How Long Should I Walk to Lose Weight Calculator Free

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How Long Should I Walk to Lose Weight Calculator Free

Estimate the time and distance needed to achieve your weight loss goals by walking.

Walking Weight Loss Calculator

Enter your current weight in kilograms (kg).
Enter your desired weight in kilograms (kg).
Select your average walking speed (e.g., 5 km/h is a brisk pace).
How many minutes do you plan to walk each day?
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) Choose your general daily activity level. This influences calorie burn.

Total Weight to Lose: kg

Estimated Calories Burned Per Walk: kcal

Total Calories to Burn: kcal

Estimated Days to Reach Target: days

How it works: We estimate calories burned using the MET (Metabolic Equivalent of Task) formula: Calories Burned per Minute = (MET * 3.5 * Body Weight in kg) / 200. Total calories to lose is calculated based on 1 kg of fat being approximately 7700 kcal. The time to reach your target is then calculated based on daily walking duration and calorie burn.

Key Assumptions:

  • 1 kg of fat ≈ 7700 kcal
  • Weight loss is solely due to walking and calorie deficit from walking.
  • MET value chosen reflects average intensity for the selected activity level.
  • Walking speed and duration are consistent daily.

Walking Progress Chart

Weight Loss Projection Over Time

Weight Loss Breakdown Table

Estimated Weekly Progress
Week Total Days Estimated Weight Loss (kg) Remaining Weight (kg)

What is the How Long Should I Walk to Lose Weight Calculator Free?

The how long should i walk to lose weight calculator free is a specialized tool designed to help individuals estimate the duration and distance they need to walk to achieve a specific weight loss goal. It takes into account personal factors like current weight, target weight, walking speed, daily walking time, and activity level to provide a personalized roadmap. This calculator is invaluable for anyone looking to incorporate walking into their fitness routine for weight management, offering a clear, data-driven approach to setting realistic expectations. It demystifies the process by breaking down the complex relationship between physical activity, calorie expenditure, and weight loss into understandable metrics. Those who are new to fitness or weight loss, or those who want a structured plan, will find this calculator particularly useful. It helps in setting achievable goals and tracking progress effectively.

Who Should Use This Calculator?

Anyone aiming to lose weight through walking can benefit. This includes:

  • Individuals looking to calculate the specific amount of time they need to walk daily or weekly to reach a certain weight loss milestone.
  • People who want to understand how their current walking routine contributes to calorie deficit and weight loss.
  • Beginners in fitness who need guidance on setting realistic walking goals.
  • Those who want to estimate the distance they need to cover to burn a specific number of calories.
  • Anyone seeking a free, accessible tool to support their weight loss journey.

Common Misconceptions About Walking and Weight Loss

Several myths surround walking for weight loss. One common misconception is that walking alone is insufficient for significant weight loss. While diet plays a crucial role, consistent and appropriately timed walking can significantly contribute to a calorie deficit. Another myth is that you need to walk for hours every day to see results. Our calculator shows that even moderate daily walks can lead to substantial weight loss over time, especially when combined with a controlled diet. Some also believe that speed doesn't matter; however, a brisk walk burns more calories than a leisurely stroll, and the calculator accounts for this by allowing you to input your walking speed.

Walking to Lose Weight Formula and Mathematical Explanation

The core of the how long should i walk to lose weight calculator free relies on the principles of energy balance and exercise physiology. The calculation estimates the total calorie deficit required and then determines the walking duration needed to achieve that deficit.

Step-by-Step Derivation:

