Calorie estimate

Estimate the calories your body uses in a day at your usual activity level.

UnitsSex used in the formulaAge (years)Height (inches)Weight (pounds)Activity level

Calories used per day at your activity level

2,250 per day

At rest (BMR)
1,450 per day

Uses the Mifflin-St Jeor equation, which has separate constants for each sex. It is an estimate for healthy adults; real needs vary with body composition, health, medications, pregnancy and more. This is not a diet plan or medical advice. A doctor or registered dietitian can give personal guidance.