Free TDEE calculator

See the energy budget behind your day.

Estimate basal metabolic rate, apply a clear activity multiplier, and compare the full activity range before choosing a calorie target.

Your inputs

Estimate TDEE

Height

Daily estimate

Your energy range

Selected-activity TDEE

2,783 kcal

Basal metabolic rate

1,795 kcal

Formula

Mifflin-St Jeor

Gentle deficit

2,449 kcal

Balanced deficit

2,282 kcal

Activity comparison

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What TDEE means

Total daily energy expenditure is an estimate of all energy used in a day: resting metabolism plus movement, training, and digestion. This calculator estimates BMR with Mifflin-St Jeor, or Katch-McArdle when body-fat percentage is supplied, then multiplies that value by the selected activity factor.

The activity multiplier is usually the largest source of error. Treat the result as a starting hypothesis, then compare it with two to three weeks of consistent intake and scale-weight data.

TDEE vs. BMR

BMR estimates energy used at rest. TDEE adds the energy demands of daily life. A dieting target should normally be based on TDEE, not BMR, because you do not spend the full day completely at rest.

Review formulas and primary sources

Next step

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