  1. Calculate Total Weight Loss in Kilograms: This is the difference between your current weight and your target weight.
    Weight Loss (kg) = Current Weight (kg) - Target Weight (kg)
  2. Calculate Total Calories to Burn: Knowing that approximately 7700 kilocalories (kcal) are equivalent to 1 kilogram of body fat, we can determine the total caloric deficit needed.
    Total Calories to Burn (kcal) = Weight Loss (kg) * 7700 kcal/kg
  3. Calculate Calories Burned Per Minute of Walking: This is estimated using the MET (Metabolic Equivalent of Task) formula. The MET value represents the energy expenditure of an activity relative to resting metabolism.
    Calories Burned per Minute = (MET * 3.5 * Body Weight in kg) / 200
    The MET value is influenced by the activity level chosen by the user. For walking, MET values typically range from 2.0 (slow pace) to 5.0 (brisk pace), but the calculator uses a broader range to account for overall activity level impacting basal metabolic rate.
  4. Calculate Calories Burned Per Walking Session: This uses the calories burned per minute and the user's specified daily walking duration.
    Calories Burned Per Walk (kcal) = Calories Burned per Minute * Walking Duration (minutes)
  5. Calculate Total Days to Reach Target: This is the final step, dividing the total calories to burn by the calories burned per walking session.
    Days to Reach Target = Total Calories to Burn (kcal) / Calories Burned Per Walk (kcal)

Variable Explanations:

Here's a breakdown of the variables used in the calculation:

Variable Meaning Unit Typical Range/Input
Current Weight Your starting body weight. kg 1 – 500+
Target Weight Your desired body weight. kg 1 – 500+
Walking Speed Your average pace while walking. Influences MET value. km/h 1 – 8
Walking Duration Per Day The amount of time spent walking each day. minutes 1 – 240+
Activity Level (MET) Represents the intensity of your general daily activity, affecting basal metabolic rate. MET value 3.5 – 9.0
Weight Loss (kg) The total amount of weight you aim to lose. kg Calculated
Total Calories to Burn The total caloric deficit needed to lose the target weight. kcal Calculated
Calories Burned Per Walk Estimated calories expended during a single walking session. kcal Calculated
Days to Reach Target The estimated number of days required to achieve the weight loss goal. days Calculated

Practical Examples (Real-World Use Cases)

Let's illustrate with a couple of scenarios:

Example 1: Moderate Weight Loss Goal

Scenario: Sarah wants to lose 5 kg. She weighs 70 kg and her target is 65 kg. She can commit to walking for 45 minutes each day at a brisk pace of 5.5 km/h. Her general activity level is lightly active (MET 5.0).

  • Inputs:
  • Current Weight: 70 kg
  • Target Weight: 65 kg
  • Walking Speed: 5.5 km/h (This influences the MET calculation indirectly by selecting an appropriate MET value for brisk walking)
  • Walking Duration Per Day: 45 minutes
  • Activity Level: Lightly active (MET 5.0)

Calculations:

  • Total Weight to Lose: 70 kg – 65 kg = 5 kg
  • Total Calories to Burn: 5 kg * 7700 kcal/kg = 38,500 kcal
  • Calories Burned Per Minute: (5.0 MET * 3.5 * 70 kg) / 200 ≈ 6.13 kcal/min
  • Estimated Calories Burned Per Walk: 6.13 kcal/min * 45 min ≈ 276 kcal
  • Estimated Days to Reach Target: 38,500 kcal / 276 kcal/day ≈ 139.5 days

Interpretation: Sarah would need to walk for approximately 45 minutes daily for about 140 days to lose 5 kg, assuming her diet remains constant and this walking routine is her primary calorie-burning activity contributing to the deficit.

Example 2: Significant Weight Loss Goal

Scenario: John aims to lose 15 kg. He currently weighs 95 kg and wants to reach 80 kg. He plans to walk 60 minutes a day at a moderate pace of 5 km/h. He considers himself moderately active (MET 6.5).

  • Inputs:
  • Current Weight: 95 kg
  • Target Weight: 80 kg
  • Walking Speed: 5 km/h
  • Walking Duration Per Day: 60 minutes
  • Activity Level: Moderately active (MET 6.5)

Calculations:

  • Total Weight to Lose: 95 kg – 80 kg = 15 kg
  • Total Calories to Burn: 15 kg * 7700 kcal/kg = 115,500 kcal
  • Calories Burned per Minute: (6.5 MET * 3.5 * 95 kg) / 200 ≈ 10.84 kcal/min
  • Estimated Calories Burned Per Walk: 10.84 kcal/min * 60 min ≈ 650 kcal
  • Estimated Days to Reach Target: 115,500 kcal / 650 kcal/day ≈ 177.7 days

Interpretation: John would need to consistently walk for 60 minutes daily for approximately 178 days to achieve his 15 kg weight loss goal, factoring in his activity level and body weight.

