Exercise Bike Weight Loss Calculator

Exercise Bike Weight Loss Calculator: Track Your Progress :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-radius: 8px; –box-shadow: 0 4px 12px 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: 20px; display: flex; justify-content: center; } .container { max-width: 960px; width: 100%; background-color: #fff; padding: 30px; border-radius: var(–border-radius); box-shadow: var(–box-shadow); margin: auto; } header { text-align: center; margin-bottom: 30px; border-bottom: 1px solid #eee; padding-bottom: 20px; } header h1 { color: var(–primary-color); margin-bottom: 10px; } .calc-section { background-color: #fdfdfd; padding: 25px; border-radius: var(–border-radius); margin-bottom: 30px; border: 1px solid #eee; } .calc-section h2 { color: var(–primary-color); margin-top: 0; margin-bottom: 20px; text-align: center; } .loan-calc-container { display: flex; flex-direction: column; gap: 15px; } .input-group { display: flex; flex-direction: column; gap: 8px; } .input-group label { font-weight: bold; color: #555; } .input-group input[type="number"], .input-group input[type="range"], .input-group select { padding: 10px 12px; border: 1px solid #ccc; border-radius: var(–border-radius); font-size: 1rem; width: calc(100% – 24px); box-sizing: border-box; } .input-group input[type="number"]:focus, .input-group select:focus { outline: none; border-color: var(–primary-color); box-shadow: 0 0 0 2px rgba(0, 74, 153, 0.2); } .input-group small { color: #6c757d; font-size: 0.85rem; } .error-message { color: #dc3545; font-size: 0.8rem; margin-top: 5px; min-height: 1.2em; /* Reserve space */ } .button-group { display: flex; justify-content: space-between; gap: 10px; margin-top: 20px; } .button-group button { padding: 10px 15px; border: none; border-radius: var(–border-radius); cursor: pointer; font-size: 1rem; transition: background-color 0.3s ease; flex: 1; } .btn-primary { background-color: var(–primary-color); color: white; } .btn-primary:hover { background-color: #003366; } .btn-secondary { background-color: #6c757d; color: white; } .btn-secondary:hover { background-color: #5a6268; } #results-container { margin-top: 30px; padding: 25px; background-color: #e9ecef; border-radius: var(–border-radius); border: 1px solid #dee2e6; } #results-container h2 { color: var(–primary-color); margin-top: 0; text-align: center; } .main-result { font-size: 2.5rem; font-weight: bold; color: var(–success-color); text-align: center; margin-bottom: 20px; background-color: #ffffff; padding: 15px; border-radius: var(–border-radius); border: 2px dashed var(–primary-color); } .intermediate-results { display: flex; flex-wrap: wrap; justify-content: center; gap: 20px; margin-bottom: 20px; } .intermediate-results div { text-align: center; background-color: #fff; padding: 15px; border-radius: var(–border-radius); box-shadow: 0 2px 5px rgba(0,0,0,0.08); min-width: 120px; } .intermediate-results span { display: block; font-weight: bold; font-size: 1.8rem; color: var(–primary-color); } .intermediate-results p { margin: 0; font-size: 0.9rem; color: #555; } .formula-explanation { text-align: center; font-size: 0.95rem; color: #555; margin-top: 15px; padding-top: 15px; border-top: 1px solid #ddd; } .chart-container { margin-top: 30px; padding: 25px; background-color: #f8f9fa; border-radius: var(–border-radius); border: 1px solid #eee; text-align: center; } .chart-container h2 { color: var(–primary-color); margin-top: 0; margin-bottom: 20px; } #weightLossChart { max-width: 100%; height: auto; border-radius: var(–border-radius); border: 1px solid #ccc; } .table-container { margin-top: 30px; overflow-x: auto; } .table-container caption { font-weight: bold; color: var(–primary-color); margin-bottom: 15px; font-size: 1.2rem; text-align: center; } table { width: 100%; border-collapse: collapse; border-radius: var(–border-radius); overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.1); } th, td { padding: 12px 15px; text-align: left; border-bottom: 1px solid #ddd; } thead th { background-color: var(–primary-color); color: white; font-weight: bold; } tbody tr:nth-child(even) { background-color: #f2f2f2; } tbody tr:hover { background-color: #e9ecef; } footer { text-align: center; margin-top: 40px; padding-top: 20px; border-top: 1px solid #eee; font-size: 0.9rem; color: #6c757d; } #article-content { margin-top: 40px; background-color: #fff; padding: 30px; border-radius: var(–border-radius); box-shadow: var(–box-shadow); } #article-content h2, #article-content h3 { color: var(–primary-color); margin-top: 1.5em; margin-bottom: 0.8em; } #article-content h2 { font-size: 1.8rem; border-bottom: 2px solid var(–primary-color); padding-bottom: 5px; } #article-content h3 { font-size: 1.4rem; } #article-content p, #article-content ul, #article-content ol { margin-bottom: 1.2em; } #article-content ul, #article-content ol { padding-left: 30px; } #article-content li { margin-bottom: 0.5em; } #article-content strong { color: var(–primary-color); } .link-list { list-style: none; padding: 0; } .link-list li { margin-bottom: 15px; padding: 10px; border: 1px solid #eee; border-radius: var(–border-radius); background-color: #f9f9f9; } .link-list a { color: var(–primary-color); font-weight: bold; text-decoration: none; } .link-list a:hover { text-decoration: underline; } .link-list span { display: block; font-size: 0.9rem; color: #6c757d; margin-top: 5px; } @media (min-width: 768px) { .button-group { flex-direction: row; justify-content: flex-start; } }

