Calorie and Exercise Burn Calculator

📖 Tool Introduction

Calories burned come down to three things: the intensity of the activity, expressed as a MET value, your weight, and how long you keep going. Burn equals MET times weight times hours.

This calculator carries MET values for sixteen common activities. Enter your weight and duration for the burn, and see every activity side by side so you can pick the efficient ones.

Combined with your daily intake it estimates the net energy balance, and converts a target weight loss into days at roughly seven thousand seven hundred kilocalories per kilogram of fat.

Every figure you type stays inside this browser tab. The arithmetic runs as plain JavaScript on your own device, so nothing is uploaded to a server, nothing survives after you close the page, and there is no account to create or sign in to. You can enter real numbers without worrying about them leaving your machine.

What comes out is a mathematical projection built on the assumptions you supply, and the assumptions are the part worth checking. Real outcomes turn on details no calculator can see: the exact wording of a loan contract, the policy in force in your city this year, the way your own body responds. Use these numbers to orient yourself and to compare one option against another, then confirm anything that carries real consequences against an official document or a professional who can look at your actual circumstances rather than a generic formula. Where a result feeds into a decision that costs money or affects your health, treat it as the opening of a conversation with someone who can see the whole picture rather than as the answer in itself.

The inputs here are deliberately plain: no file to upload, no network call, no queue to wait in. That keeps the tool fast and private, and it also means no record exists anywhere of what you calculated, so nothing you try here can come back to you later.

✨ Key Features

• MET values and burn for sixteen common activities
• Calculated from weight and duration, so heavier bodies burn more
• Basal rate estimate and daily net energy balance
• Converts a target weight loss into days and weeks
• Side-by-side table of every activity over the same duration
• Recalculates the moment you change any figure, with no waiting and no separate submit step

🚀 How to Use

1. Enter your weight in kilograms and the duration in minutes
2. Choose the activity on the right
3. Enter daily intake and the weight you want to lose
4. The result panel shows the burn, daily balance and days needed
5. The table compares every activity at the same duration

⚠️ Things to Note

• MET values are averages: MET values are population averages. Actual burn varies with fitness, form and ambient temperature, with error up to twenty percent either way
• Weight loss pace varies: Seven thousand seven hundred kilocalories per kilogram of fat is a theoretical figure. Real weight loss involves water and muscle, so it starts fast then slows
• Avoid extreme deficits: A sustained daily deficit above one thousand kilocalories triggers metabolic adaptation and muscle loss, so extreme dieting is not advised
• Computed locally in your browser: Every figure is worked out inside your own browser and nothing is sent to a server. The values disappear when you close the page, so you can safely enter real numbers
• Indicative results only: What you see here is a mathematical projection. For contracts, tax filings or medical decisions, rely on the official documents issued by the relevant authority rather than on this tool