Water Lose Weight Calculator

Water Intake for Weight Loss Calculator

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Water Intake for Weight Loss Calculator

Calculate your optimal daily water intake to support your weight loss goals.

Your Hydration Target

Enter your weight in kilograms.

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 typical daily activity level.

Cool
Moderate
Hot

Select the typical climate you live in.

Enter the average duration of your daily workouts in minutes.

Adjust for excessive sweating (e.g., if you sweat 1 liter more than normal during exercise). Enter value in liters.



Your Daily Water Target

— L

— L

Base Intake (Weight)

— L

Activity Adjustment

— L

Climate Adjustment

— L

Exercise Adjustment

— L

Total Adjustments

Projected Water Needs Over Time

Recommended Water Intake by Weight Category

Weight Category (kg) Recommended Daily Intake (Liters) Notes

What is the Water Intake for Weight Loss Calculator?

The Water Intake for Weight Loss Calculator is a specialized tool designed to help individuals determine their optimal daily water consumption, a crucial, yet often overlooked, component of a successful weight loss plan. It goes beyond generic hydration advice by factoring in personal metrics like body weight, activity levels, climate, and specific exercise routines to provide a tailored recommendation. This calculator simplifies the complex relationship between hydration and metabolism, making it easier for users to set achievable water intake goals.

This tool is ideal for anyone embarking on or maintaining a weight loss journey. Whether you’re a beginner looking for guidance or someone struggling to break through a plateau, understanding your hydration needs is fundamental. It’s particularly beneficial for individuals who:

  • Are unsure how much water they should be drinking daily.
  • Want to leverage hydration to boost their metabolism.
  • Need to compensate for increased fluid loss due to exercise or hot climates.
  • Are looking for a simple, data-driven approach to a key aspect of their diet.

Common misconceptions about water intake for weight loss include believing that more water is always better, regardless of individual needs, or that water alone can cause significant weight loss without other lifestyle changes. This calculator aims to provide a balanced and personalized perspective.

Water Intake for Weight Loss Formula and Mathematical Explanation

The core principle behind recommending water intake for weight loss is to ensure adequate hydration, which supports metabolic processes, aids in nutrient transport, helps regulate body temperature, and can contribute to satiety. While there isn’t a single “weight loss formula” solely for water, established guidelines provide a baseline, which this calculator adjusts for individual factors.

A common starting point for daily water intake is based on body weight. A widely cited recommendation is to drink approximately 30-35 ml of water per kilogram of body weight. This calculator uses a baseline derived from this principle and then adjusts it.

Formula Breakdown:

  1. Base Water Intake: Calculated as Body Weight (kg) × 0.033 Liters/kg. This provides a fundamental daily hydration requirement.
  2. Activity Level Adjustment: Additional water is recommended for increased physical activity.
    • Sedentary: +0 L
    • Lightly Active: +0.5 L
    • Moderately Active: +1 L
    • Very Active: +1.5 L
    • Extra Active: +2 L
  3. Climate Adjustment: Hotter climates increase fluid loss through perspiration.
    • Cool: +0 L
    • Moderate: +0.5 L
    • Hot: +1 L
  4. Exercise Duration Adjustment: For each 30 minutes of intense exercise, an additional 0.5 L is recommended. This is calculated as (Exercise Duration / 30) × 0.5 L.
  5. Sweat Rate Adjustment: A direct addition/subtraction based on estimated excessive fluid loss/retention during exercise.

Total Daily Water Intake = Base Intake + Activity Adjustment + Climate Adjustment + Exercise Duration Adjustment + Sweat Rate Adjustment

Variable Explanations:

Variable Meaning Unit Typical Range
Body Weight The individual’s current body mass. Kilograms (kg) 30 – 200+ kg
Activity Level General daily physical exertion. Categorical (Sedentary to Extra Active) Sedentary, Lightly Active, Moderately Active, Very Active, Extra Active
Climate The ambient temperature and humidity. Categorical (Cool, Moderate, Hot) Cool, Moderate, Hot
Exercise Duration Time spent in moderate to high-intensity physical activity per day. Minutes 0 – 180+ minutes
Sweat Rate Adjustment Estimated additional fluid loss due to exertion/heat. Liters (L) -1.0 – +2.0 L (often positive, sometimes negative if overhydrated previously)
Base Intake Initial water target based solely on body weight. Liters (L) ~1 – 7 L
Activity Adjustment Extra water for physical activity. Liters (L) 0 – 2 L
Climate Adjustment Extra water for environmental heat. Liters (L) 0 – 1 L
Exercise Duration Adjustment Extra water for prolonged exercise. Liters (L) 0 – 3 L+
Total Daily Water Intake The final recommended daily fluid goal. Liters (L) 2 – 10+ L