How to Use This How Long Should I Walk to Lose Weight Calculator Free

Using the how long should i walk to lose weight calculator free is straightforward. Follow these steps:

  1. Enter Your Current Weight: Input your weight in kilograms (kg).
  2. Enter Your Target Weight: Input the weight you aim to achieve in kilograms (kg).
  3. Select Your Walking Speed: Adjust the slider or input your average walking speed in km/h. While the calculator uses a general MET for the selected activity level, speed is a key factor in calorie burn.
  4. Specify Walking Duration: Enter the number of minutes you plan to walk each day.
  5. Choose Your Activity Level: Select the option that best describes your general daily physical activity. This helps refine the calorie expenditure calculation.
  6. View Results: Click the 'Calculate' button. The calculator will display your primary result (e.g., days to reach target), along with key intermediate values like total calories to burn and estimated calories burned per walk.
  7. Understand the Formula: Read the explanation to understand how the results were derived.
  8. Analyze the Chart and Table: Visualize your progress over time with the chart and see a week-by-week breakdown in the table.
  9. Copy Results: Use the 'Copy Results' button to save your key metrics and assumptions.
  10. Reset: Use the 'Reset' button to clear the form and start over with different inputs.

How to Read Results:

The main result typically shows the estimated number of days required to reach your target weight. Intermediate values provide context: total weight to lose, total calories needed to burn, and how many calories you're estimated to burn in each walking session. The chart offers a visual projection, and the table offers a structured view of progress.

Decision-Making Guidance:

Use the results to set realistic goals. If the number of days seems too long, consider increasing your daily walking duration, walking at a faster pace, or complementing your walks with dietary adjustments to create a larger calorie deficit. Conversely, if the timeframe is shorter than expected, you can use this information to maintain motivation.

Key Factors That Affect Walking for Weight Loss Results

Several factors influence how effectively you can lose weight by walking:

  1. Dietary Habits: This is arguably the most significant factor. Weight loss occurs when you consume fewer calories than you burn. While walking burns calories, overeating or consuming high-calorie foods can easily negate the deficit created by your walks. A balanced diet is crucial.
  2. Metabolic Rate: Individual metabolic rates vary. Factors like age, sex, muscle mass, and genetics play a role in how many calories your body burns at rest and during activity.
  3. Intensity and Duration of Walks: As shown in the calculator, walking faster (higher speed, thus higher MET value) and walking for longer durations burns more calories per session. Varying intensity (e.g., incorporating hills or intervals) can further boost calorie expenditure.
  4. Consistency: Sporadic walking won't yield the same results as a consistent, daily or near-daily routine. The calculator assumes daily consistency.
  5. Body Composition: Muscle tissue burns more calories than fat tissue. Building muscle mass through complementary strength training can boost your overall metabolism, aiding weight loss.
  6. Environmental Factors: Walking in extremely hot or cold weather can affect perceived exertion and may slightly alter calorie burn. Uneven terrain or carrying weights (like a backpack) will also increase the energy expenditure.
  7. Sleep and Stress: Poor sleep and high stress levels can negatively impact hormones that regulate appetite and fat storage (like cortisol and ghrelin), potentially hindering weight loss efforts.
  8. Health Conditions and Medications: Certain medical conditions (e.g., hypothyroidism) or medications can affect metabolism and weight, influencing the effectiveness of walking for weight loss.

Frequently Asked Questions (FAQ)

Q1: How many calories does walking actually burn?

A1: The number of calories burned walking depends on your weight, the duration, speed, and your overall activity level. Our calculator provides an estimate using the MET formula, typically ranging from 200-500+ kcal per hour for moderate weights and speeds.

Q2: Is walking enough to lose weight?

A2: Walking can be a significant component of weight loss, especially when combined with a calorie-controlled diet. It burns calories, improves cardiovascular health, and can be sustained long-term. However, for most people, combining it with dietary changes yields the best results.

Q3: How fast should I walk to lose weight effectively?

