Weight Watchers Calculate My Points

Weight Watchers Points Calculator: Calculate Your SmartPoints :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-background: #ffffff; –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 { text-align: center; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid var(–border-color); } header h1 { color: var(–primary-color); margin-bottom: 10px; } .calculator-section { margin-bottom: 40px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: #fdfdfd; } .calculator-section h2 { color: var(–primary-color); text-align: center; margin-bottom: 25px; } .input-group { margin-bottom: 20px; position: relative; } .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% – 24px); /* Account for padding */ padding: 10px 12px; border: 1px solid var(–border-color); border-radius: 4px; box-sizing: border-box; font-size: 1rem; transition: border-color 0.3s ease; } .input-group input[type="number"]:focus, .input-group select:focus { border-color: var(–primary-color); outline: none; } .input-group .helper-text { font-size: 0.85em; color: #666; margin-top: 5px; display: block; } .error-message { color: #dc3545; font-size: 0.85em; margin-top: 8px; display: none; /* Hidden by default */ } .error-message.visible { display: block; } .button-group { text-align: center; margin-top: 30px; display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; } .button-group button, .button-group input[type="button"] { padding: 12px 25px; border: none; border-radius: 5px; cursor: pointer; font-size: 1rem; font-weight: bold; transition: background-color 0.3s ease, transform 0.2s ease; } .button-group button.primary, .button-group input[type="button"].primary { background-color: var(–primary-color); color: white; } .button-group button.primary:hover, .button-group input[type="button"].primary:hover { background-color: #003366; transform: translateY(-2px); } .button-group button.secondary, .button-group input[type="button"].secondary { background-color: #6c757d; color: white; } .button-group button.secondary:hover, .button-group input[type="button"].secondary:hover { background-color: #5a6268; transform: translateY(-2px); } .button-group button.success, .button-group input[type="button"].success { background-color: var(–success-color); color: white; } .button-group button.success:hover, .button-group input[type="button"].success:hover { background-color: #218838; transform: translateY(-2px); } .results-display { margin-top: 30px; padding: 25px; border: 1px dashed var(–primary-color); border-radius: 8px; background-color: #eef7ff; text-align: center; } .results-display h3 { color: var(–primary-color); margin-bottom: 20px; } .main-result { font-size: 2.5em; font-weight: bold; color: var(–success-color); margin-bottom: 15px; background-color: var(–card-background); padding: 15px; border-radius: 5px; display: inline-block; box-shadow: inset 0 0 10px rgba(40, 167, 69, 0.3); } .intermediate-results { margin-top: 20px; display: flex; justify-content: space-around; flex-wrap: wrap; gap: 15px; } .intermediate-results div { text-align: center; background-color: var(–card-background); padding: 10px 15px; border-radius: 5px; border: 1px solid #eee; } .intermediate-results span { font-weight: bold; display: block; font-size: 1.3em; color: var(–primary-color); } .formula-explanation { font-size: 0.9em; color: #555; margin-top: 15px; text-align: left; } .chart-container, .table-container { margin-top: 40px; padding: 25px; background-color: var(–card-background); border: 1px solid var(–border-color); border-radius: 8px; } .chart-container h3, .table-container h3 { color: var(–primary-color); text-align: center; margin-bottom: 20px; } canvas { display: block; margin: 0 auto; max-width: 100%; height: auto !important; /* Ensure canvas scales */ } table { width: 100%; border-collapse: collapse; margin-top: 20px; } th, td { border: 1px solid var(–border-color); padding: 10px; text-align: center; } th { background-color: var(–primary-color); color: white; } td { background-color: var(–card-background); } .article-content { margin-top: 40px; padding: 25px; background-color: var(–card-background); border: 1px solid var(–border-color); border-radius: 8px; } .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; } .faq-list .faq-item { margin-bottom: 15px; padding-bottom: 10px; border-bottom: 1px dashed var(–border-color); } .faq-list .faq-item:last-child { border-bottom: none; } .faq-question { font-weight: bold; color: var(–primary-color); cursor: pointer; display: block; } .faq-answer { margin-top: 8px; padding-left: 15px; font-size: 0.95em; color: #555; } .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; } .link-explanation { font-size: 0.9em; color: #666; margin-left: 10px; } .tooltip { position: relative; display: inline-block; cursor: help; border-bottom: 1px dotted #004a99; } .tooltip .tooltiptext { visibility: hidden; width: 220px; background-color: #333; color: #fff; text-align: center; border-radius: 6px; padding: 5px 0; position: absolute; z-index: 1; bottom: 125%; left: 50%; margin-left: -110px; opacity: 0; transition: opacity 0.3s; font-size: 0.85em; line-height: 1.4; } .tooltip .tooltiptext::after { content: ""; position: absolute; top: 100%; left: 50%; margin-left: -5px; border-width: 5px; border-style: solid; border-color: #333 transparent transparent transparent; } .tooltip:hover .tooltiptext { visibility: visible; opacity: 1; } .highlighted-result-area { background-color: var(–card-background); padding: 20px; border-radius: 8px; border: 2px dashed var(–success-color); margin-bottom: 20px; text-align: center; } .highlighted-result-area .result-label { font-size: 1.2em; color: #555; margin-bottom: 10px; display: block; } .highlighted-result-area .result-value { font-size: 3em; font-weight: bold; color: var(–success-color); line-height: 1.1; } .copy-button { margin-top: 15px; padding: 10px 20px; background-color: var(–primary-color); color: white; border: none; border-radius: 5px; cursor: pointer; transition: background-color 0.3s ease; font-size: 0.95rem; } .copy-button:hover { background-color: #003366; }

