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BMR Calculator
Estimate resting energy expenditure using Mifflin–St Jeor.
- Resting expenditure, kcal/day
- 1,649
How the calculation works
Resting: 10 × kg + 6.25 × cm − 5 × age + 5 for men, −161 for women. Daily expenditure = resting estimate × activity multiplier.
Inputs
- Weight, kg
- Height, cm
- Age, years
- Sex used by the equation
Calculation details
An adult estimate, not for children, pregnancy, or a personal treatment plan. Discuss results with a clinician or dietitian when managing illness or changing your diet.
The formula estimates resting expenditure rather than measuring it. An activity multiplier is an assumption, not a precise exercise assessment.
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Updated: 2026-10-02