A3: A brisk walking pace, generally considered around 5-6.5 km/h (3-4 mph), is more effective for calorie burning than a slow stroll. The key is to elevate your heart rate and breathe a bit heavier.

Q4: What if my weight loss is slower than the calculator suggests?

A4: Several factors can cause discrepancies. Your diet might be slightly higher in calories than you think, your metabolism might be slower, or your body composition might be changing (e.g., gaining muscle while losing fat). It's also possible the calculator's MET value is an average; your specific exertion might differ.

Q5: Can I use this calculator if I want to gain weight or muscle?

A5: This calculator is specifically designed for weight loss based on calorie deficit. It's not suitable for weight gain or muscle building, which require a calorie surplus and different training strategies.

Q6: Does walking distance matter more than time?

A6: Both time and distance are important, as they relate to calorie burn. Walking a longer distance in the same amount of time implies a faster pace, burning more calories. Conversely, walking for a longer duration, even at a moderate pace, will burn more calories overall than a short, fast walk.

Q7: How accurate are these calculators?

A7: These calculators provide estimates based on widely accepted formulas and averages. Individual results can vary significantly due to unique physiological differences, adherence to the plan, and other lifestyle factors. They serve as excellent guides but aren't definitive predictions.

Q8: What is the role of MET in calculating calorie burn?

A8: MET (Metabolic Equivalent of Task) is a measure of the energy cost of physical activities. 1 MET is the energy expenditure of sitting quietly. Higher MET values indicate more strenuous activities. The formula uses MET to scale the calorie burn based on the intensity of the activity relative to your body weight.

