BMR Calculator
Estimate basal metabolic rate (resting calorie burn) using the Mifflin-St Jeor equation.
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Save to create a persistent, shareable workspace.
What This Calculator Does
Estimate basal metabolic rate (resting calorie burn) using the Mifflin-St Jeor equation.
It combines Sex, Age, Weight, Height to estimate Estimated BMR, Calories at Complete Rest.
Formula & Method
Notation used in the formulas: R = Estimated BMR; x_{1} = Sex; x_{2} = Age; x_{3} = Weight; x_{4} = Height.
Method summary: inputs are normalized to consistent units, core equations are evaluated, then secondary values are derived and rounded for display.
Use this calculator for quick scenario analysis. Start with baseline values, change one driver at a time, and compare how sensitive the results are to each input shown above.
Inputs Used
- Sex: Used directly in the calculation.
- Age: Used directly in the calculation.
- Weight: Used directly in the calculation.
- Height: Used directly in the calculation.
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