BMR Calculator
Your basal metabolic rate, and the calories you burn in a day.
Works in your browser. Nothing you type is sent to us.
| Goal | Calories a day |
|---|
Macros for your goal
BMR Calculator at a glance
- Price
- Free
- Data sent to us
- None, it runs in your browser
- Sign-up
- Not needed
- Formula
- Mifflin-St Jeor
- Gives
- BMR, TDEE, goal calories, macros
- Units
- US or metric
How to use BMR Calculator
- Type your detailsChoose sex, and type age, height and weight in US or metric units.
- Pick activity and goalChoose how active you are and whether to lose, keep or gain weight.
- Read your caloriesSee calories a day for the goal, your BMR and maintenance, and macros in grams.
Your BMR is marked in the result: the calories your body uses at rest, by the Mifflin-St Jeor equation. A 35-year-old woman, 5 ft 5 in and 150 lb, has a BMR of about 1,376 calories a day. Your maintenance calories, the BMR times your activity level, sit beside it.
How it works
BMR Calculator is a web page that does its work on your own device. Everything you type or choose is worked out by your browser and never sent to a server, so nothing is stored and there is nothing to delete. There is no account, no sign-up and no limit on how often you use it.
BMR and RMR
Basal and resting metabolic rate are measured slightly differently in a lab but are within a few per cent of each other, and the equation estimates both.
Other shortcuts
Calorie Calculator · TDEE Calculator · Macro Calculator
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