BMR Calculator
Calculate your Basal Metabolic Rate — the calories your body burns at rest.
Your BMR
calories/day
What Is BMR?
Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions like breathing, circulation, and cell production while at complete rest. BMR accounts for 60–75% of your total daily calorie expenditure.
Mifflin-St Jeor (Male): BMR = 10W + 6.25H − 5A + 5
Mifflin-St Jeor (Female): BMR = 10W + 6.25H − 5A − 161
W = weight in kg, H = height in cm, A = age
Mifflin-St Jeor (Female): BMR = 10W + 6.25H − 5A − 161
W = weight in kg, H = height in cm, A = age