Calorie Calculator
First estimate basal metabolic rate with the Mifflin-St Jeor equation. Multiply it by an activity factor to estimate daily maintenance calories.
This calculator is free to use. Enable JavaScript to enter your values and see a result instantly.
How it works
First estimate basal metabolic rate with the Mifflin-St Jeor equation. Multiply it by an activity factor to estimate daily maintenance calories.
Worked example
A more active setting raises the estimate because daily movement uses energy beyond resting metabolism.
Keep in mind
Calorie needs vary with training, body composition, and health. Avoid treating this estimate as a prescription.