BMR Calculator

BMR is basal metabolic rate, the estimated calories your body burns at rest for basic functions. Use this free BMR calculator to find yours.

No. BMR is only resting energy use. Daily calorie needs usually include activity, exercise, and digestion.

This calculator uses the Mifflin-St Jeor formula, the same BMR basis used by CurieFit calorie tools.

This calculator uses the Mifflin-St Jeor equation — a widely trusted formula for estimating basal metabolic rate in healthy adults.

Here's a simple way to think about it: BMR is the calories your body needs at complete rest, while TDEE adds movement, exercise, and daily activity on top of that.

If you want to know how to increase bmr naturally, focus on building muscle, staying active, sleeping well, and avoiding extreme crash diets. These habits support metabolism better than supplements or short-term tricks.

BMR matters because it gives a baseline for safe calorie targets and better bmr for weight loss planning. Knowing your resting needs helps you avoid setting calories so low that recovery, energy, and adherence suffer.

BMR and resting metabolic rate are similar but not identical. A resting metabolic rate calculator usually measures calories under less strict conditions, so RMR is often slightly higher than true BMR.

BMR often declines with age because people tend to lose lean mass and move less over time. That is one reason the basal metabolic rate formula includes age as a direct input.

Eating below BMR is usually not recommended unless a clinician is supervising you. For sustainable bmr for weight loss planning, most people set calories below TDEE instead of dropping under their estimated resting needs.