Calories Burned

About the Calories Burned

Knowing roughly how many calories an activity burns helps you balance your energy, plan workouts and understand your day. The science uses METs — a standard measure of how intense an activity is compared with rest.

This Calories Burned calculator estimates the calories you use for an activity from its MET value, your weight and the time spent, giving you a practical figure for planning.

How to use the Calories Burned

1. Choose your activity.
2. Enter your weight.
3. Enter how long you did the activity.
4. See the estimated calories burned.

Key features of the Calories Burned

• Estimates calories burned by activity
• Uses standard MET values
• Based on your weight and duration
• Covers everyday and exercise activities
• Private — calculated in your browser

How the Calories Burned works

This calculator applies standard, peer-reviewed formulas used by health professionals and public-health bodies worldwide. Depending on the metric, that includes the World Health Organization (WHO) classification, NHS and CDC guidance, the Mifflin-St Jeor equation for metabolic rate, and the U.S. Navy method for body composition. Inputs are converted between metric and imperial units using exact factors so results are consistent whichever system you use.

All calculations are performed in your browser, so the health information you enter is never sent anywhere.

Tips & best practices

• MET-based figures are estimates — real burn varies with fitness, intensity and individual metabolism.
• Do not "eat back" every estimated calorie, as trackers and formulas tend to overestimate burn.
• Consistency in activity matters more for weight management than the exact calorie figure of any one session.

Standards & accuracy

Uses internationally recognised clinical formulas — WHO, NHS, CDC, the U.S. Navy method and Mifflin-St Jeor — for screening-grade estimates.

Important: these tools provide screening-grade estimates for general information and education only. They are not a medical diagnosis and do not replace professional advice. Always consult a qualified healthcare provider before making health decisions.

Who uses the Calories Burned?

• Balancing calories in and out
• Planning and comparing workouts
• Understanding the effort of daily activities
• Weight-management planning

Privacy & security

The Calories Burned runs entirely inside your web browser. Your data — whether that is a file, figures or text — is processed on your own device and is never uploaded to a server, stored or shared. There is no signup and no account, so you can use it as often as you like while keeping full control of your information. This makes it a safe choice even for confidential and sensitive work.

Why choose Toolinza?

• 100% free — no hidden charges, watermarks or usage caps.
• Private & secure — your data stays on your device.
• Standards-compliant — accurate results suitable for the UK, USA, Canada, Australia, EU, India, Pakistan, the Middle East and worldwide.
• Works everywhere — desktop, tablet and mobile.

Frequently asked questions