Basal Metabolic Rate is the number of calories your body burns at complete rest just to keep you alive — breathing, circulating blood, and running your organs — with no activity factored in.

How is BMR different from TDEE?

BMR is your resting burn rate alone. TDEE (Total Daily Energy Expenditure) takes that BMR and multiplies it by an activity factor to estimate the calories you burn in a full day, including movement and exercise.

BMR calculator

Your Basal Metabolic Rate is the calories your body burns at complete rest, before any activity is added.

Age

Weight (lbs)

Height — feet

Height — inches

Resting calories/day

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This is what you'd burn lying in bed all day. Want your full daily number with activity factored in? Try the TDEE calculator or calorie calculator.

How this is calculated

We use the Mifflin-St Jeor equation, generally considered one of the more accurate formulas for estimating resting metabolism without lab equipment: 10 × weight(kg) + 6.25 × height(cm) − 5 × age, plus 5 for men or minus 161 for women.

This is an estimate based on population averages, not a metabolic test. A healthcare provider can measure your actual resting rate if needed.

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