Calorie Burn Calculator

Zaculators / Health & Fitness

Exercise calorie estimates vary with intensity, technique, and fitness level.

What This Calculator Estimates

Calorie burn during exercise depends on activity type, intensity, duration, and body weight, with heavier individuals generally burning more calories for the same activity due to the additional energy required to move more body mass. This calculator uses MET (Metabolic Equivalent of Task) values — standardized intensity ratings for different activities — combined with your weight and duration to estimate calories burned for a specific activity session.

How to Use This Calculator

  1. Enter weight and activity duration.
  2. Select the activity that best matches your workout.
  3. Click Estimate Burn to view the result.
  4. Review the calorie estimate as a planning figure.
  5. Update the inputs when workout conditions change.

Related Calculators

Calorie Needs · Exercise Duration · Water Intake

Tips for a More Accurate Estimate

Frequently Asked Questions

What is a MET value?
A MET (Metabolic Equivalent of Task) is a standardized measure of how intense an activity is compared to resting, with higher MET values indicating more calories burned per unit of time.

Why does body weight affect calories burned?
Heavier individuals generally burn more calories doing the same activity because moving more body mass requires more energy.

Are calorie burn estimates precise?
No, they're estimates based on average MET values and population data — actual burn varies based on individual fitness level and exact intensity.

Does this account for afterburn effect (EPOC)?
No, this estimates calories burned during the activity itself, not the afterburn effect from intense exercise.

How can I get a more accurate calorie burn estimate?
Wearable fitness trackers with heart rate monitoring can provide more personalized estimates than generic MET-based calculations.

This calculator provides informational health estimates only and is not medical advice. Actual calorie burn varies from person to person.

Last updated: May 11, 2026

About the Calorie Burn Calculator

Free Calorie Burn Calculator — This calculator estimates calories burned during a selected activity using a simplified intensity model and the values you. Instead of estimating or hunting for a formula online, Calorie Burn Calculator does the calculation instantly, right in your browser.

You'll enter Weight, Duration and Activity, and the calculator handles the rest.

How to Use It

The process takes under a minute:

  1. Enter weight.
  2. Add duration, activity.
  3. Review the result — adjust any field to see it update live.

Who This Is For

It's built for anyone who'd rather trust a calculation than guess — students, professionals, and everyday users checking a number they need to be right.

This page also answers common questions like "What is a MET value?" and "How can I get a more accurate calorie burn estimate?" — see the FAQ section above for details.

Good to Know

Will it work on my phone? Yes, the page is fully responsive and works the same on mobile, tablet, or desktop.

Does it store my information? No. The calculation happens in your browser and nothing you enter is saved or sent anywhere.

How accurate is this? Results depend on standard, widely used formulas for this kind of calculation — accuracy is only as good as the numbers you put in, so it's worth double-checking your inputs.

A Note on Precision

Small changes in your inputs can shift the result more than you'd expect, so it's worth running the numbers more than once if you're using this for something important. Treat the output as a strong estimate built on the figures you provide, not a substitute for professional advice where real money or decisions are on the line.

Explore More

Zaculators has 250+ free calculators spanning finance, business, health, tax, and everyday planning. Browse the full calculator directory if Calorie Burn isn't quite the tool you're after.