Practical Examples (Real-World Use Cases)

Understanding the calculator’s output is key. Here are a couple of scenarios:

Example 1: Sarah, an Active Professional

Sarah weighs 65 kg, considers herself moderately active, lives in a moderate climate, and exercises for 45 minutes daily. She sometimes feels she sweats a bit more during longer workouts, estimating an extra 0.3 L loss.

  • Inputs:
  • Weight: 65 kg
  • Activity Level: Moderately Active
  • Climate: Moderate
  • Exercise Duration: 45 minutes
  • Sweat Rate Adjustment: 0.3 L

Calculation:

  • Base Intake: 65 kg * 0.033 L/kg = 2.15 L
  • Activity Adjustment: +1 L (Moderately Active)
  • Climate Adjustment: +0.5 L (Moderate Climate)
  • Exercise Duration Adjustment: (45 / 30) * 0.5 L = 1.5 * 0.5 L = 0.75 L
  • Sweat Rate Adjustment: +0.3 L
  • Total Daily Water Intake: 2.15 + 1 + 0.5 + 0.75 + 0.3 = 4.7 L

Interpretation: Sarah should aim for approximately 4.7 liters of water daily. This accounts for her weight, general activity, environment, and specific workout routine. Consistently meeting this target can help optimize her metabolism and support her weight loss efforts.

Example 2: Mark, a Beginner Exerciser in a Hot Climate

Mark weighs 90 kg. He is just starting to exercise, engaging in light activity 2-3 times a week for about 30 minutes per session. He lives in a hot climate and tends to sweat profusely, estimating an extra 1 liter of fluid loss during his workouts.

  • Inputs:
  • Weight: 90 kg
  • Activity Level: Lightly Active
  • Climate: Hot
  • Exercise Duration: 30 minutes
  • Sweat Rate Adjustment: 1.0 L

Calculation:

  • Base Intake: 90 kg * 0.033 L/kg = 2.97 L
  • Activity Adjustment: +0.5 L (Lightly Active)
  • Climate Adjustment: +1 L (Hot Climate)
  • Exercise Duration Adjustment: (30 / 30) * 0.5 L = 1 * 0.5 L = 0.5 L
  • Sweat Rate Adjustment: +1.0 L
  • Total Daily Water Intake: 2.97 + 0.5 + 1 + 0.5 + 1.0 = 5.97 L

Interpretation: Mark needs a higher water intake of nearly 6 liters per day. The combination of his weight, the hot climate, and significant sweat loss during exercise requires careful attention to hydration. This higher target is essential for maintaining bodily functions, preventing dehydration, and supporting his body’s ability to burn calories effectively during weight loss.

How to Use This Water Intake for Weight Loss Calculator

Using the Water Intake for Weight Loss Calculator is straightforward. Follow these steps:

  1. Enter Your Current Weight: Input your body weight in kilograms into the designated field.
  2. Select Your Activity Level: Choose the option that best describes your typical daily physical exertion from the dropdown menu.
  3. Specify Your Climate: Select the climate you reside in (Cool, Moderate, or Hot).
  4. Input Exercise Duration: If you exercise regularly, enter the average number of minutes you spend doing physical activity each day.
  5. Add Sweat Rate Adjustment: If you know you sweat significantly more or less than average during exercise, enter the estimated difference in liters here. This is an advanced adjustment.
  6. Calculate: Click the “Calculate My Water Target” button.

How to Read Results:

  • Primary Result (Your Daily Water Target): This is the highlighted number representing the total liters of water you should aim to drink daily.
  • Intermediate Values: These show the breakdown of how the total target was reached: your base intake from weight, and adjustments for activity, climate, exercise, and sweat rate.
  • Formula Explanation: Provides a brief overview of the calculation logic used.
  • Chart: Visually represents how your water needs might change based on different assumptions.
  • Table: Offers a quick reference for general intake recommendations based on weight categories.

