Health
BMR Calculator
By the Dailycaltor team · formula-verified · last updated July 2026
Calories your body burns doing nothing.
154 lb = 70 kg · 5'7” = 170 cm
Your BMR
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Details
Sedentary day (×1.2)—
Moderate activity (×1.55)—
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Formula
Mifflin-St Jeor: men BMR = 10×kg + 6.25×cm − 5×age + 5; women use −161 instead of +5. Multiply by an activity factor (1.2–1.9) to get daily calorie needs (TDEE).
Worked examples
- Male, 30, 170 cm, 70 kg → BMR ≈ 1,648 kcal.
- Female, same stats → ≈ 1,482 kcal.
- Even a sedentary day needs ~20% above BMR.
Common mistakes
- Eating at or below BMR long-term without guidance — daily needs are BMR × activity, not BMR alone.
- Confusing BMR with TDEE.
- Expecting the formula to capture unusually high muscle mass exactly.
Source: Mifflin-St Jeor equation. Last updated: July 2026. Educational estimates only.
Questions
What is BMR?
The calories your body burns at complete rest for breathing, circulation and cell function.
BMR vs TDEE?
TDEE = BMR × activity factor; it is what you actually burn across a day.
Why is male BMR higher?
On average more lean mass; the equation's constant reflects population data.
Does BMR drop with age?
Yes, roughly 1–2% per decade in adulthood, partly from muscle loss.
Can I raise my BMR?
Building muscle raises it modestly; crash dieting can lower it.