Calculators
BMR calculator
Estimate basal metabolic rate and daily calorie needs.
Free to use · Runs in your browser · No signup
This tool works in your browser. Enable JavaScript to select files and create your download.
How to use BMR calculator
- Enter sex, age, weight, and height.
- Choose your typical activity level.
- Read your BMR and estimated daily calories.
What you need
Nothing to upload. Type or paste directly into the tool; results update as you go.
Your result
BMR and estimated daily calorie needs.
Before you start
Uses the Mifflin-St Jeor equation, which estimates averages. Individual needs vary; this is not medical or nutritional advice.
Questions about BMR calculator
How do I use BMR calculator?
Enter sex, age, weight, and height. Choose your typical activity level. Read your BMR and estimated daily calories.
What does BMR calculator produce?
BMR and estimated daily calorie needs.
What should I check before using BMR calculator?
Uses the Mifflin-St Jeor equation, which estimates averages. Individual needs vary; this is not medical or nutritional advice.
Is what I type sent anywhere?
No. The calculation runs in your browser, and the text or numbers you enter are not uploaded or stored.