Decision-Making Guidance: Use the calculated target as a goal. Remember to listen to your body; thirst is a primary indicator of dehydration. Gradually increase your water intake if you are far below the target. This calculator is a guide; consult with a healthcare professional for personalized advice, especially if you have underlying health conditions. Consistent hydration supports metabolism, satiety, and overall well-being, which are all critical for successful weight loss.

Key Factors That Affect Water Intake for Weight Loss Results

While the calculator provides a personalized estimate, several external factors can influence your actual hydration needs and how water impacts your weight loss journey:

  1. Individual Metabolism: People have different metabolic rates. Those with faster metabolisms may require slightly more water to support their increased cellular activity.
  2. Dietary Intake: Foods with high water content (fruits, vegetables) contribute to your total fluid intake. Conversely, high-sodium diets can increase water retention and thirst, requiring more water to flush out excess sodium.
  3. Health Conditions: Certain medical conditions, such as kidney disease, heart failure, or diabetes, can significantly alter fluid balance. Individuals with these conditions must follow specific medical advice regarding water intake.
  4. Medications: Some medications can affect hydration levels, either causing fluid retention or increasing urination. Always discuss potential impacts with your doctor.
  5. Environmental Humidity: Beyond just “hot,” high humidity can make it harder for the body to cool itself through evaporation, potentially increasing internal body temperature and the need for more water.
  6. Intensity and Duration of Exercise: Even within the same activity level, the *type* of exercise matters. High-intensity interval training (HIIT) might cause more sweat loss than steady-state cardio of the same duration. This calculator’s exercise duration helps, but individual sweat response varies.
  7. Muscle Mass: Muscle tissue requires more water than fat tissue. Individuals with higher muscle mass may naturally need more water.
  8. Sleep Quality: Poor sleep can disrupt hormonal balance, including those that regulate appetite and metabolism, indirectly affecting hydration needs and weight management.

Understanding these nuances helps refine your approach to hydration for optimal weight loss and overall health.

Frequently Asked Questions (FAQ)

Q1: Can drinking more water help me lose weight directly?

A1: Water doesn’t directly burn fat, but it plays a supporting role. It can boost metabolism slightly, help you feel fuller (reducing calorie intake), and is essential for the body’s processes involved in breaking down fat.

Q2: What if I don’t like the taste of water?

A2: Try infusing water with fruits (lemon, cucumber, berries) or herbs (mint). You can also consume high-water-content foods like watermelon, celery, and oranges. Herbal teas (unsweetened) also count towards your fluid intake.

Q3: How do I know if I’m drinking enough water?

A3: Besides thirst, pale yellow urine is a good indicator of adequate hydration. Dark yellow urine suggests you need to drink more. Persistent headaches, fatigue, and dry skin can also be signs of dehydration.

Q4: Should I drink water before, during, or after exercise?

A4: It’s best to be hydrated throughout. Drink water before starting, sip during exercise (especially if it’s long or intense), and rehydrate afterward to replace lost fluids.

Q5: Does this calculator account for other beverages?

A5: This calculator focuses on plain water intake, which is ideal for weight loss. While other beverages contribute to hydration, they may also contain calories, sugar, or caffeine that can impact weight loss goals. Prioritize water.

Q6: What is the “Sweat Rate Adjustment”? Is it important?

A6: This is for individuals who have a very high or low sweat rate during exercise compared to the average person. If you’re unsure, it’s often best to leave it at 0 or a small, conservative estimate. Over-adjusting can lead to over or under-hydration.

Q7: Can I reach my target by drinking only sports drinks?

A7: Sports drinks are beneficial for replacing electrolytes during prolonged, intense exercise (over 60-90 minutes). However, they often contain sugar and calories, which can hinder weight loss. Water should be your primary source of hydration.

Q8: Is there such a thing as drinking too much water?

A8: Yes, although rare, it’s possible to drink an excessive amount of water in a short period, leading to a dangerous condition called hyponatremia (water intoxication). Stick to the calculated goal and listen to your body’s signals.

