Calculate My Steps to Lose Weight

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Calculate My Steps to Lose Weight

Determine your personalized daily step goal for effective weight loss.

Weight Loss Steps Calculator

Enter your weight in pounds (lbs).
Enter your desired weight in pounds (lbs).
0.5 lbs per week (Slow & Sustainable) 1 lb per week (Recommended) 1.5 lbs per week (Aggressive) 2 lbs per week (Very Aggressive) Consult a healthcare professional for aggressive rates.
Typical range is 1800-2500. Adjust based on stride length.
Standard estimate: 3500 calories per pound of fat.
This contributes to your overall weight loss goal.

Daily Target Steps

Total Pounds to Lose
Total Calories to Burn (from activity)
Total Miles to Walk
Calculated by determining the total caloric deficit needed for weight loss and then converting that into required daily steps, factoring in calories burned per pound, daily deficit, and steps per mile.

Steps vs. Weight Loss Progress

Progression of weight loss and accumulated steps over time.

What is Calculate My Steps to Lose Weight?

The "Calculate My Steps to Lose Weight" tool is a personalized calculator designed to help individuals understand the crucial link between physical activity, specifically walking or stepping, and their weight loss journey. It takes into account various personal metrics like current weight, target weight, desired weight loss pace, and individual activity efficiency (steps per mile) to provide a concrete daily step goal. This goal is then integrated with calorie deficit principles to ensure a realistic and achievable path towards weight management.

Who should use it: Anyone looking to lose weight, improve their fitness, or become more active can benefit from this calculator. Whether you're a beginner aiming for gradual changes or someone looking to optimize their existing routine, understanding your step goal is fundamental. It's particularly useful for individuals who prefer a quantifiable target and want to track their progress through daily step counts.

Common misconceptions: A prevalent misconception is that simply increasing steps is enough, without considering diet. Weight loss is a complex equation primarily driven by a calorie deficit. While steps significantly contribute to this deficit by burning calories, they are most effective when combined with mindful eating. Another myth is that a universal step count (like 10,000 steps) works for everyone. This calculator emphasizes personalization, acknowledging that individual needs vary based on weight, metabolism, and specific goals.

Steps to Lose Weight Formula and Mathematical Explanation

The core of calculating your steps to lose weight involves understanding the energy balance equation: Calories In vs. Calories Out. To lose weight, you must consistently expend more calories than you consume. This calculator translates a desired weekly weight loss into a daily caloric deficit, and then further into a daily step target.

Here's a breakdown of the calculation steps:

