Calories & Nutrition
BMR Calculator
Your Basal Metabolic Rate (BMR) is the energy your body uses at complete rest. It's the starting point for any calorie target.
What your result means
Most adults have a BMR between 1,200 and 2,000 kcal/day. Larger people and people with more lean mass tend toward the upper end.
How we calculate this
We use the Mifflin-St Jeor equation, the modern standard for estimating BMR without lab equipment.
Limitations
Equations estimate; only a metabolic cart measures true BMR. Expect the calculated number to be within roughly ±10% of your real value.
Frequently asked questions
Related calculators
Related guides
References
- World Health Organization. https://www.who.int
- NHS — Health A to Z. https://www.nhs.uk
- Centers for Disease Control and Prevention. https://www.cdc.gov
Browse all calculators or read our evidence-based guides.