🔥 BMR Calculator
Your Basal Metabolic Rate is the number of calories your body burns at complete rest. Calculated using two leading formulas.
yrs
kg
cm
Which formula is more accurate?
Mifflin-St Jeor (1990) — Recommended
Generally considered the most accurate formula for most people. Validated in multiple studies and preferred by dietitians.
Men: BMR = (10 × kg) + (6.25 × cm) − (5 × age) + 5
Women: BMR = (10 × kg) + (6.25 × cm) − (5 × age) − 161
Harris-Benedict (revised 1984)
The original formula, revised in 1984. Tends to overestimate by about 5% compared to Mifflin-St Jeor.
Men: BMR = 88.362 + (13.397 × kg) + (4.799 × cm) − (5.677 × age)
Women: BMR = 447.593 + (9.247 × kg) + (3.098 × cm) − (4.330 × age)
Neither formula accounts for body composition — a muscular person burns more calories at rest than someone of the same weight with higher body fat.