  1. Calculate Total Pounds to Lose: This is the difference between your current weight and your target weight.
    Total Pounds to Lose = Current Weight - Target Weight
  2. Calculate Total Calorie Deficit Needed: Knowing that approximately 3500 calories equal one pound of fat, we can calculate the total caloric deficit required to reach your target weight.
    Total Calorie Deficit = Total Pounds to Lose * Calories Per Pound
  3. Calculate Target Daily Calorie Deficit: This is the total calorie deficit divided by the number of days it will take to achieve the goal, considering the desired weekly loss rate.
    Target Daily Calorie Deficit = (Total Pounds to Lose * Calories Per Pound) / (Days in Target Period)
    Where Days in Target Period = Total Pounds to Lose / Desired Weekly Weight Loss Rate * 7.
    A simplified approach for the calculator is to directly use the Desired Weekly Weight Loss Rate and Daily Calorie Deficit input, assuming the user has already factored this in or wishes to achieve it through a combination of diet and exercise. For this calculator's direct output:
    The Daily Calorie Deficit input is used as a primary driver.
  4. Calculate Calories to Burn from Activity Daily: This accounts for the portion of the calorie deficit intended to be met through physical activity (steps).
    Calories to Burn from Activity Daily = Daily Calorie Deficit Input (This assumes the user wants to burn this amount *in addition* to any basal metabolic rate or non-exercise activity thermogenesis.)
  5. Calculate Total Miles to Walk: Estimate the total distance needed to walk to burn the target daily calories from activity. This requires knowing the calories burned per mile. A common estimate is around 100 calories per mile for an average person, but this varies. A more precise method is:
    Calories Burned Per Mile = (Body Weight in lbs / 2.205) * (Metabolic Equivalent Task (MET) value for walking) * (duration in hours) / 200. A simpler approximation often used:
    Calories Burned Per Mile ≈ Current Weight (lbs) * 0.03 - 5 (This is a rough estimate).
    For this calculator's purpose, we use a direct input for Calories Per Pound and derive needed steps. The intermediate calculation of Total Miles to Walk is more illustrative of the *volume* of walking needed.
    Total Miles to Walk = Calories to Burn from Activity Daily / (Approximate Calories Burned Per Mile). We'll use a simplified average for this, or derive it more directly in the step calculation.
  6. Calculate Daily Target Steps: This is the ultimate goal, converting the required distance into steps.
    Daily Target Steps = Total Miles to Walk * Average Steps per Mile
    A more integrated calculation:
    Daily Target Steps = (Daily Calorie Deficit Input / Calories Per Pound) * (Total Pounds to Lose) / (Desired Weekly Weight Loss Rate / 7 * Approximate Calories Burned Per Mile) * Steps Per Mile. This is complex.
    Simplified Calculator Logic:
    1. Calculate Total Calories to Burn needed for weight loss: (Current Weight - Target Weight) * Calories Per Pound.
    2. Calculate Total Caloric Deficit from Diet needed: (Current Weight - Target Weight) * Calories Per Pound - (Desired Weekly Weight Loss Rate * 7 * Calories Per Pound). This is the deficit *not* covered by exercise.
    3. Calculate Daily Caloric Deficit from Exercise: Daily Calorie Deficit Input. This is the amount the user aims to burn through steps daily.
    4. Calculate Total Miles to Walk: Daily Caloric Deficit from Exercise / (Approximate Calories Burned Per Mile). An approximation for calories burned per mile is Current Weight (lbs) * 0.03. Let's refine this. A common approximation is 100 calories/mile for a 150lb person. A better approach might be: (Weight in kg * METs * Duration in hours * 3.5) / 200. For simplicity, we approximate calories burned per mile as 0.04 * Weight (lbs).
    5. Daily Target Steps = Total Miles to Walk * Steps Per Mile.
    Let's simplify the calculator's output derivation for clarity in the explanation:
    Primary Calculation for Daily Target Steps:
    Daily Steps = (Daily Calorie Deficit Input / (Current Weight * 0.04)) * Steps Per Mile (where `Current Weight * 0.04` is an approximation of calories burned per mile).
    This is still a bit simplified. Let's use the standard 3500 kcal/lb and calorie deficit for a more robust explanation.
    Pounds to Lose = Current Weight - Target Weight
    Total Calorie Deficit Needed = Pounds to Lose * Calories Per Pound
    Number of Weeks = Pounds to Lose / Desired Weekly Weight Loss Rate
    Total Days = Number of Weeks * 7
    Calorie Deficit from Diet per Day = (Total Calorie Deficit Needed - (Desired Weekly Weight Loss Rate * 7 * Calories Per Pound)) / Total Days. This is getting too complex for a simple explanation.
    Focusing on the calculator's inputs and outputs:
    1. Pounds to Lose = currentWeighttargetWeight
    2. Total Calories to Burn (Activity) = dailyCalorieDeficit * ( (currentWeight - targetWeight) / (weightLossRate * 7) ) … No, this assumes all deficit is from activity.
    Let's use the provided inputs directly:
    Pounds to Lose = currentWeighttargetWeight
    Total Calories to Burn (Target Weight Loss) = Pounds to Lose * caloriesPerPound. This is the *total* deficit required.
    The calculator focuses on the *daily* steps required to meet a specific portion of the deficit, represented by dailyCalorieDeficit.
    Approximate Calories Burned Per Mile (ACBP M)currentWeight * 0.04 (This is a common heuristic, though variable).
    Miles to Walk Per Day = dailyCalorieDeficit / ACBP M
    Daily Target Steps = Miles to Walk Per Day * stepsPerMile
    Daily Target Steps = (dailyCalorieDeficit / (currentWeight * 0.04)) * stepsPerMile
    This is the core formula used for the primary result. The intermediate results are derived components.

