BMR Calculator
Your BMR is the energy your body burns just staying alive. Get yours with the Mifflin-St Jeor equation, the modern standard.
BMR (Mifflin-St Jeor)
1,699 kcal/day
This is rest-only energy. Multiply by your activity level with the TDEE calculator for daily needs.
Formula
BMR = 10×kg + 6.25×cm − 5×age + s (s: +5 male, −161 female)How to use the BMR Calculator
- 1Enter age, sex, height and weight
- 2Read your BMR in kcal/day
- 3Head to the TDEE calculator to add activity
Frequently Asked Questions
What is BMR?
Basal Metabolic Rate — the energy your body burns at complete rest for breathing, circulation and brain function. It's typically 60–70% of daily burn.
Mifflin-St Jeor vs Harris-Benedict?
Mifflin-St Jeor (1990) is more accurate for modern populations and is the formula recommended by the Academy of Nutrition and Dietetics.