Exercise Bike Weight Loss Calculator

Estimate your potential weight loss by cycling.

Calculate Your Weight Loss Potential

Enter your weight in kilograms (kg).
Enter the total minutes you plan to cycle.
Low (e.g., < 100 watts) Moderate (e.g., 100-150 watts) High (e.g., > 150 watts) Select the average intensity level during your ride.
Adjust from 1 (easy) to 10 (hard).
How many times per week will you exercise?

Your Weight Loss Estimate

–.– kg

Calories Burned

–.–

Potential BMI Change

–.–

Estimated Weekly Loss

How it works: We estimate calories burned based on your weight, duration, intensity (approximated by METs), and resistance level. A general rule of thumb is that 7,700 calories burned equals approximately 1 kg of fat loss.
Your Weight Loss Estimate: Main Result: –.– kg Calories Burned: — Potential BMI Change: –.– Estimated Weekly Loss: –.– kg Key Assumptions: – 1 kg fat ≈ 7700 kcal – MET values are estimates based on intensity and resistance.

Estimated Calorie Burn Over Time

This chart visualizes estimated calories burned per session based on duration.

Estimated Calorie Burn Rates
Intensity Level MET Value (Approx.) Calories/Hour (for 70kg person)
Low 5.0 350 kcal
Moderate 7.0 490 kcal
High 10.0 700 kcal

What is an Exercise Bike Weight Loss Calculator?

An exercise bike weight loss calculator is a specialized online tool designed to help individuals estimate the amount of weight they can potentially lose by using an exercise bike. It takes into account various factors such as your current body weight, the duration and intensity of your cycling sessions, and how frequently you exercise. By inputting these details, the calculator provides an estimate of calories burned per session and over time, translating this into potential weight loss in kilograms or pounds. This tool serves as a motivational aid and a planning resource for anyone looking to leverage stationary cycling for fitness and body composition goals. It's particularly useful for beginners who are unsure about the effectiveness of their workouts or for experienced users wanting to quantify their efforts more precisely. Common misconceptions include believing that simply using an exercise bike guarantees weight loss without considering diet, or that all exercise bike sessions burn the same number of calories regardless of effort.

Exercise Bike Weight Loss Calculator Formula and Mathematical Explanation

The core of the exercise bike weight loss calculator relies on estimating calorie expenditure. This is a multi-step process:

  1. Calculating METs (Metabolic Equivalents): METs represent the energy cost of physical activities. For cycling, MET values vary significantly with intensity and resistance. We approximate METs based on the user's selected intensity level and resistance setting.
  2. Calculating Calories Burned Per Minute: The formula used is: Calories Burned Per Minute = (METs * 3.5 * Body Weight in kg) / 200
  3. Calculating Total Calories Burned Per Session: Total Calories Burned = Calories Burned Per Minute * Duration in Minutes
  4. Estimating Weekly Calorie Deficit: Weekly Calories Burned = Total Calories Burned Per Session * Frequency Per Week
  5. Estimating Weight Loss: The widely accepted estimate is that 7,700 kilocalories (kcal) are equivalent to approximately 1 kilogram of fat. Estimated Weekly Weight Loss (kg) = Weekly Calories Burned / 7700
  6. Estimating BMI Change: To estimate BMI change, we first calculate the weight loss in kg. Then, using a standard BMI formula (Weight in kg / (Height in m)^2), we'd ideally need height. Since height isn't an input, we make a simplification for demonstration: assuming an average adult height (e.g., 1.75m), a 1kg weight loss corresponds to a certain change in BMI. For simplicity in this calculator, we'll focus on the direct weight loss. A more complex calculator would include height. The potential BMI change is directly proportional to the weight lost, assuming height remains constant.

