Health & Fitness
Calories Burned Calculator
Calories Burned Calculator is a browser-based calculator tool on CalcToolsBase. Estimate calories burned during exercise from the activity, your weight, and how long you went. To use it, enter your values and view the result directly in your browser — no signup and nothing to install.
Use Calories Burned Calculator to estimate the calories you burn: give it your weight, activity and duration, press Calculate, and read off the calories burned — all worked out on your device.
About this calculator
The Calories Burned Calculator is a browser-based tool that helps you estimate the calories you burn. You enter your weight, activity and duration, and it applies the formula calories = MET × 3.5 × weight(kg) ÷ 200 × minutes to return the calories burned. Everything runs locally — no sign-up, no uploads, nothing stored — so it stays fast and private.
MET values are averages and real burn depends on pace, fitness, terrain, and efficiency. Use the estimate to compare activities rather than as an exact calorie count.
How to use
- Enter your body weight in kilograms for the MET formula.
- Choose the activity you performed.
- Enter how many minutes you exercised.
- Press Calculate to see estimated calories burned.
Why use Calories Burned Calculator
Fast
Calculations run in your browser. No round trip to a server.
Private
Your inputs never leave your device. Nothing is uploaded.
Free
No signup, no paywall, no ads-in-results, no watermarks.
Educational
Uses common estimation formulas for educational purposes. Results are not medical advice and should not replace professional guidance.
Mobile-ready
Optimised for phones, tablets, and desktops alike.
Transparent
Clear about formulas used and their limits, with disclaimers where they matter.
Common uses
Calories Burned when tracking progress over time
Calories Burned for comparing before-and-after
Calories Burned when logging weekly numbers
Calories Burned alongside a workout plan
Calories Burned when learning what a metric means
Calories Burned for setting realistic training goals
Technical notes
This calculator estimates calories using: calories = MET × 3.5 × body weight in kg ÷ 200 × minutes. MET values are activity estimates, so the result should be treated as an approximate fitness estimate, not a medical measurement.
A training estimate from the figures you enter; real results vary with fitness, terrain and conditions, so use it as a guide.
Because it runs locally, results appear instantly with no server round-trip.
FAQ
How are calories burned estimated?
We use the MET formula: calories ≈ MET × 3.5 × weight(kg) ÷ 200 × minutes. Higher-intensity activities have larger MET values and burn more per minute.
What is a MET?
A MET, or metabolic equivalent, expresses an activity’s intensity relative to sitting quietly. Walking is about 3.5 MET, while running can be around 9.8 MET.
Why does weight affect the result?
Heavier bodies use more energy to perform the same movement, so calories burned scale with body weight in the MET formula.
Does the Calories Burned Calculator send my data to a server?
No. The Calories Burned Calculator runs entirely in your browser — your inputs never leave your device, and nothing is uploaded or stored.
Worked example
Running (MET 9.8) for 30 minutes at 70 kg burns MET × 3.5 × kg ÷ 200 × minutes = 9.8 × 3.5 × 70 ÷ 200 × 30 ≈ 360 kcal. This is an estimate only.