BMR Calculator
Basal Metabolic Rate (BMR) is the number of calories your body needs at complete rest. This calculator compares two widely used formulas: the Mifflin-St Jeor equation (considered most accurate) and the original Harris-Benedict equation.
Inputs
Results
Mifflin-St Jeor
1,706 cal/day
Harris-Benedict
1,780 cal/day
Average BMR
1,743 cal/day
Difference
74 cal
BMR Formula Comparison
Last updated: Reviewed by the CalcMountain editorial team
Frequently Asked Questions
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