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var weightInput = document.getElementById('weight'); var targetWeightInput = document.getElementById('targetWeight'); var walkingSpeedInput = document.getElementById('walkingSpeed'); var walkingSpeedDisplayInput = document.getElementById('walkingSpeedDisplay'); var walkingDurationPerDayInput = document.getElementById('walkingDurationPerDay'); var activityLevelInput = document.getElementById('activityLevel'); var weightError = document.getElementById('weightError'); var targetWeightError = document.getElementById('targetWeightError'); var walkingSpeedError = document.getElementById('walkingSpeedError'); var walkingDurationPerDayError = document.getElementById('walkingDurationPerDayError'); var activityLevelError = document.getElementById('activityLevelError'); var resultsDiv = document.getElementById('results'); var mainResultSpan = resultsDiv.querySelector('.main-result'); var totalWeightToLoseSpan = document.getElementById('totalWeightToLose'); var caloriesPerWalkSpan = document.getElementById('caloriesPerWalk'); var totalCaloriesToBurnSpan = document.getElementById('totalCaloriesToBurn'); var daysToReachTargetSpan = document.getElementById('daysToReachTarget'); var chartCanvas = document.getElementById('progressChart'); var chartInstance = null; var weightLossTableBody = document.querySelector('#weightLossTable tbody'); var defaultValues = { weight: 70, targetWeight: 65, walkingSpeed: 5, walkingDurationPerDay: 30, activityLevel: '5.0' }; function validateInput(inputElement, errorElement, minValue, maxValue) { var value = parseFloat(inputElement.value); var errorMessage = "; if (isNaN(value) || inputElement.value.trim() === ") { errorMessage = 'This field is required.'; } else if (value maxValue) { errorMessage = 'Value cannot exceed ' + maxValue + '.'; } if (errorElement) { errorElement.textContent = errorMessage; } return !errorMessage; } function calculateMET(activityLevelValue, walkingSpeedValue) { // MET for walking varies with speed. We'll use a base MET for activity level // and consider speed indirectly for context rather than a direct multiplier in this simplified MET formula. // A more complex model could adjust MET based on speed, but for this calc, we use the provided activity level MET. // For a brisk walk (around 5-6 km/h), MET is often cited around 3.5-4.5. // Let's map user-selected activity level to a base MET. // We'll use the selected activity level's value as the primary MET source. // Speed will be mentioned but not directly alter the core MET calculation here. // Let's assume the activityLevel represents a baseline MET for general daily activities. // Walking itself has its own MET values that differ by speed. // For simplicity, we'll use the selected activity level's MET value as the base. // A more precise calculator might ask for walking MET specifically. // For this implementation, we'll proceed with the selected activity level value. return parseFloat(activityLevelValue); } function calculateWeightLoss() { var weight = parseFloat(weightInput.value); var targetWeight = parseFloat(targetWeightInput.value); var walkingSpeed = parseFloat(walkingSpeedInput.value); var walkingDurationPerDay = parseFloat(walkingDurationPerDayInput.value); var activityLevelValue = activityLevelInput.value; var isValid = true; isValid = validateInput(weightInput, weightError, 1) && isValid; isValid = validateInput(targetWeightInput, targetWeightError, 1) && isValid; isValid = validateInput(walkingDurationPerDayInput, walkingDurationPerDayError, 1) && isValid; // Speed validation is handled by range slider but we can add a check if (walkingSpeed 8) { walkingSpeedError.textContent = 'Speed must be between 1 and 8 km/h.'; isValid = false; } else { walkingSpeedError.textContent = "; } if (!isValid) { resultsDiv.style.display = 'none'; return; } if (weight <= targetWeight) { targetWeightError.textContent = 'Target weight must be less than current weight.'; resultsDiv.style.display = 'none'; return; } else { targetWeightError.textContent = ''; } var totalWeightToLose = weight – targetWeight; var totalCaloriesToBurn = totalWeightToLose * 7700; // 1 kg fat = 7700 kcal var currentMET = calculateMET(activityLevelValue, walkingSpeed); var caloriesPerMinute = (currentMET * 3.5 * weight) / 200; var caloriesPerWalk = caloriesPerMinute * walkingDurationPerDay; var daysToReachTarget = totalCaloriesToBurn / caloriesPerWalk; // Update results display mainResultSpan.textContent = daysToReachTarget.toFixed(1) + ' days'; totalWeightToLoseSpan.textContent = totalWeightToLose.toFixed(2); caloriesPerWalkSpan.textContent = caloriesPerWalk.toFixed(2); totalCaloriesToBurnSpan.textContent = totalCaloriesToBurn.toFixed(0); daysToReachTargetSpan.textContent = daysToReachTarget.toFixed(1); resultsDiv.style.display = 'block'; updateChartAndTable(daysToReachTarget, totalWeightToLose, caloriesPerWalk, weight); } function updateChartAndTable(totalDays, totalWeightLoss, caloriesPerWalk, startWeight) { // Update Chart var ctx = chartCanvas.getContext('2d'); if (chartInstance) { chartInstance.destroy(); } var labels = []; var weightData = []; var calorieData = []; // Placeholder for calorie burn over time if needed, or focus on weight var weeks = Math.ceil(totalDays / 7); var step = Math.max(1, Math.floor(weeks / 10)); // Aim for around 10-15 points on chart for (var i = 0; i totalDays) daysElapsed = totalDays; // Ensure last point doesn't exceed total days var weightLostSoFar = (daysElapsed / totalDays) * totalWeightLoss; var currentWeight = startWeight – weightLostSoFar; if (currentWeight 0 && labels[labels.length-1] !