Free Health Tool
BMR Calculator
Discover how many calories your body burns at complete rest using the clinically validated Mifflin-St Jeor Equation.
Calculate Your BMR
Estimate Your Total Calorie Needs
Multiply your BMR by the activity factor that best matches your lifestyle.
×1.200
Sedentary
Little or no exercise
× 1.200
×1.375
Lightly Active
1–3 days/week exercise
× 1.375
×1.550
Moderately Active
3–5 days/week exercise
× 1.550
×1.725
Very Active
6–7 days/week exercise
× 1.725
Based on the Mifflin-St Jeor Equation (1990) — the gold standard used by nutrition professionals worldwide.