Weight Watchers Points Calculator

Calculate your personalized Weight Watchers SmartPoints budget.

Calculate Your SmartPoints

Enter your current weight in kilograms.
Enter your height in centimeters.
Enter your age in years.
Female Male Select your gender.
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/week) Extra Active (very hard exercise/sports & physical job) Choose your average weekly activity.
Lose Weight Maintain Weight Select your current weight management goal.

Your Calculated SmartPoints Budget

Daily SmartPoints Budget
Basal Metabolic Rate (BMR)
TDEE
Activity Multiplier
How it's Calculated:

The Weight Watchers SmartPoints system is proprietary and not directly calculable with a simple universal formula like BMR or TDEE. This calculator provides an *estimated* daily points budget based on common Weight Watchers principles and general metabolic calculations. It takes into account your BMR (calories burned at rest), TDEE (total daily energy expenditure including activity), and adjustments for weight goal.

Simplified Approach Used Here: 1. Calculate Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation. 2. Determine Total Daily Energy Expenditure (TDEE) by multiplying BMR by an activity level factor. 3. Adjust TDEE based on weight goal (e.g., a deficit for weight loss). 4. Convert estimated caloric needs into a *proxy* for SmartPoints. Note: Actual WW points depend on macronutrients (protein, carbs, fat, fiber) and are calculated via their specific algorithm. This tool provides a guideline, not an official WW calculation.

Estimated Caloric Needs vs. Points Allocation

Hover over bars for details Tooltips will appear here showing specific values when hovering over chart segments.

Points & Calorie Breakdown

Category Estimated Value Unit
Estimated Daily Caloric Needs (TDEE) kcal
Estimated Daily Points Budget Points
Caloric Value per Point (Approx.) kcal/point

Weight Watchers Calculate My Points: A Comprehensive Guide

Understanding how to calculate your Weight Watchers points is crucial for anyone embarking on or continuing their weight loss journey with the program. The Weight Watchers (WW) system, particularly its SmartPoints calculation, aims to guide members toward healthier food choices by assigning a point value to foods. This guide will delve into what Weight Watchers points are, how they are generally understood, and how you can use our calculator to estimate your personalized daily budget.

What is Weight Watchers Calculate My Points?

The concept of "Weight Watchers calculating points" refers to the process of determining a daily and weekly allowance of points that members can consume. The WW program assigns points to foods and drinks based on their nutritional content, focusing on factors like calories, saturated fat, sugar, and protein. Foods that are more nutritious (e.g., lean protein, fruits, vegetables) tend to have lower point values, while less healthy options (e.g., high-fat, high-sugar foods) have higher values. The goal is to encourage members to choose satisfying, nutrient-dense foods within their allocated points budget.

Who should use it: Anyone enrolled in a Weight Watchers program (or considering joining) who wants to understand their personalized points budget. This includes individuals looking to lose weight, maintain their current weight, or simply adopt healthier eating habits.

Common misconceptions: A prevalent misconception is that Weight Watchers points are solely based on calories. While calories are a significant factor, the SmartPoints system also heavily penalizes saturated fat and sugar, while rewarding protein. Another myth is that all low-point foods are "free foods"; WW emphasizes that even zero-point foods should be consumed mindfully and in appropriate portions.

