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Your caloriesat rest.

BMR is what your body burns doing nothing at all. Enter your details to get your resting burn with the Mifflin-St Jeor equation, then build a goal on top.

years
lb
ft
in
1,735cal / day
Your basal metabolic rate: calories burned at complete rest.
72cal / hour
Roughly what your body uses each hour just staying alive.

Uses the Mifflin-St Jeor equation, the estimate most dietitians rely on. BMR is your floor. To find daily calories including activity, see the TDEE calculator.

How it works

The floor everything sits on.

Your basal metabolic rate is the energy your body spends just staying alive: keeping your heart beating, your lungs working, and your cells maintained. For most people it is the single biggest chunk of daily calorie use, often 60 to 70 percent.

We calculate it with the Mifflin-St Jeor equation, which research has found to be more accurate for the general population than older formulas. It needs only your weight, height, age, and sex.

BMR is a baseline, not a target to eat at. Add your activity to get TDEE, then set a moderate deficit or surplus from there. The TDEE and calorie calculators do exactly that.

Calculator · FAQ

Questions, answered.

Basal metabolic rate is the number of calories your body burns at complete rest to keep basic functions running, like breathing, circulation, and cell repair. It is the largest share of most people’s daily calorie burn.
Related

Keep reading.

Steps to calories calculator
Estimate the calories you burn for any step count, body weight, and walking pace.
Calorie calculator
Daily calories to maintain, lose, or gain weight, from your stats and activity.
How to count calories
Turn these numbers into a daily habit.
How we check our numbers
The method behind our calorie estimates.

From baseline to results.

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