UtilityBaseCalculators
Calories Burned Calculator
Estimate calories burned for any activity from your weight, duration, and intensity using MET values.
Updated July 10, 2026
How to use the calories burned calculator
- 1Choose your activity from the list.
- 2Enter your body weight and pick kg or lb.
- 3Enter how many minutes you did it.
- 4Read the total calories and burn rate.
Common uses
- Estimating calories burned on a walk or run
- Comparing the burn of different workouts
- Feeding an expenditure number into a diet plan
- Checking a gym session's calorie cost
Frequently asked questions
How are calories burned calculated?
This uses the formula calories = MET × body weight in kilograms × time in hours. MET is the metabolic equivalent of the activity — running at 6 mph is about 9.8 METs, so a 70 kg person burns roughly 9.8 × 70 × 0.5 = 343 calories in 30 minutes.
How accurate is the estimate?
MET values are population averages, so the result is a solid estimate rather than an exact figure. Your real burn depends on fitness, intensity, terrain, and body composition. It's most useful for comparing activities and planning, not precise tracking.
Does it work with pounds?
Yes. Switch the weight unit to pounds and the calculator converts to kilograms internally before applying the MET formula, so you can enter your weight however you know it.
About this tool
The calories burned calculator estimates how many calories an activity burns using its MET value — the metabolic cost relative to resting — and your body weight and duration. Pick from a broad list of activities (walking, running, cycling, swimming, weight training, sports, and everyday tasks), enter your weight in kilograms or pounds and how long you did it, and it returns total calories plus the burn rate per hour and per minute. It shows the MET assumption openly so the number isn't a black box. Everything is computed in your browser.
Like most tools on UtilityBase, the calories burned calculator runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more calculators here.
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