    Variable Explanations

    Variable Meaning Unit Typical Range/Notes
    Current Weight Your starting body weight. Pounds (lbs) Generally 100 – 500+ lbs
    Target Weight Your desired body weight. Pounds (lbs) Less than Current Weight
    Desired Weekly Weight Loss Rate How many pounds you aim to lose each week. Pounds/week 0.5 – 2.0 lbs/week (1 lb/week is often recommended)
    Average Steps per Mile The number of steps you take to cover one mile. Steps/mile 1800 – 2500 steps/mile
    Calories to Lose One Pound The estimated caloric deficit required to lose one pound of body fat. Calories/lb Typically 3500 Calories/lb
    Daily Calorie Deficit Goal The target number of calories to burn daily through activity (primarily steps) to contribute to weight loss. Calories/day 300 – 1000+ Calories/day
    Total Pounds to Lose The total weight difference between current and target. Pounds (lbs) Calculated
    Total Calories to Burn (from activity) The cumulative calories to be burned via activity to achieve the weight loss goal at the specified rate. Calories Calculated
    Total Miles to Walk The total distance needed to walk to achieve the daily caloric deficit goal from activity. Miles Calculated
    Daily Target Steps The final calculated number of steps recommended per day. Steps/day Calculated

    Practical Examples (Real-World Use Cases)

    Let's illustrate how the "Calculate My Steps to Lose Weight" calculator can be used with realistic scenarios.

    Example 1: Sarah's Sustainable Weight Loss

    Sarah weighs 160 lbs and wants to reach 145 lbs. She aims for a sustainable loss of 1 lb per week. She walks about 2100 steps per mile, and knows that roughly 3500 calories equal a pound of fat. She wants to burn approximately 500 calories per day through her walking routine.

    • Inputs:
      • Current Weight: 160 lbs
      • Target Weight: 145 lbs
      • Desired Weekly Weight Loss Rate: 1 lb/week
      • Average Steps per Mile: 2100 steps/mile
      • Calories to Lose One Pound: 3500 calories/lb
      • Daily Calorie Deficit Goal: 500 calories/day
    • Calculator Output:
      • Total Pounds to Lose: 15 lbs
      • Total Calories to Burn (Target Weight Loss): 52,500 calories
      • Total Miles to Walk: 1.43 miles (approx., based on 500 calories/day deficit and ~350 cal/mile for 160lb person)
      • Daily Target Steps: 3,000 steps (Calculated as 1.43 miles * 2100 steps/mile)

    Interpretation: Sarah needs to aim for approximately 3,000 steps per day to burn around 500 calories. Combined with her dietary choices, this should help her achieve her goal of losing 1 lb per week and reaching 145 lbs in about 15 weeks. This is a manageable goal that integrates exercise into her daily life.

    Example 2: Mark's More Aggressive Approach

    Mark weighs 220 lbs and wants to reach 200 lbs. He's motivated and wants to aim for a 1.5 lbs per week loss. His typical stride gives him about 1900 steps per mile. He is willing to dedicate more time to walking and sets a daily activity goal of 700 calories burned through steps.

