active man

InputValue
Age48 years
GenderMale
Weight90 kg
Height180 cm
Activity LevelVery Active (0.55)
Goal Weight85 kg

Calculation Breakdown:

  • BMR (Male) = (10 * 90) + (6.25 * 180) – (5 * 48) + 5 = 900 + 1125 – 240 + 5 = 1790 kcal
  • TDEE = 1790 * 1.725 (Multiplier for Very Active) = 3088.25 kcal
  • Estimated Daily Points ≈ 3088 / 30 ≈ 103 Points
  • Estimated Weekly Points: Let's assume 14-21 Weekly Points

Result Interpretation: Mark, due to his higher weight and activity level, receives a larger Points allowance, potentially around 103 Daily Points and 14-21 Weekly Points. This reflects his greater energy expenditure.

How to Use This Weight Watchers Point Allowance Calculator

Using the calculator is straightforward:

  1. Enter Your Details: Fill in your current age, gender, weight (in kg), height (in cm), and select your typical activity level from the dropdown menu. Also, input your target goal weight.
  2. Click Calculate: Press the "Calculate Points" button.
  3. Review Results: The calculator will display your estimated Daily Points, Weekly Points, Basal Metabolic Rate (BMR), and Total Daily Energy Expenditure (TDEE). The primary result highlights your estimated Daily Points.
  4. Understand the Formula: Read the brief explanation below the results to understand the basis of the calculation.
  5. Visualize Trends: Check the chart to see an estimated trend of your points allowance based on potential weight loss.
  6. Use the Table: Refer to the approximate point values table for common foods to get a general idea of how different foods fit into your Points budget.
  7. Reset or Copy: Use the "Reset" button to clear the fields and start over. Use the "Copy Results" button to save your calculated values.

Decision-Making Guidance: Use these estimated points as a starting guide. Remember that consistency is key. Focus on nutrient-dense, zero or low-point foods (like vegetables, fruits, lean proteins) to build a foundation for your meals, and use your daily and weekly points strategically for other foods.

Key Factors That Affect Weight Watchers Point Results

Several factors influence your WW Points allowance, both in this calculator's estimation and the official WW program:

  1. Age: Metabolism naturally slows with age, potentially affecting BMR and thus Points.
  2. Gender: Biological differences in body composition and metabolism mean men and women often have different baseline energy needs.
  3. Weight: Higher body weight requires more energy to maintain, influencing BMR and TDEE. As you lose weight, your Points allowance may adjust.
  4. Height: Taller individuals generally have a higher BMR due to a larger surface area and body mass.
  5. Activity Level: This is a significant factor. The more active you are, the more calories you burn, and the higher your TDEE and potentially your Points allowance will be.
  6. Metabolic Rate: Individual metabolic rates can vary due to genetics, muscle mass, and hormonal factors, leading to differences in calorie needs not fully captured by standard formulas.
  7. Program Specifics: WW periodically updates its program and algorithms. The exact calculation for Points can change, and different WW plans (e.g., PersonalPoints) offer further customization.
  8. Health Conditions: Certain medical conditions or medications can affect metabolism and weight, which might influence individual needs beyond standard calculations.

Frequently Asked Questions (FAQ)

What is the difference between Daily and Weekly Points?

Daily Points are your estimated allowance for food consumption each day. Weekly Points are a flexible bonus allowance that you can use throughout the week as needed – for snacks, treats, or larger meals. They offer flexibility in your eating plan.

Does the calculator give my official WW Points?

This calculator provides an *estimate* based on common formulas. Your official WW Points allowance is determined by WW's proprietary algorithm when you officially join or update your profile within their system. The estimate is a helpful guide but may not be exact.

Why are vegetables and fruits often zero or low points?

WW prioritizes nutrient-dense foods. Vegetables and most fruits are low in calories, fat, and sugar, and high in fiber and water, making them filling and healthy. Assigning them zero or low points encourages their consumption.

How do I adjust my Points if I lose weight?

As you lose weight, your BMR and TDEE decrease. You should update your weight in the calculator (or your WW profile) to get a revised Points estimate. WW's system automatically adjusts your allowance as your weight changes.

Can I eat foods not listed in the table?

Absolutely! The table provides general examples. WW's system allows you to look up the Points value for virtually any food or drink using their app or website, based on its specific nutritional information.

What if my activity level changes?

If your activity level increases or decreases significantly, you should adjust the activity level input in the calculator or your WW profile. This will recalculate your TDEE and potentially your Daily Points allowance.

Does goal weight affect my current Points?

In this calculator, the goal weight is primarily for context and doesn't directly alter the *current* Points calculation, which is based on your current stats. However, knowing your goal weight helps you stay motivated and understand the target you're working towards within the WW program.

What does "Sedentary" activity level mean?

A "Sedentary" activity level typically means you have a job that involves mostly sitting, with little to no intentional exercise or physical activity during the week. This has the lowest impact factor on your calorie expenditure.