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// Function to get activity level multiplier
function getActivityMultiplier(level) {
var multipliers = {
‘sedentary’: 0,
‘lightly_active’: 0.5,
‘moderately_active’: 1.0,
‘very_active’: 1.5,
‘extra_active’: 2.0
};
return multipliers[level] || 0;
}

// Function to get climate multiplier
function getClimateMultiplier(climate) {
var multipliers = {
‘cool’: 0,
‘moderate’: 0.5,
‘hot’: 1.0
};
return multipliers[climate] || 0;
}

// Function to update chart
function updateChart(weight, activity, climate, exerciseDuration, sweatRate) {
var canvas = document.getElementById(‘waterIntakeChart’);
var ctx = canvas.getContext(‘2d’);
canvas.height = 300; // Set a fixed height for better scaling

// Clear previous chart
ctx.clearRect(0, 0, canvas.width, canvas.height);

var dataPoints = 5;
var weights = [];
var intakes = [];
var baseWeight = weight || 70; // Default to 70kg if no weight entered

// Generate data for the chart (e.g., varying weight)
var weightStep = 15; // Increase weight by 15kg for each data point
for (var i = 0; i < dataPoints; i++) {
var currentWeight = baseWeight + (i * weightStep);
weights.push(currentWeight.toFixed(0));

var baseIntake = currentWeight * 0.033;
var activityAdj = getActivityMultiplier(activity) * 10; // Scale adjustment for visibility
var climateAdj = getClimateMultiplier(climate) * 10; // Scale adjustment
var exerciseAdj = (exerciseDuration / 30) * 0.5 * 10; // Scale adjustment
var sweatAdj = sweatRate * 10; // Scale adjustment

var totalIntake = baseIntake + (activityAdj / 10) + (climateAdj / 10) + (exerciseAdj / 10) + (sweatAdj / 10) ;
intakes.push(totalIntake.toFixed(1));
}

// Chart.js style native chart drawing
var chartWidth = canvas.clientWidth;
var chartHeight = canvas.clientHeight;
var padding = 40;
var availableWidth = chartWidth – 2 * padding;
var availableHeight = chartHeight – 2 * padding;

// Find max intake for scaling
var maxIntake = Math.max.apply(null, intakes.map(Number));
var maxY = maxIntake * 1.2; // Add some buffer

// Draw Y-axis
ctx.beginPath();
ctx.moveTo(padding, padding);
ctx.lineTo(padding, chartHeight – padding);
ctx.strokeStyle = '#ccc';
ctx.stroke();

// Draw X-axis
ctx.beginPath();
ctx.moveTo(padding, chartHeight – padding);
ctx.lineTo(chartWidth – padding, chartHeight – padding);
ctx.strokeStyle = '#ccc';
ctx.stroke();

// Draw Y-axis labels and ticks
var numYLabels = 5;
for (var i = 0; i <= numYLabels; i++) {
var yValue = (maxY / numYLabels) * i;
var yPos = chartHeight – padding – (yValue / maxY) * availableHeight;
ctx.fillStyle = '#666';
ctx.textAlign = 'right';
ctx.fillText(yValue.toFixed(1) + ' L', padding – 5, yPos);
ctx.beginPath();
ctx.moveTo(padding – 5, yPos);
ctx.lineTo(padding, yPos);
ctx.stroke();
}

// Draw X-axis labels and ticks
var numXLabels = weights.length;
for (var i = 0; i < numXLabels; i++) {
var xValue = weights[i];
var xPos = padding + (availableWidth / (numXLabels – 1)) * i;
ctx.fillStyle = '#666';
ctx.textAlign = 'center';
ctx.fillText('~' + xValue + ' kg', xPos, chartHeight – padding + 15);
ctx.beginPath();
ctx.moveTo(xPos, chartHeight – padding);
ctx.lineTo(xPos, chartHeight – padding + 5);
ctx.stroke();
}

// Draw labels for chart data
ctx.fillStyle = '#004a99';
ctx.textAlign = 'center';
for (var i = 0; i < intakes.length; i++) {
var xPos = padding + (availableWidth / (weights.length – 1)) * i;
var yPos = chartHeight – padding – (Number(intakes[i]) / maxY) * availableHeight;
ctx.fillText(intakes[i] + ' L', xPos, yPos – 10);
}

