What is the Calories Burned Calculator?
Estimate calories burned during exercise using MET values from the Compendium of Physical Activities. Our health and fitness calculators use validated, published equations — such as Mifflin-St Jeor for metabolic rate and the U.S. Navy method for body fat — to give you a solid starting point for training and nutrition.
How to use the Calories Burned Calculator
- Enter your body weight, your activity, your duration.
- Results update automatically as you type; you can also press Calculate.
- Read the output: calories burned, per hour.
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With body weight = 70 kg, activity = Running 5 mph, duration = 30 minutes, the Calories Burned Calculator returns calories burned: 294 kcal; per hour: 588 kcal/h.
Tips for better results
- Equations estimate population averages; your individual numbers may differ.
- Track trends over weeks rather than reacting to a single reading.
- Pair calculators with professional guidance for medical conditions, pregnancy or major diet changes.
⚠️ This tool provides general information and is not medical advice. It is not a substitute for diagnosis or treatment by a qualified healthcare professional.
Frequently asked questions
What does the Calories Burned Calculator do?
Estimate calories burned during exercise using MET values from the Compendium of Physical Activities.
How is it calculated?
The Calories Burned Calculator uses this method: kcal/min = MET × 3.5 × weight (kg) ÷ 200.
Can you show an example?
With body weight = 70 kg, activity = Running 5 mph, duration = 30 minutes, the Calories Burned Calculator returns calories burned: 294 kcal; per hour: 588 kcal/h.
Is the Calories Burned Calculator accurate?
It uses standard published formulas and is tested against known values, but results are estimates for guidance. This tool provides general information and is not medical advice. It is not a substitute for diagnosis or treatment by a qualified healthcare professional.
Is this tool free and private?
Yes — the Calories Burned Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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