BMR Calculator
Estimate basal metabolic rate with Mifflin-St Jeor using age, weight, and height.
Check the entered values.
Estimated result
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Mifflin-St Jeor estimates resting energy; TDEE applies a general activity factor and does not measure actual expenditure.
Mifflin-St Jeor
This estimate combines weight, height, age, and the formula's sex variable to approximate resting energy expenditure.
BMR is not TDEE
Basal metabolism excludes full daily activity. TDEE applies an activity factor for maintenance.
Frequently asked questions
Is this an exact measurement?
No. Calorimetry measures expenditure; this equation estimates it.
Is personal data sent to a server?
No. Calculations run locally in your browser and these values are not stored by default.
Can I use the result as medical advice?
No. It is an educational reference and does not replace individual assessment.
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