Weight Watchers SmartPoints Formula and Mathematical Explanation

The exact SmartPoints formula used by Weight Watchers is proprietary and subject to change. However, the underlying principles are well-understood and based on nutritional science. The system aims to guide users towards foods that are healthier for overall well-being and sustainable weight management. The core idea is that by limiting certain nutrients (like saturated fat and sugar) and increasing others (like protein and fiber), individuals can achieve their weight goals more effectively.

While we cannot replicate the official WW algorithm, we can use established metabolic calculations to provide a valuable *estimated* daily points budget. This calculator uses a common approach:

  1. Basal Metabolic Rate (BMR): This is the number of calories your body burns at rest to maintain basic functions. We use the Mifflin-St Jeor equation, which is widely considered accurate:
    • 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
  2. Total Daily Energy Expenditure (TDEE): This estimates your total daily calorie needs, including your activity level. It's calculated by multiplying your BMR by an activity factor:
    • Sedentary: BMR × 1.2
    • Lightly Active: BMR × 1.375
    • Moderately Active: BMR × 1.55
    • Very Active: BMR × 1.725
    • Extra Active: BMR × 1.9
  3. Estimated Points Budget: This is where the estimation becomes less direct, as WW's algorithm is complex. For weight loss, a caloric deficit is needed. A common guideline is a deficit of 500-1000 calories per day for a 1-2 pound weekly loss. We use TDEE as a baseline and consider the goal. A simplified proxy is often derived by considering how many calories are associated with a "point" in the WW system. While WW doesn't state a fixed kcal/point value, common estimations place it around 40-50 kcal/point for general budgeting, but this varies greatly with food composition. Our calculator aims to provide a balanced estimate reflecting general WW principles.

Variable Explanations

Variable Meaning Unit Typical Range
Weight (kg) Your current body weight. kg 30 – 300+
Height (cm) Your body height. cm 100 – 220
Age (years) Your current age. years 10 – 100+
Gender Biological sex, affects BMR calculation. Categorical Male / Female
Activity Level Average weekly physical activity. Categorical Sedentary to Extra Active
Weight Goal Your objective (lose or maintain weight). Categorical Lose / Maintain
BMR Calories burned at rest. kcal 1000 – 2500+
TDEE Total daily energy expenditure. kcal 1500 – 4000+
Daily SmartPoints Budget Estimated daily allowance of points. Points 15 – 50+ (highly variable)

Practical Examples (Real-World Use Cases)

Let's see how the calculator works with some realistic scenarios:

Example 1: Sarah, aiming for weight loss

  • Weight: 75 kg
  • Height: 168 cm
  • Age: 42 years
  • Gender: Female
  • Activity Level: Lightly Active
  • Weight Goal: Lose Weight

Calculator Output (Estimated):

  • Daily SmartPoints Budget: ~23 Points
  • BMR: ~1400 kcal
  • TDEE: ~1925 kcal
  • Activity Multiplier: 1.375

Interpretation: Sarah has a moderate BMR and TDEE. Aiming to lose weight, the calculator suggests a daily budget of around 23 SmartPoints. This encourages her to choose nutrient-dense, lower-point foods to stay within her budget and create a caloric deficit for weight loss.

Example 2: Mark, maintaining his weight

  • Weight: 90 kg
  • Height: 180 cm
  • Age: 55 years
  • Gender: Male
  • Activity Level: Moderately Active
  • Weight Goal: Maintain Weight

Calculator Output (Estimated):

  • Daily SmartPoints Budget: ~35 Points
  • BMR: ~1850 kcal
  • TDEE: ~2870 kcal
  • Activity Multiplier: 1.55

Interpretation: Mark has a higher TDEE due to his weight, height, and activity level. To maintain his weight, the calculator estimates a higher daily points budget of around 35 SmartPoints, aligning with his estimated caloric needs for maintenance.

How to Use This Weight Watchers Points Calculator

Using our calculator is straightforward:

  1. Enter Your Details: Accurately input your current weight (in kg), height (in cm), age (in years), select your gender, choose your typical activity level, and state your weight goal (lose or maintain).
  2. Calculate: Click the "Calculate Points" button.
  3. Review Results: The calculator will display your estimated Daily SmartPoints Budget as the main highlighted result. You'll also see intermediate values like your estimated Basal Metabolic Rate (BMR), Total Daily Energy Expenditure (TDEE), and the Activity Multiplier used.
  4. Understand the Formula: Read the brief explanation of how the points are estimated. Remember this is a guideline based on metabolic calculations, not the official WW algorithm.
  5. Analyze the Chart & Table: The chart visually compares your estimated caloric needs (TDEE) with your points budget, showing the approximate caloric value per point. The table provides a clear breakdown.
  6. Reset or Copy: Use the "Reset" button to clear fields and start over. Use the "Copy Results" button to save your calculated values and assumptions.