// Draw data series 1 (Water Intake)
ctx.beginPath();
ctx.moveTo(padding, chartHeight – padding); // Start at bottom left
ctx.strokeStyle = '#004a99'; // Primary color
ctx.lineWidth = 2;
for (var i = 0; i < intakes.length; i++) {
var xPos = padding + (availableWidth / (weights.length – 1)) * i;
var yPos = chartHeight – padding – (Number(intakes[i]) / maxY) * availableHeight;
ctx.lineTo(xPos, yPos);
}
ctx.stroke();

// Draw data series 2 (A Baseline Line – e.g., 3L) – Optional, for comparison
var baselineIntake = 3.0;
var baselineYPos = chartHeight – padding – (baselineIntake / maxY) * availableHeight;
ctx.beginPath();
ctx.moveTo(padding, baselineYPos);
ctx.lineTo(chartWidth – padding, baselineYPos);
ctx.strokeStyle = '#6c757d'; // Secondary color
ctx.setLineDash([5, 5]); // Dashed line
ctx.lineWidth = 1.5;
ctx.stroke();
ctx.setLineDash([]); // Reset line dash

// Add legend
var legendHtml = '';
legendHtml += ' Calculated Intake‘;
legendHtml += ‘ Baseline (3L Approx)‘;
document.getElementById(‘chartLegend’).innerHTML = legendHtml;
}

// Function to update table
function updateTable(weight) {
var tableBody = document.getElementById(‘waterIntakeTableBody’);
tableBody.innerHTML = ”; // Clear existing rows

var weights = [40, 50, 60, 70, 80, 90, 100, 110]; // Example weight categories
var baseFactor = 0.033; // Liters per kg

for (var i = 0; i < weights.length; i++) {
var currentWeight = weights[i];
var intake = currentWeight * baseFactor;
var notes = "";
if (currentWeight === weight) {
notes = "Your weight category";
} else if (currentWeight < weight) {
notes = "Lighter than average";
} else {
notes = "Heavier than average";
}

var row = tableBody.insertRow();
var cell1 = row.insertCell(0);
var cell2 = row.insertCell(1);
var cell3 = row.insertCell(2);

cell1.textContent = currentWeight + ' kg';
cell2.textContent = intake.toFixed(2) + ' L';
cell3.textContent = notes;
}
}

function calculateWaterIntake() {
var weightKgInput = document.getElementById('weightKg');
var activityLevelInput = document.getElementById('activityLevel');
var climateInput = document.getElementById('climate');
var exerciseDurationInput = document.getElementById('exerciseDuration');
var sweatRateInput = document.getElementById('sweatRate');

var weightKgError = document.getElementById('weightKgError');
var exerciseDurationError = document.getElementById('exerciseDurationError');
var sweatRateError = document.getElementById('sweatRateError');

// Clear previous errors
weightKgError.textContent = '';
exerciseDurationError.textContent = '';
sweatRateError.textContent = '';

var weightKg = parseFloat(weightKgInput.value);
var activityLevel = activityLevelInput.value;
var climate = climateInput.value;
var exerciseDuration = parseFloat(exerciseDurationInput.value);
var sweatRate = parseFloat(sweatRateInput.value);

var isValid = true;

if (isNaN(weightKg) || weightKg <= 0) {
weightKgError.textContent = 'Please enter a valid weight in kilograms.';
isValid = false;
}
if (isNaN(exerciseDuration) || exerciseDuration < 0) {
exerciseDurationError.textContent = 'Exercise duration cannot be negative.';
isValid = false;
}
if (isNaN(sweatRate)) { // Allow 0 or positive/negative values
sweatRateError.textContent = 'Please enter a valid number for sweat rate adjustment.';
isValid = false;
}

if (!isValid) {
document.getElementById('results').style.display = 'none';
return;
}

// Calculations
var baseIntake = weightKg * 0.033;
var activityAdjustment = getActivityMultiplier(activityLevel);
var climateAdjustment = getClimateMultiplier(climate);
var exerciseDurationAdjustment = (exerciseDuration / 30) * 0.5;

var totalAdjustment = activityAdjustment + climateAdjustment + exerciseDurationAdjustment + sweatRate;
var primaryResult = baseIntake + totalAdjustment;

// Ensure primary result is not negative
if (primaryResult < 0) {
primaryResult = 0;
}