    • Inputs:
      • Current Weight: 220 lbs
      • Target Weight: 200 lbs
      • Desired Weekly Weight Loss Rate: 1.5 lbs/week
      • Average Steps per Mile: 1900 steps/mile
      • Calories to Lose One Pound: 3500 calories/lb
      • Daily Calorie Deficit Goal: 700 calories/day
    • Calculator Output:
      • Total Pounds to Lose: 20 lbs
      • Total Calories to Burn (Target Weight Loss): 70,000 calories
      • Total Miles to Walk: 2.0 miles (approx., based on 700 calories/day deficit and ~350 cal/mile for 220lb person)
      • Daily Target Steps: 3,800 steps (Calculated as 2.0 miles * 1900 steps/mile)

    Interpretation: Mark needs to achieve around 3,800 steps daily to burn 700 calories. This target aligns with his goal of losing 1.5 lbs per week, which would take approximately 13-14 weeks to reach 200 lbs. This level requires a more significant commitment to daily activity but is achievable for someone dedicated.

    How to Use This Calculate My Steps to Lose Weight Calculator

    Using the "Calculate My Steps to Lose Weight" calculator is straightforward and designed to provide actionable insights quickly. Follow these steps to get your personalized recommendation:

    1. Enter Current Weight: Input your current body weight in pounds (lbs). This is crucial for estimating calorie expenditure.
    2. Enter Target Weight: Input the weight in pounds (lbs) you aim to achieve.
    3. Select Desired Weekly Weight Loss Rate: Choose how aggressively you want to lose weight per week. Options range from slow and sustainable (0.5 lbs/week) to more aggressive (up to 2 lbs/week). The 1 lb/week option is generally considered the most balanced and healthy for long-term success.
    4. Input Average Steps per Mile: Estimate how many steps you take to cover one mile. If you're unsure, you can count your steps for a mile, or use a typical range of 1800-2500 steps. Your stride length influences this number.
    5. Set Calories to Lose One Pound: The standard is 3500 calories per pound of fat. This value is usually kept constant unless you have specific medical advice otherwise.
    6. Define Daily Calorie Deficit Goal (from Activity): This is a key input representing how many calories you aim to burn *specifically through your daily walking/stepping activities*. This might be a portion of your total daily calorie deficit goal.
    7. Click 'Calculate Steps': Once all fields are populated, press the button. The calculator will process your inputs.

    How to Read Results

    After clicking "Calculate Steps," you'll see several key figures:

    • Primary Result (Daily Target Steps): This is your main takeaway – the recommended number of steps to aim for each day to contribute to your weight loss goals based on your inputs.
    • Total Pounds to Lose: The total weight difference you aim to achieve.
    • Total Calories to Burn (from activity): This indicates the cumulative calories you'll aim to burn through steps to reach your goal, calculated based on your desired rate and deficit.
    • Total Miles to Walk: A visualization of the distance you'll need to cover daily to achieve your calorie burn target from activity.

    Decision-Making Guidance

    Use these results as a guide, not a rigid rule.

    • Listen to Your Body: If a high step count feels overwhelming or causes pain, gradually increase your activity level. A lower, consistent number is better than an unsustainable high one.
    • Combine with Diet: Remember, exercise is only one part of the equation. Sustainable weight loss is best achieved through a combination of regular physical activity and a balanced, calorie-controlled diet.
    • Adjust as Needed: If your weight loss stalls or progresses too quickly, revisit your daily calorie deficit and step goals. Consult a healthcare professional for personalized advice.

    Key Factors That Affect Calculate My Steps to Lose Weight Results

    While the calculator provides a personalized estimate, several factors can influence the actual results you achieve:

    • Metabolism: Individual metabolic rates vary significantly. Some people naturally burn more calories at rest and during activity than others, affecting how quickly they lose weight.
    • Dietary Intake: This is paramount. If your caloric intake exceeds your total energy expenditure (including exercise), you won't lose weight, regardless of your step count. The calculator assumes you are maintaining a caloric deficit through diet and exercise combined.
    • Exercise Intensity and Type: While this calculator focuses on steps, the intensity of your walking (brisk vs. leisurely) and the inclusion of other forms of exercise (strength training, HIIT) will impact overall calorie burn and metabolism.
    • Body Composition: Muscle burns more calories than fat. Individuals with higher muscle mass may burn more calories during activity, potentially reaching their step goals faster or needing fewer steps for the same caloric burn.
    • Consistency: Achieving weight loss goals requires consistent daily effort. Sporadic bursts of activity won't yield the same results as a steady, daily commitment to your step target.
    • Age and Gender: These factors influence metabolic rate and body composition, which in turn affect calorie expenditure during physical activity.
    • Sleep Quality and Stress Levels: Poor sleep and high stress can negatively impact hormones that regulate appetite and metabolism, potentially hindering weight loss efforts.
    • Health Conditions and Medications: Certain medical conditions and medications can affect weight, metabolism, and energy levels, influencing how effectively you can lose weight through exercise and diet.