Decision-Making Guidance: Use the estimated points budget as a starting point for your WW journey. If your goal is weight loss, aim to consistently stay within this budget. If you find you're not losing weight, you might need to slightly adjust your food choices, portion sizes, or activity levels. For maintenance, this budget should help you stay stable.

Key Factors That Affect Weight Watchers Points Results

Several factors influence your personalized points budget, both within the WW system and in our estimation:

  1. Nutritional Content (Official WW): The primary driver in the official WW system. Foods high in protein and fiber generally have fewer points, while those high in sugar and saturated fat have more. Our calculator estimates a budget, but the actual points per food item are determined by WW's specific algorithm.
  2. Caloric Deficit/Surplus: For weight loss, you need to consume fewer calories than you burn. Our TDEE calculation helps estimate your maintenance calories, and the points budget is adjusted for a deficit. Consistently exceeding your points budget will likely hinder weight loss.
  3. Activity Level: Higher activity levels burn more calories, increasing your TDEE. This generally translates to a higher points budget, whether for maintenance or making weight loss more achievable.
  4. Metabolic Rate (BMR): Influenced by age, gender, weight, and height. Younger individuals and those with more muscle mass tend to have higher BMRs.
  5. Age: Metabolism naturally slows down with age, typically decreasing BMR. Our calculation accounts for this.
  6. Body Composition: While not directly measured by our calculator, muscle burns more calories than fat. Someone with higher muscle mass might have a higher BMR and TDEE than someone of the same weight with more body fat.
  7. Digestion & Metabolism Variations: Individual metabolic responses to food can vary. The points system aims for a population average, but personal results may differ slightly.
  8. Consistency: Adhering to your points budget daily is key. Occasional splurges can be managed, but consistent overspending will impact results.

Frequently Asked Questions (FAQ)

Is this the official Weight Watchers points calculator?
No, this is an independent calculator designed to provide an *estimated* daily points budget based on established metabolic formulas (like BMR and TDEE) and general Weight Watchers principles. The official SmartPoints calculation is proprietary to WW and considers specific macronutrient breakdowns.
How accurate is the estimated SmartPoints budget?
Our calculator provides a good guideline for your daily points needs, especially for weight loss or maintenance goals. However, the actual WW SmartPoints values for individual foods and your personalized WW budget may vary. It's best used as a starting point.
What if my calculated points seem too low or too high?
Individual metabolism varies. If the estimate seems off, consider your actual dietary habits and energy levels. You may need to consult with a WW coach or adjust your intake slightly based on your progress. Remember, the calculation is an estimate.
Can I use this calculator if I'm not a WW member?
Yes, the underlying principles (BMR, TDEE) are useful for anyone trying to understand their energy expenditure and calorie needs for weight management, even outside the WW program. The "points" output can be seen as a proxy for a calorie-controlled budget.
Does the calculator account for weekly flex points or rollovers?
No, this calculator focuses solely on estimating your *daily* SmartPoints budget based on your physical metrics and goals. The official WW program includes features like weekly flex points and rollovers, which are not factored into this calculation.
How does gender affect the points calculation?
Gender affects the BMR calculation. Generally, men have a higher BMR than women of the same weight, height, and age due to differences in body composition (e.g., typically higher muscle mass). This influences the overall TDEE and estimated points budget.
What is the difference between BMR and TDEE in this context?
BMR is the energy your body needs at complete rest. TDEE (Total Daily Energy Expenditure) is a more comprehensive measure that includes BMR plus the calories burned through all activities, including exercise and daily movements. TDEE is a better indicator of your overall daily calorie needs.
Can I eat zero-point foods freely?
While WW designates certain foods (like fruits, vegetables, lean proteins) as zero-point, mindful eating is still encouraged. Consuming excessive amounts, even of zero-point foods, can impact weight loss progress. Use them to build satisfying meals within your overall plan.