== 'Week ' + weeks) { var daysElapsed = totalDays; var weightLostSoFar = totalWeightLoss; var currentWeight = startWeight – weightLostSoFar; if (currentWeight < targetWeightInput.value) currentWeight = targetWeightInput.value; weightData.push(currentWeight); labels.push('Week ' + weeks); } chartInstance = new Chart(ctx, { type: 'line', data: { labels: labels, datasets: [{ label: 'Projected Weight (kg)', data: weightData, borderColor: '#004a99', backgroundColor: 'rgba(0, 74, 153, 0.1)', fill: true, tension: 0.1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: false, title: { display: true, text: 'Weight (kg)' } }, x: { title: { display: true, text: 'Timeframe' } } }, plugins: { title: { display: true, text: 'Weight Loss Projection Over Time' } } } }); // Update Table weightLossTableBody.innerHTML = ''; // Clear previous rows var currentRowWeight = startWeight; var currentRowWeightToLose = totalWeightLoss; var caloriesPerDay = caloriesPerWalk; // Assuming daily walk for (var i = 1; i <= Math.ceil(totalDays / 7); i++) { var daysInThisWeek = (i === Math.ceil(totalDays / 7)) ? (totalDays – (i – 1) * 7) : 7; if (daysInThisWeek <= 0) break; // Avoid empty rows if total days is less than 7 var weightLossThisWeek = (daysInThisWeek / totalDays) * totalWeightLoss; currentRowWeight = startWeight – (i * 7 / totalDays) * totalWeightLoss; if (currentRowWeight < targetWeightInput.value) currentRowWeight = targetWeightInput.value; var remainingWeight = currentRowWeight – targetWeightInput.value; if (remainingWeight < 0) remainingWeight = 0; var row = weightLossTableBody.insertRow(); var cellWeek = row.insertCell(0); var cellDays = row.insertCell(1); var cellLoss = row.insertCell(2); var cellRemaining = row.insertCell(3); cellWeek.textContent = i; cellDays.textContent = Math.min(i * 7, totalDays); cellLoss.textContent = ( (i * 7 / totalDays) * totalWeightLoss ).toFixed(2); cellRemaining.textContent = remainingWeight.toFixed(2); // Ensure final row reflects accurate remaining weight if (i === Math.ceil(totalDays / 7)) { cellDays.textContent = totalDays; cellLoss.textContent = totalWeightLoss.toFixed(2); cellRemaining.textContent = '0.00'; } } } function copyResults() { var resultsText = "Walking Weight Loss Calculation:\n\n"; resultsText += "Primary Result: " + mainResultSpan.textContent + "\n"; resultsText += "————————————\n"; resultsText += "Total Weight to Lose: " + totalWeightToLoseSpan.textContent + " kg\n"; resultsText += "Estimated Calories Burned Per Walk: " + caloriesPerWalkSpan.textContent + " kcal\n"; resultsText += "Total Calories to Burn: " + totalCaloriesToBurnSpan.textContent + " kcal\n"; resultsText += "Estimated Days to Reach Target: " + daysToReachTargetSpan.textContent + "\n"; resultsText += "\nKey Assumptions:\n"; resultsText += "- 1 kg of fat ≈ 7700 kcal\n"; resultsText += "- Weight loss is solely due to walking and calorie deficit from walking.\n"; resultsText += "- MET value chosen reflects average intensity for the selected activity level.\n"; resultsText += "- Walking speed and duration are consistent daily.\n"; var tempInput = document.createElement("textarea"); tempInput.value = resultsText; document.body.appendChild(tempInput); tempInput.select(); document.execCommand("copy"); document.body.removeChild(tempInput); alert("Results copied to clipboard!"); } function resetCalculator() { weightInput.value = defaultValues.weight; targetWeightInput.value = defaultValues.targetWeight; walkingSpeedInput.value = defaultValues.walkingSpeed; walkingSpeedDisplayInput.value = defaultValues.walkingSpeed; // Sync display if used walkingDurationPerDayInput.value = defaultValues.walkingDurationPerDay; activityLevelInput.value = defaultValues.activityLevel; // Clear errors weightError.textContent = ''; targetWeightError.textContent = ''; walkingSpeedError.textContent = ''; walkingDurationPerDayError.textContent = ''; activityLevelError.textContent = ''; resultsDiv.style.display = 'none'; if (chartInstance) { chartInstance.destroy(); chartInstance = null; } weightLossTableBody.innerHTML = ''; } // Event listeners for real-time updates weightInput.addEventListener('input', calculateWeightLoss); targetWeightInput.addEventListener('input', calculateWeightLoss); walkingSpeedInput.addEventListener('input', function() { walkingSpeedDisplayInput.value = this.value; // Update display if separate input used calculateWeightLoss(); }); walkingSpeedDisplayInput.addEventListener('input', function() { walkingSpeedInput.value = this.value; calculateWeightLoss(); }); walkingDurationPerDayInput.addEventListener('input', calculateWeightLoss); activityLevelInput.addEventListener('change', calculateWeightLoss); // Initialize the chart library if it's not already loaded globally // For this example, we assume Chart.js is available globally or included. // If not, you'd need to include it via CDN or a local file. // Example: in // Initial calculation on page load calculateWeightLoss();

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