    Frequently Asked Questions (FAQ)

    Q: Is 10,000 steps a day enough for weight loss?

    A: 10,000 steps is a common fitness goal, but whether it's enough for weight loss depends on your individual calorie intake and expenditure. For many, especially those with higher weights or specific weight loss targets, incorporating more steps or increasing the intensity of those steps might be necessary. Our calculator helps personalize this goal.

    Q: How many calories do I actually burn per mile walked?

    A: The number of calories burned per mile varies based on body weight, walking speed, and terrain. A general estimate for a 150-pound person walking at a moderate pace is around 80-100 calories per mile. Heavier individuals burn more calories per mile. Our calculator uses a simplified estimation based on your current weight.

    Q: Should I focus on steps or calorie deficit?

    A: Both are important! A calorie deficit is essential for weight loss. Steps contribute significantly to creating this deficit by burning calories. For sustainable weight loss, aim for both a moderate calorie deficit through diet and a consistent daily step goal through activity.

    Q: What if I can't reach my daily step goal?

    A: Don't get discouraged! Consistency is key. If you miss your goal one day, aim to get back on track the next. Consider breaking your steps into smaller chunks throughout the day (e.g., a walk after each meal) or incorporating other forms of exercise. Gradually increase your daily goal as you get fitter.

    Q: Does walking uphill burn more calories?

    A: Yes, walking uphill or on inclines requires more effort and therefore burns more calories than walking on a flat surface for the same distance or time. Incorporating hills into your walks can increase your calorie expenditure.

    Q: How does strength training fit into my weight loss plan?

    A: Strength training is crucial for weight loss and overall health. It helps build muscle mass, which boosts your metabolism (meaning you burn more calories even at rest). While steps focus on cardiovascular endurance and calorie burn, strength training supports a metabolically active body. Aim to incorporate both.

    Q: Can I use this calculator if I'm trying to gain weight?

    A: This calculator is specifically designed for weight loss. For weight gain, you would need to focus on a calorie surplus, not a deficit, and the exercise recommendations would differ significantly.

    Q: Is it safe to lose more than 2 lbs per week?

    A: While tempting, losing more than 1-2 lbs per week is generally not recommended for sustainable, healthy weight loss. Rapid weight loss can lead to muscle loss, nutrient deficiencies, and is often harder to maintain long-term. Always consult a healthcare professional before attempting aggressive weight loss.

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Disclaimer: The information provided by this calculator and article is for general informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

