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Calorie Burn Calculator

A free MET-based Calorie Burn Calculator that estimates how many calories you burn across 25+ activities including running, cycling, swimming, HIIT, yoga, strength training, and everyday tasks. Enter your weight and duration to see total calories, per-minute burn, and a side-by-side comparison across activities. Everything runs in your browser — no uploads, no accounts.

Your Weight

Used to estimate energy expenditure

Weight (kg)

Duration (min)

Activity

Intensity

Calories Burned

396kcal

🏃‍♂️ Running (10 km/h) · 30 min · Moderate · MET 10.8

≈ 13.2 kcal/min

30-Minute Equivalent

396 kcal

Time for 100 kcal

7.6 min

How Activities Compare (30 min)

Jump Rope496.1 kcal

Running (12 km/h)466.7 kcal

Cycling (vigorous, >19 km/h)404.3 kcal

Swimming (vigorous)396.9 kcal

Running (10 km/h)396.9 kcal

Running (8 km/h)334.4 kcal

HIIT Workout323.4 kcal

Stair Climbing323.4 kcal

Estimates are based on the MET compendium and vary with fitness, muscle mass, and metabolism. Use them for planning, not prescription.

Frequently Asked Questions

Everything you need to know about estimating calories burned

How are calories burned estimated?

We use the standard MET (metabolic equivalent) method: calories per minute = MET × 3.5 × weight(kg) ÷ 200, multiplied by your exercise duration. MET values come from the Compendium of Physical Activities. The estimate is affected by weight, intensity, and individual metabolism.

How accurate is this calculator?

MET-based estimates are a widely used approximation and typically within ±20% for most people. Actual burn varies with fitness level, muscle mass, age, and exercise efficiency. Wearables can give more personalized readings but often overestimate.

Does intensity affect calories burned?

Yes. We provide activities at light, moderate, and vigorous MET values (e.g., cycling at leisure vs. vigorous pace). Higher intensity burns more calories per minute, and also raises after-burn (EPOC) effects.

Is my data private?

Completely. All calculations happen in your browser — your weight and activity data never leave your device. No accounts, no uploads, no tracking.

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