Variable Explanations

Variable Meaning Unit Typical Range
Body Weight The user's current weight. kg 40 – 150 kg
Duration Length of a single exercise session. Minutes 10 – 120 minutes
Intensity Subjective or objective measure of effort (e.g., perceived exertion, wattage). Categorical (Low, Moderate, High) Low, Moderate, High
Resistance Level Setting on the exercise bike affecting pedaling difficulty. Scale (1-10) 1 – 10
Frequency Number of exercise sessions per week. Times/Week 1 – 7
METs Metabolic Equivalent of Task, representing energy expenditure relative to resting metabolism. Unitless Approx. 5.0 – 10.0 for cycling
Calories Burned Estimated energy expenditure during exercise. kcal Varies based on inputs
Weight Loss Estimated fat loss based on calorie deficit. kg Varies based on inputs

Practical Examples (Real-World Use Cases)

Let's look at how the exercise bike weight loss calculator can be used:

Example 1: Consistent Beginner

Scenario: Sarah weighs 75 kg and is new to exercise. She wants to lose weight by cycling consistently. She plans to cycle for 30 minutes at a moderate intensity, 4 times a week.

Inputs:

  • Weight: 75 kg
  • Duration: 30 minutes
  • Intensity: Moderate
  • Resistance Level: 4
  • Frequency: 4 times/week

Calculation:

  • Estimated METs (Moderate): ~7.0
  • Calories Burned per Minute: (7.0 * 3.5 * 75) / 200 ≈ 9.19 kcal/min
  • Total Calories Burned per Session: 9.19 * 30 ≈ 276 kcal
  • Weekly Calories Burned: 276 * 4 ≈ 1104 kcal
  • Estimated Weekly Weight Loss: 1104 / 7700 ≈ 0.14 kg

Interpretation: Sarah can expect to lose approximately 0.14 kg per week with this routine. While it might seem slow, consistency is key. Over a month, this amounts to nearly 0.6 kg, contributing to her overall health goals. This result helps her understand the impact of her efforts and stay motivated.

Example 2: Intense Intermediate Cyclist

Scenario: Mark weighs 90 kg and is an intermediate cyclist. He aims for significant weight loss and cycles with high intensity for longer durations. He cycles for 60 minutes at high intensity, 3 times a week.

Inputs:

  • Weight: 90 kg
  • Duration: 60 minutes
  • Intensity: High
  • Resistance Level: 8
  • Frequency: 3 times/week

Calculation:

  • Estimated METs (High): ~10.0
  • Calories Burned per Minute: (10.0 * 3.5 * 90) / 200 ≈ 15.75 kcal/min
  • Total Calories Burned per Session: 15.75 * 60 ≈ 945 kcal
  • Weekly Calories Burned: 945 * 3 ≈ 2835 kcal
  • Estimated Weekly Weight Loss: 2835 / 7700 ≈ 0.37 kg

Interpretation: Mark's more intense and longer sessions lead to a higher calorie burn, estimating a weekly weight loss of about 0.37 kg. This is a more substantial weekly loss, and over a month, it could be around 1.5 kg. This reinforces the benefit of pushing intensity when appropriate for faster results, combined with a balanced diet.

How to Use This Exercise Bike Weight Loss Calculator

Using the exercise bike weight loss calculator is straightforward. Follow these steps:

  1. Enter Your Weight: Input your current body weight in kilograms (kg). This is a crucial factor as heavier individuals generally burn more calories for the same activity.
  2. Specify Duration: Enter how many minutes you intend to cycle in a single session. Longer durations naturally lead to higher calorie expenditure.
  3. Select Intensity Level: Choose between 'Low', 'Moderate', or 'High'. 'Low' might feel like a warm-up or recovery ride, 'Moderate' feels challenging but sustainable, and 'High' is a vigorous effort. The calculator uses estimated MET values for each level.
  4. Adjust Resistance: Use the slider to indicate the resistance level on your bike. Higher resistance means more effort is required to pedal, increasing calorie burn.
  5. Set Frequency: Input how many days per week you plan to use the exercise bike. This helps calculate the cumulative effect over time.
  6. Click Calculate: Once all fields are populated, click the 'Calculate' button.

