BMR Calculator
Estimate your Basal Metabolic Rate (BMR) — the number of calories your body needs at complete rest — using the Mifflin-St Jeor formula.
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Basal Metabolic Rate
0 kcal/day
Sedentary (little exercise)
0 kcal
Light Activity
0 kcal
Moderate Activity
0 kcal
Very Active
0 kcal
About BMR Calculator
Your Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest just to maintain basic functions like breathing and circulation. This calculator uses the Mifflin-St Jeor equation, widely regarded as one of the most accurate BMR formulas. The activity-level figures below give a rough estimate of daily calorie needs by multiplying BMR by a standard activity factor.
Note: BMR is an estimate based on population averages and does not account for individual differences in muscle mass, hormones or metabolism. Consult a healthcare professional for personalized guidance.