Free tool
Know your number.
Your Basal Metabolic Rate is how many calories your body burns at rest. Plug in your stats and we'll show it, plus what to eat each day based on your activity level.
What is BMR?
Basal Metabolic Rate (BMR) is the number of calories your body burns at rest just to keep you alive: breathing, circulation and cell repair. It's the baseline for any nutrition plan.
Mifflin-St Jeor (accurate for most people)
Men: 10W + 6.25H − 5A + 5
Women: 10W + 6.25H − 5A − 161
Revised Harris-Benedict
Men: 13.397W + 4.799H − 5.677A + 88.362
Women: 9.247W + 3.098H − 4.330A + 447.593
Katch-McArdle (best if you know your body fat %)
370 + 21.6 × (1 − F) × W
W = weight in kg, H = height in cm, A = age, F = body fat as a decimal. Results are estimates, not medical advice.