How to Read Results:

  • Main Result (Estimated Weight Loss): This is the primary output, showing the estimated amount of weight (in kg) you could lose per week based on your inputs.
  • Calories Burned: Shows the estimated total calories burned in a single session.
  • Potential BMI Change: Provides an indication of how your Body Mass Index might decrease if you achieve the estimated weight loss (assuming height remains constant).
  • Estimated Weekly Loss: Reinforces the primary result for clarity.

Decision-Making Guidance:

Use the results to set realistic goals. If the estimated weekly loss is lower than you hoped, consider increasing duration, intensity, or frequency. If you're aiming for rapid weight loss, remember that diet plays a critical role. This calculator focuses solely on the exercise component. For sustainable fat loss, a combination of exercise and a caloric deficit through diet is most effective.

Key Factors That Affect Exercise Bike Weight Loss Results

While the calculator provides estimates, several real-world factors significantly influence actual weight loss achieved through exercise biking:

  1. Dietary Intake: This is perhaps the most significant factor. Exercise burns calories, but if you consume more calories than you burn (even with exercise), you won't lose weight. A caloric deficit achieved through both diet and exercise yields the best results.
  2. Consistency: Sporadic workouts won't yield the same results as a regular, consistent schedule. The calculator's 'Frequency' input is key here, but maintaining that frequency over weeks and months is crucial for long-term progress.
  3. Metabolic Rate: Individual metabolic rates vary. Factors like age, genetics, muscle mass, and hormonal balance affect how quickly your body burns calories at rest and during exercise.
  4. Exercise Duration and Intensity (Actual vs. Perceived): The calculator estimates based on input. However, maintaining the *actual* intensity and duration throughout a workout can be challenging. Factors like fatigue, motivation, and physiological response influence this.
  5. Muscle Gain: As you build muscle mass through exercise, your resting metabolic rate can increase. While this is beneficial long-term, muscle is denser than fat, so the scale might not move as quickly as expected initially, even though you're losing fat.
  6. Hydration Levels: While not directly burning calories, dehydration can negatively impact workout performance, reducing the intensity and duration you can sustain, thus affecting calorie burn.
  7. Sleep Quality: Inadequate sleep can disrupt hormones that regulate appetite and metabolism (like cortisol, ghrelin, and leptin), potentially hindering weight loss efforts.
  8. Age and Gender: These factors influence metabolic rate and body composition. Generally, metabolism tends to slow with age, and men often have a higher metabolic rate than women due to higher muscle mass.

Frequently Asked Questions (FAQ)

How many calories does an exercise bike burn?
The number of calories burned on an exercise bike varies greatly depending on your weight, the duration of the ride, and crucially, the intensity and resistance level. Heavier individuals and those exercising at higher intensities for longer periods will burn more calories.
Is 30 minutes on an exercise bike enough to lose weight?
30 minutes of moderate-intensity cycling can contribute significantly to weight loss, especially when done consistently (e.g., 4-5 times a week) and combined with a healthy diet. It burns calories and helps create the necessary energy deficit.
How long does it take to lose 1 kg on an exercise bike?
To lose 1 kg of fat, you need to burn approximately 7,700 calories more than you consume. If your exercise bike routine creates a daily deficit of, say, 500 calories (through exercise and diet), it would take about 15.4 days to lose 1 kg. The calculator estimates weekly loss based purely on exercise burn.
Can I lose weight just by using an exercise bike without changing my diet?
While you might lose some weight initially due to increased calorie expenditure, sustainable and significant weight loss typically requires a caloric deficit, which is most effectively achieved through a combination of exercise and dietary adjustments. Without dietary changes, it's harder to create a substantial deficit.
What is a good resistance level for weight loss?
A 'good' resistance level is one that allows you to maintain your target intensity and duration without excessive strain. For weight loss, aim for a level that makes you feel challenged (e.g., moderate to high intensity) for the duration of your workout. Listen to your body and gradually increase resistance as you get fitter.
Does the type of exercise bike (upright, recumbent, spin) matter for weight loss?
While the fundamental principles of calorie burn apply to all types, spin bikes often allow for higher intensity workouts and greater resistance, potentially leading to higher calorie burn in a shorter time. However, consistency and effort are more critical than the specific bike type.
How does heart rate relate to calorie burn on an exercise bike?
Higher heart rates generally correspond to higher exercise intensities and thus, higher calorie burn rates. The calculator uses intensity levels (low, moderate, high) as a proxy for heart rate zones and exertion.
What is a realistic weekly weight loss goal?
A safe and sustainable weekly weight loss goal is typically between 0.5 kg to 1 kg (about 1-2 lbs). This equates to a daily deficit of 500-1000 calories. The calculator helps you see how your exercise routine contributes to this goal.

