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Calorie Calculator

Weight (in kg):

Height (in cm):

Age:

Working Lifestyle:

Sedentary (little or no exercise)
Lightly active (light exercise/sports 1-3 days/week)
Moderately active (moderate exercise/sports 3-5 days/week)
Active (hard exercise/sports 6-7 days a week)
Very active (very hard exercise/sports & physical job or 2x training)

function calculateCalories(event)
event.preventDefault();

// Get the input values
const weight = parseFloat(document.getElementById(‘weight’).value);
const height = parseFloat(document.getElementById(‘height’).value);
const age = parseInt(document.getElementById(‘age’).value);
const lifestyle = document.getElementById(‘lifestyle’).value;

// Calculate the BMR (Basal Metabolic Rate)
let bmr;
if (lifestyle === ‘sedentary’)
bmr = 1.2 * (66 + (13.75 * weight) + (5 * height) – (6.75 * age));
else if (lifestyle === ‘light’)
bmr = 1.375 * (66 + (13.75 * weight) + (5 * height) – (6.75 * age));
else if (lifestyle === ‘moderate’)
bmr = 1.55 * (66 + (13.75 * weight) + (5 * height) – (6.75 * age));
else if (lifestyle === ‘active’)
bmr = 1.725 * (66 + (13.75 * weight) + (5 * height) – (6.75 * age));
else if (lifestyle === ‘very-active’)
bmr = 1.9 * (66 + (13.75 * weight) + (5 * height) – (6.75 * age));

// Display the result
const resultElement = document.getElementById(‘calorieResult’);
resultElement.textContent = `Estimated daily calorie intake: $bmr.toFixed(2) calories`;

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