BMR Calculator
Calculate your basal metabolic rate with the Mifflin-St Jeor, Harris-Benedict and Katch-McArdle formulas, free online.
About this calculator
BMR is the energy your body burns at complete rest. Mifflin-St Jeor: 10·kg + 6.25·cm − 5·age + 5 (men) or − 161 (women). The revised Harris-Benedict equation is shown for comparison, and Katch-McArdle (370 + 21.6 × lean mass) when you enter body fat %. This is general information, not medical advice.