It's the equation most validated against real-world measurement for the general population, and is more accurate than the older Harris-Benedict formula.

How accurate is my TDEE?

It's a solid estimate, but real burn varies with body composition, genetics, and how honestly you rate your activity. Adjust based on how your weight actually responds over a few weeks.

BMR & TDEE Calculator

Calculate your basal metabolic rate (BMR) and daily calories burned (TDEE).

UPDATED · MAY 2026

Units

Sex

Age

Weight

Height

Activity level

Daily calories burned (TDEE)

2,759kcal

BMR1,780 kcal

ACTIVITY×1.55

BMR (at rest)

1,780

TDEE

2,759

Activity factor

×1.55

How to use the BMR & TDEE Calculator

01
Enter your stats. Pick metric or imperial, then your sex, age, weight, and height.
02
Choose your activity level. From sedentary to very active — this scales your resting burn up to a daily total.
03
Read BMR and TDEE. BMR is what you burn at rest; TDEE is your total daily calories burned.

How is it calculated?

BMR uses the Mifflin-St Jeor equation: 10·kg + 6.25·cm − 5·age, then +5 for men or −161 for women. TDEE multiplies BMR by an activity factor (1.2 sedentary up to 1.9 very active). TDEE is the number of calories you burn in a typical day and the baseline for any weight goal.

Frequently asked

The questions readers ask most about the bmr & tdee calculator.

BMR is the energy your body uses at complete rest just to stay alive. TDEE adds the calories burned through daily activity and exercise — it's BMR times your activity factor.

How to use the BMR & TDEE Calculator

How is it calculated?

Frequently asked

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