Free Mifflin-St Jeor Calculator
Calculate your BMR and TDEE using the Mifflin-St Jeor equation — the most accurate formula recommended by the Academy of Nutrition and Dietetics.
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About the Mifflin-St Jeor Equation
The Mifflin-St Jeor equation was published in 1990 and is widely regarded as the most accurate predictive equation for estimating BMR in the general population. It is recommended by the Academy of Nutrition and Dietetics.
Men: BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age) + 5
Women: BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age) − 161
TDEE is calculated by multiplying BMR by an activity factor ranging from 1.2 (sedentary) to 1.9 (extremely active).