BMR inputs
Find a baseline calorie estimate before activity adjustments.
BMR
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Light activity estimate
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Planning note
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Health
BMR Calculator
Estimate basal metabolic rate using age, sex, height, and weight.
Health calculators are informational and are not medical advice.
Formula
Mifflin-St Jeor: men = 10W + 6.25H - 5A + 5; women = 10W + 6.25H - 5A - 161.
Example
A 30-year-old male at 175 cm and 72 kg has a BMR near 1,650 calories per day.
Result notes
- Results are estimates based on the values you enter.
- Calculators with schedules show how values change over time.
- For financial, health, or construction decisions, compare these estimates with professional advice when needed.
Frequently asked questions
What is BMR?
BMR estimates calories your body uses at rest for basic functions.
Why add activity?
Most people burn more than BMR because daily movement and exercise add energy use.
Is this exact?
No. It is a useful estimate, not a lab measurement.