Related Tools and Internal Resources

© 2023 Your Fitness Hub. All rights reserved.

function validateInput(id, min, max) { var input = document.getElementById(id); var value = parseFloat(input.value); var errorDiv = document.getElementById(id + "Error"); var isValid = true; if (isNaN(value) || input.value.trim() === "") { errorDiv.textContent = "This field is required."; isValid = false; } else if (value max) { errorDiv.textContent = "Value cannot be greater than " + max + "."; isValid = false; } else { errorDiv.textContent = ""; } return isValid; } function getFormattedValue(value, decimals = 2) { if (isNaN(value) || !isFinite(value)) return "–.–"; return value.toFixed(decimals); } function getIntensityMETs(intensity) { if (intensity === "low") return 5.0; if (intensity === "moderate") return 7.0; if (intensity === "high") return 10.0; return 7.0; // Default to moderate } function getResistanceFactor(resistance) { // Simple linear mapping: 1 to 10 resistance increases METs by ~10% return 1 + (resistance – 1) * 0.1; } function calculateWeightLoss() { var weightKg = parseFloat(document.getElementById("weightKg").value); var durationMinutes = parseFloat(document.getElementById("durationMinutes").value); var intensity = document.getElementById("intensity").value; var resistanceLevel = parseFloat(document.getElementById("resistanceLevel").value); var frequencyPerWeek = parseFloat(document.getElementById("frequencyPerWeek").value); var weightKgError = document.getElementById("weightKgError"); var durationMinutesError = document.getElementById("durationMinutesError"); var intensityError = document.getElementById("intensityError"); // Not strictly needed for select but good practice var resistanceLevelError = document.getElementById("resistanceLevelError"); var frequencyPerWeekError = document.getElementById("frequencyPerWeekError"); var isValid = true; if (isNaN(weightKg) || weightKg <= 0) { weightKgError.textContent = "Please enter a valid weight."; isValid = false; } else { weightKgError.textContent = ""; } if (isNaN(durationMinutes) || durationMinutes <= 0) { durationMinutesError.textContent = "Please enter a valid duration."; isValid = false; } else { durationMinutesError.textContent = ""; } if (isNaN(resistanceLevel) || resistanceLevel 10) { resistanceLevelError.textContent = "Resistance must be between 1 and 10."; isValid = false; } else { resistanceLevelError.textContent = ""; } if (isNaN(frequencyPerWeek) || frequencyPerWeek <= 0) { frequencyPerWeekError.textContent = "Please enter a valid frequency."; isValid = false; } else { frequencyPerWeekError.textContent = ""; } if (!isValid) return; var baseMETs = getIntensityMETs(intensity); var resistanceMultiplier = getResistanceFactor(resistanceLevel); var effectiveMETs = baseMETs * resistanceMultiplier; var caloriesPerMinute = (effectiveMETs * 3.5 * weightKg) / 200; var totalCaloriesSession = caloriesPerMinute * durationMinutes; var weeklyCaloriesBurned = totalCaloriesSession * frequencyPerWeek; var estimatedWeightLossKg = weeklyCaloriesBurned / 7700; var mainResultDiv = document.getElementById("mainResult"); var caloriesBurnedSpan = document.getElementById("caloriesBurned"); var weeklyLossSpan = document.getElementById("weeklyLoss"); var bmiChangeSpan = document.getElementById("bmiChange"); // Placeholder, needs height for accurate BMI mainResultDiv.textContent = getFormattedValue(estimatedWeightLossKg, 2) + " kg"; caloriesBurnedSpan.textContent = getFormattedValue(totalCaloriesSession, 0); weeklyLossSpan.textContent = getFormattedValue(estimatedWeightLossKg, 2); // Simplified BMI change estimate: Assume a standard height (e.g., 1.75m) for demonstration. // A real BMI change needs actual height input. var assumedHeightM = 1.75; var currentBmiApprox = weightKg / (assumedHeightM * assumedHeightM); var