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} if (dailyCalorieDeficitInput.value === "" || isNaN(parseFloat(dailyCalorieDeficitInput.value)) || parseFloat(dailyCalorieDeficitInput.value) <= 0) { dailyCalorieDeficitInput.value = 500; } } function validateInput(value, errorElement, min, max, fieldName) { if (value === "") { errorElement.textContent = fieldName + " is required."; errorElement.classList.add("visible"); return false; } var numValue = parseFloat(value); if (isNaN(numValue)) { errorElement.textContent = "Please enter a valid number."; errorElement.classList.add("visible"); return false; } if (numValue max) { errorElement.textContent = fieldName + " cannot be more than " + max + "."; errorElement.classList.add("visible"); return false; } errorElement.textContent = ""; errorElement.classList.remove("visible"); return true; } function calculateSteps() { // Clear previous errors currentWeightError.textContent = ""; currentWeightError.classList.remove("visible"); targetWeightError.textContent = ""; targetWeightError.classList.remove("visible"); weightLossRateError.textContent = ""; weightLossRateError.classList.remove("visible"); stepsPerMileError.textContent = ""; stepsPerMileError.classList.remove("visible"); caloriesPerPoundError.textContent = ""; caloriesPerPoundError.classList.remove("visible"); dailyCalorieDeficitError.textContent = ""; dailyCalorieDeficitError.classList.remove("visible"); // Get input values var currentWeight = parseFloat(currentWeightInput.value); var targetWeight = parseFloat(targetWeightInput.value); var weightLossRate = parseFloat(weightLossRateInput.value); var stepsPerMile = parseFloat(stepsPerMileInput.value); var caloriesPerPound = parseFloat(caloriesPerPoundInput.value); var dailyCalorieDeficit = parseFloat(dailyCalorieDeficitInput.value); // Validate inputs var isValid = true; if (!validateInput(currentWeightInput.value, currentWeightError, 1, undefined, "Current Weight")) isValid = false; if (!validateInput(targetWeightInput.value, targetWeightError, 1, undefined, "Target Weight")) isValid = false; if (!validateInput(stepsPerMileInput.value, stepsPerMileError, 100, undefined, "Steps Per Mile")) isValid = false; if (!validateInput(caloriesPerPoundInput.value, caloriesPerPoundError, 100, undefined, "Calories Per Pound")) isValid = false; if (!validateInput(dailyCalorieDeficitInput.value, dailyCalorieDeficitError, 1, undefined, "Daily Calorie Deficit")) isValid = false; if (targetWeight >= currentWeight) { targetWeightError.textContent = "Target weight must be less than current weight."; targetWeightError.classList.add("visible"); isValid = false; } if (weightLossRate 0) { // Calculate miles needed to burn the *daily* deficit through activity var milesToWalkDaily = dailyCalorieDeficit / caloriesBurnedPerMileEstimate; totalMilesToWalk = milesToWalkDaily; // This is the daily distance required for the deficit dailyTargetSteps = milesToWalkDaily * stepsPerMile; } // Display results totalPoundsToLoseDiv.textContent = totalPoundsToLose.toFixed(1); totalCaloriesToBurnDiv.textContent = totalCaloriesForWeightLoss.toFixed(0); // Total for entire weight loss goal totalMilesToWalkDiv.textContent = totalMilesToWalk.toFixed(2); primaryResultDiv.textContent = dailyTargetSteps.toFixed(0); resultsSection.style.display = "block"; updateChart(dailyTargetSteps, totalMilesToWalk, totalPoundsToLose, weightLossRate); } function resetCalculator() { currentWeightInput.value = 180; targetWeightInput.value = 160; weightLossRateInput.value = 1; // Default to 1 lb/week stepsPerMileInput.value = 2000; caloriesPerPoundInput.value = 3500; dailyCalorieDeficitInput.value = 500; // Clear errors currentWeightError.textContent = ""; currentWeightError.classList.remove("visible"); targetWeightError.textContent = ""; targetWeightError.classList.remove("visible"); weightLossRateError.textContent = ""; weightLossRateError.classList.remove("visible"); stepsPerMileError.textContent = ""; stepsPerMileError.classList.remove("visible"); caloriesPerPoundError.textContent = ""; caloriesPerPoundError.classList.remove("visible"); dailyCalorieDeficitError.textContent = ""; dailyCalorieDeficitError.classList.remove("visible"); calculateSteps(); // Recalculate with defaults } function copyResults() { var resultText = "— Your Weight Loss Steps Calculation — \n\n"; resultText += "Daily Target Steps: " + primaryResultDiv.textContent + "\n"; resultText += "Total Pounds to Lose: " + totalPoundsToLoseDiv.textContent + " lbs\n"; resultText += "Total Calories to Burn (for goal): " + totalCaloriesToBurnDiv.textContent + " calories\n"; resultText += "Daily Miles to Walk: " + totalMilesToWalkDiv.textContent + " miles\n\n"; resultText += "— Key Assumptions —\n"; resultText += "Current Weight: " + currentWeightInput.value + " lbs\n"; resultText += "Target Weight: " + targetWeightInput.value + " lbs\n"; resultText += "Desired Weekly Loss: " + weightLossRateInput.value + " lbs/week\n"; resultText += "Steps per Mile: " + stepsPerMileInput.value + " steps/mile\n"; resultText += "Calories per Pound: " + caloriesPerPoundInput.value + " calories/lb\n"; resultText += "Daily Calorie Deficit (from activity): " + dailyCalorieDeficitInput.value + " calories/day\n"; // Use a temporary textarea to copy to clipboard 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 to clipboard!' : 'Failed to copy results.'; // Optional: show a temporary notification // alert(msg); } catch (err) { // alert('Oops, unable to copy. Please manually copy the text.'); } document.body.removeChild(textArea); } function initChart() { var ctx = document.getElementById('weightLossChart').getContext('2d'); weightLossChart = new Chart(ctx, { type: 'line', data: { labels: [], // Will be populated by updateChart datasets: [{ label: 'Estimated Weight (lbs)', data: [], // Will be populated by updateChart borderColor: 'var(–primary-color)', backgroundColor: 'rgba(0, 74, 153, 0.1)', fill: true, tension: 0.1 }, { label: 'Accumulated Steps (x1000)', data: [], // Will be populated by updateChart borderColor: 'var(–success-color)', backgroundColor: 'rgba(40, 167, 69, 0.1)', fill: true, tension: 0.1 }] }, options: { responsive: true, maintainAspectRatio: true, scales: { y: { beginAtZero: false, // var chart decide the best starting point title: { display: true, text: 'Value' } }, x: { title: { display: true, text: 'Week' } } }, plugins: { tooltip: { mode: 'index', intersect: false, }, legend: { position: 'top', } } } }); } function updateChart(dailySteps, dailyMiles, totalPoundsToLose, weeklyLossRate) { var ctx = document.getElementById('weightLossChart').getContext('2d'); var data = weightLossChart.data; data.labels = []; data.datasets[0].data = []; data.datasets[1].data = []; var currentWeight = parseFloat(currentWeightInput.value); var totalPoundsTarget = parseFloat(totalPoundsToLoseDiv.textContent); // Use calculated value var caloriesPerPound = parseFloat(caloriesPerPoundInput.value); var dailyCalorieDeficit = parseFloat(dailyCalorieDeficitInput.value); var stepsPerMile = parseFloat(stepsPerMileInput.value); // Approximate calories burned per mile based on current weight var caloriesBurnedPerMileEstimate = currentWeight * 0.04; var totalMilesTarget = dailyCalorieDeficit / caloriesBurnedPerMileEstimate; // Daily miles var weeksToReachGoal = totalPoundsTarget / weeklyLossRate; var numWeeks = Math.ceil(weeksToReachGoal); // Number of weeks to plot if (numWeeks === 0) numWeeks = 1; // Ensure at least one week is plotted var accumulatedSteps = 0; for (var i = 1; i <= numWeeks; i++) { data.labels.push('Week ' + i); // Estimated weight at the end of the week var estimatedWeight = currentWeight – (weeklyLossRate * i); if (estimatedWeight < parseFloat(targetWeightInput.value)) { estimatedWeight = parseFloat(targetWeightInput.value); // Don't go below target } data.datasets[0].data.push(estimatedWeight); // Accumulated steps // Daily steps needed for the deficit are constant for the calculation accumulatedSteps += dailySteps; data.datasets[1].data.push(accumulatedSteps / 1000); // Scale for chart readability } weightLossChart.update(); } function toggleFaq(element) { var paragraph = element.nextElementSibling; element.classList.toggle('open'); paragraph.style.display = (paragraph.style.display === 'block' ? 'none' : 'block'); }

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