When to use Calorie Calculator
You're starting a cut before a summer trip and want a calorie target that isn't just a guess. Enter your age, weight, height, sex, and activity level — sedentary to very active — and the Mifflin-St Jeor equation returns your TDEE, the total daily calories your body burns to maintain current weight. Research consistently ranks Mifflin-St Jeor as the most accurate formula for most adults. Subtract 500 calories to aim for roughly one pound of loss per week; add 300 to 500 to gain. The result gives you maintenance, loss, and gain targets in one screen so you can decide which direction to head. Your personal stats stay in the browser tab and never leave the page.
- Set a calorie target before a summer cut or bulk
- Recalculate TDEE after a big change in weekly exercise
- Find a maintenance number before a doctor's nutrition consult