© 2023 Your Website Name. All rights reserved.

var chartInstance = null; // Global variable to hold chart instance 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.classList.remove('error-border'); if (input.value === "") { errorElement.textContent = "This field cannot be empty."; errorElement.style.display = 'block'; input.classList.add('error-border'); return false; } if (isNaN(value)) { errorElement.textContent = "Please enter a valid number."; errorElement.style.display = 'block'; input.classList.add('error-border'); return false; } if (min !== undefined && value max) { errorElement.textContent = "Value cannot be greater than " + max + "."; errorElement.style.display = 'block'; input.classList.add('error-border'); return false; } return true; } function calculatePoints() { var isValid = true; isValid &= validateInput('age', 'ageError', 1, 120); isValid &= validateInput('weightKg', 'weightKgError', 1, 500); isValid &= validateInput('heightCm', 'heightCmError', 50, 250); isValid &= validateInput('goalWeightKg', 'goalWeightKgError', 1, 500); if (!isValid) { return; } var age = parseFloat(document.getElementById('age').value); var gender = document.getElementById('gender').value; var weightKg = parseFloat(document.getElementById('weightKg').value); var heightCm = parseFloat(document.getElementById('heightCm').value); var activityLevel = parseFloat(document.getElementById('activityLevel').value); var goalWeightKg = parseFloat(document.getElementById('goalWeightKg').value); var bmr = 0; if (gender === 'male') { bmr = (10 * weightKg) + (6.25 * heightCm) – (5 * age) + 5; } else { bmr = (10 * weightKg) + (6.25 * heightCm) – (5 * age) – 161; } bmr = Math.round(bmr); // Using a standard TDEE multiplier approach for better results var tdee = 0; var activityMultiplier = 1.2; // Default for Sedentary if (activityLevel === 0.1) activityMultiplier = 1.2; // Sedentary else if (activityLevel === 0.24) activityMultiplier = 1.375; // Lightly Active else if (activityLevel === 0.37) activityMultiplier = 1.55; // Moderately Active else if (activityLevel === 0.55) activityMultiplier = 1.725; // Very Active else if (activityLevel === 0.73) activityMultiplier = 1.9; // Extra Active tdee = bmr * activityMultiplier; tdee = Math.round(tdee); // WW Points Estimation – This is a simplified approximation. // WW's actual algorithm is proprietary and considers more factors. // A common estimation is TDEE / ~30-35 for daily points, plus weekly points. var estimatedDailyPoints = Math.round(tdee / 30); // Approximation var estimatedWeeklyPoints = 0; // Assigning a baseline weekly points range, can be adjusted if (activityLevel <= 0.24) { // Sedentary to Lightly Active estimatedWeeklyPoints = 10; } else if (activityLevel <= 0.37) { // Moderately Active estimatedWeeklyPoints = 12; } else { // Very Active to Extra Active estimatedWeeklyPoints = 14; } // Adjust weekly points slightly based on goal weight proximity or other factors if needed, but keeping it simple here. // Ensure minimum points if (estimatedDailyPoints < 20) estimatedDailyPoints = 20; if (estimatedWeeklyPoints < 7) estimatedWeeklyPoints = 7; document.getElementById('primary-result').textContent = estimatedDailyPoints + " Daily Points"; document.getElementById('daily-points').getElementsByTagName('span')[0].textContent = estimatedDailyPoints; document.getElementById('weekly-points').getElementsByTagName('span')[0].textContent = estimatedWeeklyPoints; document.getElementById('bmr').getElementsByTagName('span')[0].textContent = bmr; updateChart(estimatedDailyPoints, estimatedWeeklyPoints, goalWeightKg); } function resetForm() { document.getElementById('age').value = 30; document.getElementById('gender').value = 'female'; document.getElementById('weightKg').value = 70; document.getElementById('heightCm').value = 165; document.getElementById('activityLevel').value = 0.37; // Moderately Active document.getElementById('goalWeightKg').value = 60; // Clear errors document.getElementById('ageError').textContent = ''; document.getElementById('weightKgError').textContent = ''; document.getElementById('heightCmError').textContent = ''; document.getElementById('goalWeightKgError').textContent = ''; document.getElementById('age').classList.remove('error-border'); document.getElementById('weightKg').classList.remove('error-border'); document.getElementById('heightCm').classList.remove('error-border'); document.getElementById('goalWeightKg').classList.remove('error-border'); calculatePoints(); // Recalculate with default values } function copyResults() { var dailyPoints = document.getElementById('daily-points').getElementsByTagName('span')[0].textContent; var weeklyPoints = document.getElementById('weekly-points').getElementsByTagName('span')[0].textContent; var bmr = document.getElementById('bmr').getElementsByTagName('span')[0].textContent; var primaryResult = document.getElementById('primary-result').textContent; var age = document.getElementById('age').value; var gender = document.getElementById('gender').value; var weightKg = document.getElementById('weightKg').value; var heightCm = document.getElementById('heightCm').value; var activityLevelText = document.getElementById('activityLevel').options[document.getElementById('activityLevel').selectedIndex].text; var goalWeightKg = document.getElementById('goalWeightKg').value; var assumptions = "Assumptions:\n"; assumptions += "- Age: " + age + "\n"; assumptions += "- Gender: " + gender + "\n"; assumptions += "- Current Weight: " + weightKg + " kg\n"; assumptions += "- Height: " + heightCm + " cm\n"; assumptions += "- Activity Level: " + activityLevelText + "\n"; assumptions += "- Goal Weight: " + goalWeightKg + " kg\n"; var resultText = "Weight Watchers Points Allowance:\n"; resultText += primaryResult + "\n"; resultText += "Daily Points: " + dailyPoints + "\n"; resultText += "Weekly Points: " + weeklyPoints + "\n"; resultText += "Basal Metabolic Rate (BMR): " + bmr + " kcal\n\n"; resultText += assumptions; // Use a temporary textarea to copy text var textArea = document.createElement("textarea"); textArea.value = resultText; 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!' : 'Copy failed'; alert(msg); } catch (err) { alert('Oops, unable to copy'); } document.body.removeChild(textArea); } function updateChart(dailyPoints, weeklyPoints, goalWeight) { var canvas = document.getElementById('pointsChart'); var ctx = canvas.getContext('2d'); // Clear previous chart if it exists if (chartInstance) { chartInstance.destroy(); } // Simulate points decrease as weight approaches goal var weightLossPointsDecrease = []; var simulatedWeights = []; var currentWeight = parseFloat(document.getElementById('weightKg').value); var weightStep = (currentWeight – goalWeight) / 10; // 10 steps for simulation if (weightStep <= 0) weightStep = 1; // Ensure at least one step if goal is met or exceeded for (var i = 0; i <= 10; i++) { var simulatedWeight = currentWeight – (i * weightStep); if (simulatedWeight < goalWeight) simulatedWeight = goalWeight; // Don't go below goal simulatedWeights.push(simulatedWeight.toFixed(1)); // Recalculate estimated points for simulated weight (simplified) var simulatedBmr = 0; var age = parseFloat(document.getElementById('age').value); var gender = document.getElementById('gender').value; var heightCm = parseFloat(document.getElementById('heightCm').value); var activityLevel = parseFloat(document.getElementById('activityLevel').value); if (gender === 'male') { simulatedBmr = (10 * simulatedWeight) + (6.25 * heightCm) – (5 * age) + 5; } else { simulatedBmr = (10 * simulatedWeight) + (6.25 * heightCm) – (5 * age) – 161; } simulatedBmr = Math.round(simulatedBmr); var simulatedTdee = simulatedBmr * getActivityMultiplier(activityLevel); simulatedTdee = Math.round(simulatedTdee); var simulatedDailyPoints = Math.round(simulatedTdee / 30); if (simulatedDailyPoints < 20) simulatedDailyPoints = 20; weightLossPointsDecrease.push(simulatedDailyPoints); } chartInstance = new Chart(ctx, { type: 'line', data: { labels: simulatedWeights.map(function(w) { return w + ' kg'; }), // Labels are simulated weights datasets: [{ label: 'Estimated Daily Points', data: weightLossPointsDecrease, borderColor: 'var(–primary-color)', backgroundColor: 'rgba(0, 74, 153, 0.2)', fill: true, tension: 0.1 }, { label: 'Current Daily Points', data: Array(simulatedWeights.length).fill(dailyPoints), // Constant line for current points borderColor: 'var(–success-color)', borderDash: [5, 5], backgroundColor: 'rgba(40, 167, 69, 0.1)', fill: false, tension: 0 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Points' } }, x: { title: { display: true, text: 'Simulated Weight' } } }, plugins: { title: { display: true, text: 'Estimated Daily Points Trend with Weight Loss' }, legend: { position: 'top', } } } }); } function getActivityMultiplier(activityLevelValue) { if (activityLevelValue === 0.1) return 1.2; // Sedentary else if (activityLevelValue === 0.24) return 1.375; // Lightly Active else if (activityLevelValue === 0.37) return 1.55; // Moderately Active else if (activityLevelValue === 0.55) return 1.725; // Very Active else if (activityLevelValue === 0.73) return 1.9; // Extra Active return 1.2; // Default } function toggleFaq(element) { var faqItem = element.closest('.faq-item'); faqItem.classList.toggle('open'); var faqContent = faqItem.querySelector('.faq-content'); if (faqItem.classList.contains('open')) { faqContent.style.display = 'block'; } else { faqContent.style.display = 'none'; } } // Initial calculation on page load document.addEventListener('DOMContentLoaded', function() { resetForm(); // Set default values and calculate // Add event listeners for real-time updates (optional, but good UX) var inputs = document.querySelectorAll('#calculatorForm input, #calculatorForm select'); for (var i = 0; i < inputs.length; i++) { inputs[i].addEventListener('input', calculatePoints); inputs[i].addEventListener('change', calculatePoints); } }); // Chart.js library inclusion (required for the chart) // In a real-world scenario, you'd include this via a CDN script tag in the // For this self-contained HTML, we'll assume it's available or add a placeholder comment. // NOTE: For this output, Chart.js is NOT included. You MUST add it separately. // Example CDN: // If Chart.js is not included, the chart will not render.

Leave a Comment