futureWeightApprox = weightKg – estimatedWeightLossKg; var futureBmiApprox = futureWeightApprox / (assumedHeightM * assumedHeightM); var bmiChange = currentBmiApprox – futureBmiApprox; bmiChangeSpan.textContent = getFormattedValue(bmiChange, 2); updateChart(durationMinutes, effectiveMETs, weightKg); updateResultsToCopy(estimatedWeightLossKg, totalCaloriesSession, bmiChange, estimatedWeightLossKg); } function updateResultsToCopy(mainResult, calories, bmiChange, weeklyLoss) { var resultsDiv = document.getElementById("resultsToCopy"); resultsDiv.innerHTML = ` Your Weight Loss Estimate: Main Result: ${getFormattedValue(weeklyLoss, 2)} kg per week Calories Burned per Session: ${getFormattedValue(calories, 0)} kcal Potential BMI Change: ${getFormattedValue(bmiChange, 2)} Estimated Weekly Loss: ${getFormattedValue(weeklyLoss, 2)} kg Key Assumptions: – 1 kg fat ≈ 7700 kcal – MET values are estimates based on intensity and resistance. – BMI change assumes a constant height of 1.75m. `; } function copyResults() { var resultsDiv = document.getElementById("resultsToCopy"); var textToCopy = resultsDiv.innerText; navigator.clipboard.writeText(textToCopy).then(function() { alert("Results copied to clipboard!"); }).catch(function(err) { console.error('Failed to copy: ', err); alert("Failed to copy results. Please copy manually."); }); } function resetCalculator() { document.getElementById("weightKg").value = 70; document.getElementById("durationMinutes").value = 30; document.getElementById("intensity").value = "moderate"; document.getElementById("resistanceLevel").value = 5; document.getElementById("frequencyPerWeek").value = 3; // Clear errors var errorDivs = document.getElementsByClassName("error-message"); for (var i = 0; i < errorDivs.length; i++) { errorDivs[i].textContent = ""; } calculateWeightLoss(); // Recalculate with default values } // Charting Logic function updateChart(durationMinutes, effectiveMETs, weightKg) { var ctx = document.getElementById('weightLossChart').getContext('2d'); // Clear previous chart if it exists if (window.weightLossChartInstance) { window.weightLossChartInstance.destroy(); } var dataPoints = 5; // Number of data points to show on chart var durationStep = durationMinutes / dataPoints; var labels = []; var caloriesData = []; for (var i = 1; i <= dataPoints; i++) { var currentDuration = durationStep * i; var currentCalories = ((effectiveMETs * 3.5 * weightKg) / 200) * currentDuration; labels.push(Math.round(currentDuration) + ' min'); caloriesData.push(currentCalories); } window.weightLossChartInstance = new Chart(ctx, { type: 'line', data: { labels: labels, datasets: [{ label: 'Estimated Calories Burned', data: caloriesData, borderColor: 'rgb(0, 74, 153)', backgroundColor: 'rgba(0, 74, 153, 0.1)', fill: true, tension: 0.3 }] }, options: { responsive: true, maintainAspectRatio: true, scales: { y: { beginAtZero: true, title: { display: true, text: 'Calories Burned (kcal)' } }, x: { title: { display: true, text: 'Exercise Duration' } } }, plugins: { tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || ''; if (label) { label += ': '; } if (context.parsed.y !== null) { label += context.parsed.y.toFixed(0) + ' kcal'; } return label; } } } } } }); } // Add Chart.js library dynamically if not present (for standalone HTML) // In a real WP setup, you'd enqueue this script. function loadChartJs() { if (typeof Chart === 'undefined') { var script = document.createElement('script'); script.src = 'https://cdn.jsdelivr.net/npm/chart.js'; script.onload = function() { calculateWeightLoss(); // Initial calculation after chart lib loads }; document.head.appendChild(script); } else { calculateWeightLoss(); // Calculate immediately if Chart.js is already loaded } } // Initial setup window.onload = loadChartJs;

Leave a Comment