Related Tools and Internal Resources

// Function to get input value safely function getInputValue(id) { var inputElement = document.getElementById(id); var value = parseFloat(inputElement.value); return isNaN(value) ? null : value; } // Function to display error messages function showError(elementId, message) { var errorElement = document.getElementById(elementId); if (message) { errorElement.innerText = message; errorElement.classList.add('visible'); } else { errorElement.innerText = "; errorElement.classList.remove('visible'); } } // Function to clear all errors function clearErrors() { showError('weightKgError', "); showError('heightCmError', "); showError('ageYearsError', "); } // Global variables for chart data var chartInstance = null; var chartData = { labels: ["Estimated TDEE", "Points Budget Proxy"], datasets: [{ label: 'Calories / Points', data: [0, 0], // Will be updated by calculatePoints backgroundColor: [ 'rgba(0, 74, 153, 0.7)', // Primary color for TDEE 'rgba(40, 167, 69, 0.7)' // Success color for Points ], borderColor: [ 'rgba(0, 74, 153, 1)', 'rgba(40, 167, 69, 1)' ], borderWidth: 1 }] }; // Function to update the chart function updateChart(tdeeValue, pointsValue) { var ctx = document.getElementById('pointsVsCaloriesChart').getContext('2d'); // Convert points to an approximate calorie equivalent for comparison // This is an estimation, actual WW kcal/point varies var kcalPerPointEstimate = 45; // Common estimate var pointsAsKcal = pointsValue * kcalPerPointEstimate; chartData.datasets[0].data = [tdeeValue, pointsAsKcal]; // Destroy previous chart instance if it exists if (chartInstance) { chartInstance.destroy(); } // Create new chart instance chartInstance = new Chart(ctx, { type: 'bar', data: chartData, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Amount (kcal or Points Proxy)' } } }, plugins: { legend: { display: true, position: 'top', }, tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || "; if (label) { label += ': '; } if (context.parsed.x === 0) { // TDEE bar label += context.parsed.y.toFixed(0) + ' kcal'; } else if (context.parsed.x === 1) { // Points bar label += context.parsed.y.toFixed(0) + ' kcal (approx. ' + pointsValue.toFixed(0) + ' Points)'; } return label; } } } } } }); } // Function to update table values function updateTable(tdeeValue, pointsValue, kcalPerPoint) { document.getElementById('tableTdee').innerText = tdeeValue !== null ? tdeeValue.toFixed(0) : '–'; document.getElementById('tablePoints').innerText = pointsValue !== null ? pointsValue.toFixed(0) : '–'; document.getElementById('tableKcalPerPoint').innerText = kcalPerPoint !== null ? kcalPerPoint.toFixed(1) : '–'; } // Main calculation function function calculatePoints() { clearErrors(); var resultsDisplay = document.getElementById('resultsDisplay'); resultsDisplay.style.display = 'none'; var weightKg = getInputValue('weightKg'); var heightCm = getInputValue('heightCm'); var ageYears = getInputValue('ageYears'); var gender = document.getElementById('gender').value; var activityLevel = document.getElementById('activityLevel').value; var goal = document.getElementById('goal').value; // Input validation if (weightKg === null || weightKg <= 0) showError('weightKgError', 'Please enter a valid weight.'); if (heightCm === null || heightCm <= 0) showError('heightCmError', 'Please enter a valid height.'); if (ageYears === null || ageYears <= 0) showError('ageYearsError', 'Please enter a valid age.'); // Check if any errors occurred if (document.querySelector('.error-message.visible')) { return; } // Calculate BMR (Mifflin-St Jeor Equation) var bmr = 0; if (gender === 'male') { bmr = (10 * weightKg) + (6.25 * heightCm) – (5 * ageYears) + 5; } else { // female bmr = (10 * weightKg) + (6.25 * heightCm) – (5 * ageYears) – 161; } // Determine activity multiplier var activityMultiplier = 1.0; switch (activityLevel) { case 'sedentary': activityMultiplier = 1.2; break; case 'lightlyActive': activityMultiplier = 1.375; break; case 'moderatelyActive': activityMultiplier = 1.55; break; case 'veryActive': activityMultiplier = 1.725; break; case 'extraActive': activityMultiplier = 1.9; break; } // Calculate TDEE var tdee = bmr * activityMultiplier; // Estimate Points Budget var estimatedPoints = 0; var calorieDeficitPerDay = 0; var kcalPerPointEstimate = 45; // Approximate kcal per point if (goal === 'lose') { // Aim for approx 1 lb/week loss, which is ~500 kcal deficit/day calorieDeficitPerDay = 500; var targetCalories = tdee – calorieDeficitPerDay; // Ensure target calories don't go below a safe minimum (e.g., 1200 kcal) if (targetCalories < 1200) { targetCalories = 1200; calorieDeficitPerDay = tdee – targetCalories; // Adjust deficit if minimum reached } estimatedPoints = targetCalories / kcalPerPointEstimate; } else { // maintain estimatedPoints = tdee / kcalPerPointEstimate; } // Ensure points are a reasonable minimum (e.g. 15-20 for WW) if (estimatedPoints < 15) estimatedPoints = 15; // Display results document.getElementById('mainResult').innerText = estimatedPoints.toFixed(0); document.getElementById('basalMetabolicRate').innerText = bmr.toFixed(0); document.getElementById('totalDailyEnergyExpenditure').innerText = tdee.toFixed(0); document.getElementById('activityMultiplier').innerText = activityMultiplier.toFixed(3); resultsDisplay.style.display = 'block'; // Update chart and table updateChart(tdee, estimatedPoints); updateTable(tdee, estimatedPoints, kcalPerPointEstimate); } // Reset function function resetCalculator() { document.getElementById('weightKg').value = '70'; document.getElementById('heightCm').value = '165'; document.getElementById('ageYears').value = '35'; document.getElementById('gender').value = 'female'; document.getElementById('activityLevel').value = 'lightlyActive'; document.getElementById('goal').value = 'lose'; document.getElementById('resultsDisplay').style.display = 'none'; clearErrors(); // Clear chart data on reset if (chartInstance) { chartInstance.destroy(); chartInstance = null; } updateChart(0,0); // Reset chart to default empty state updateTable('–', '–', '–'); } // Copy results function function copyResults() { var mainResult = document.getElementById('mainResult').innerText; var bmr = document.getElementById('basalMetabolicRate').innerText; var tdee = document.getElementById('totalDailyEnergyExpenditure').innerText; var activityMultiplier = document.getElementById('activityMultiplier').innerText; var weightKg = document.getElementById('weightKg').value; var heightCm = document.getElementById('heightCm').value; var ageYears = document.getElementById('ageYears').value; var gender = document.getElementById('gender').value; var activityLevel = document.getElementById('activityLevel').options[document.getElementById('activityLevel').selectedIndex].text; var goal = document.getElementById('goal').value; if (mainResult === '–') { alert("Please calculate results first."); return; } var resultsText = "Weight Watchers SmartPoints Calculation:\n\n" + "— Inputs —\n" + "Weight: " + weightKg + " kg\n" + "Height: " + heightCm + " cm\n" + "Age: " + ageYears + " years\n" + "Gender: " + gender.charAt(0).toUpperCase() + gender.slice(1) + "\n" + "Activity Level: " + activityLevel + "\n" + "Goal: " + goal.charAt(0).toUpperCase() + goal.slice(1) + "\n\n" + "— Results —\n" + "Daily SmartPoints Budget: " + mainResult + " Points\n" + "Basal Metabolic Rate (BMR): " + bmr + " kcal\n" + "Total Daily Energy Expenditure (TDEE): " + tdee + " kcal\n" + "Activity Multiplier: " + activityMultiplier + "\n\n" + "Note: These are estimated values. Official WW SmartPoints may differ."; navigator.clipboard.writeText(resultsText).then(function() { alert('Results copied to clipboard!'); }).catch(function(err) { console.error('Failed to copy results: ', err); alert('Failed to copy results. Please copy manually.'); }); } // Initialize chart on page load window.onload = function() { // Create an empty chart initially var ctx = document.getElementById('pointsVsCaloriesChart').getContext('2d'); chartInstance = new Chart(ctx, { type: 'bar', data: { labels: ["Estimated TDEE", "Points Budget Proxy"], datasets: [{ label: 'Calories / Points', data: [0, 0], backgroundColor: [ 'rgba(0, 74, 153, 0.7)', 'rgba(40, 167, 69, 0.7)' ], borderColor: [ 'rgba(0, 74, 153, 1)', 'rgba(40, 167, 69, 1)' ], borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Amount (kcal or Points Proxy)' } } }, plugins: { legend: { display: true, position: 'top', }, tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || ''; if (label) { label += ': '; } if (context.parsed.x === 0) { // TDEE bar label += context.parsed.y.toFixed(0) + ' kcal'; } else if (context.parsed.x === 1) { // Points bar var pointsValue = document.getElementById('mainResult').innerText === '–' ? 0 : parseFloat(document.getElementById('mainResult').innerText); label += context.parsed.y.toFixed(0) + ' kcal (approx. ' + pointsValue.toFixed(0) + ' Points)'; } return label; } } } } } }); };

Leave a Comment