// Display results
document.getElementById('primaryResult').textContent = primaryResult.toFixed(2) + ' L';
document.getElementById('baseIntake').textContent = baseIntake.toFixed(2) + ' L';
document.getElementById('activityAdjustment').textContent = (activityAdjustment).toFixed(2) + ' L';
document.getElementById('climateAdjustment').textContent = (climateAdjustment).toFixed(2) + ' L';
document.getElementById('exerciseAdjustment').textContent = (exerciseDurationAdjustment).toFixed(2) + ' L';
document.getElementById('totalAdjustment').textContent = (totalAdjustment).toFixed(2) + ' L';

document.getElementById('formulaExplanation').textContent = 'Formula: Base Intake (Weight * 0.033) + Activity Adjustment + Climate Adjustment + Exercise Duration Adjustment + Sweat Rate Adjustment.';

document.getElementById('results').style.display = 'block';

// Update chart and table
updateChart(weightKg, activityLevel, climate, exerciseDuration, sweatRate);
updateTable(weightKg);
}

function resetForm() {
document.getElementById('weightKg').value = '70';
document.getElementById('activityLevel').value = 'moderately_active';
document.getElementById('climate').value = 'moderate';
document.getElementById('exerciseDuration').value = '30';
document.getElementById('sweatRate').value = '0';

// Clear errors
document.getElementById('weightKgError').textContent = '';
document.getElementById('exerciseDurationError').textContent = '';
document.getElementById('sweatRateError').textContent = '';
document.getElementById('results').style.display = 'none';

// Reset chart and table to default/empty state if needed
updateChart(70, 'moderately_active', 'moderate', 30, 0);
updateTable(70);
}

function copyResults() {
var primaryResult = document.getElementById('primaryResult').textContent;
var baseIntake = document.getElementById('baseIntake').textContent;
var activityAdjustment = document.getElementById('activityAdjustment').textContent;
var climateAdjustment = document.getElementById('climateAdjustment').textContent;
var exerciseAdjustment = document.getElementById('exerciseAdjustment').textContent;
var totalAdjustment = document.getElementById('totalAdjustment').textContent;
var formula = document.getElementById('formulaExplanation').textContent;

var resultString = "Water Intake for Weight Loss Results:\n\n";
resultString += "Your Daily Water Target: " + primaryResult + "\n";
resultString += "————————————\n";
resultString += "Breakdown:\n";
resultString += "- Base Intake (Weight): " + baseIntake + "\n";
resultString += "- Activity Adjustment: " + activityAdjustment + "\n";
resultString += "- Climate Adjustment: " + climateAdjustment + "\n";
resultString += "- Exercise Duration Adjustment: " + exerciseAdjustment + "\n";
resultString += "- Total Adjustments: " + totalAdjustment + "\n";
resultString += "\n" + formula;

try {
navigator.clipboard.writeText(resultString).then(function() {
alert('Results copied to clipboard!');
}).catch(function(err) {
console.error('Failed to copy: ', err);
// Fallback for browsers that don't support clipboard API
var textArea = document.createElement("textarea");
textArea.value = resultString;
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 ? 'successful' : 'unsuccessful';
console.log('Fallback: Copying text command was ' + msg);
alert('Results copied to clipboard!');
} catch (err) {
console.error('Fallback: Unable to copy', err);
alert('Could not copy results. Please copy manually.');
}
document.body.removeChild(textArea);
});
} catch (e) {
console.error('Clipboard API not available: ', e);
alert('Clipboard API not available. Please copy results manually.');
}
}

// Initial calculation and chart rendering on page load
document.addEventListener('DOMContentLoaded', function() {
// Set initial values for calculation and chart/table updates
var initialWeight = 70;
var initialActivity = 'moderately_active';
var initialClimate = 'moderate';
var initialExercise = 30;
var initialSweat = 0;

// Set default input values
document.getElementById('weightKg').value = initialWeight;
document.getElementById('activityLevel').value = initialActivity;
document.getElementById('climate').value = initialClimate;
document.getElementById('exerciseDuration').value = initialExercise;
document.getElementById('sweatRate').value = initialSweat;

// Perform initial calculation
calculateWaterIntake();

// Ensure results are visible after initial calculation
document.getElementById('results').style.display = 'block';
});

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