Fitness calculators
No accounts. No ads. Just numbers.
Burnr is a collection of simple, accurate fitness calculators for people who want fast answers without the fluff.
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BMR & TDEE
Calculate your Basal Metabolic Rate and Total Daily Energy Expenditure. Get calorie targets for maintenance, cut, and bulk.
BMRTDEECutBulk
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Treadmill
Estimate calories burned and steps for flat treadmill runs or walks. Automatically switches between ACSM walking and running formulas based on speed.
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Incline Treadmill
Estimate calories burned and steps for incline treadmill sessions. Supports walking and running with ACSM 2021 formulas.
CaloriesStepsDurationSpeed