Calorie / TDEE Calculator
betaThis free calorie calculator estimates your BMR (calories burned at rest) and TDEE (total daily calories to maintain your weight) using the Mifflin-St Jeor equation, then suggests daily calorie targets for losing, maintaining or gaining weight. Everything is calculated on your device.
Estimate your daily calorie needs (BMR and TDEE) with the Mifflin-St Jeor formula. Calculated entirely in your browser.
- Lose (−0.5 kg/wk)2,056 kcal / day
- Lose (−0.25 kg/wk)2,306 kcal / day
- Maintain2,556 kcal / day
- Gain (+0.25 kg/wk)2,806 kcal / day
- Gain (+0.5 kg/wk)3,056 kcal / day
How to use Calorie / TDEE Calculator
- 1 Choose metric or imperial units.
- 2 Enter your sex, age, height and weight.
- 3 Pick the activity level that matches your week.
- 4 Read your BMR, TDEE and the calorie targets for each goal.
Frequently asked questions
Is my data uploaded?
No. The calculation happens entirely in your browser — nothing you enter is sent to a server.
What is the difference between BMR and TDEE?
BMR is the calories your body burns at complete rest. TDEE is BMR multiplied by an activity factor — the calories you burn on a typical day, i.e. your maintenance calories.
Which formula does it use?
The Mifflin-St Jeor equation, which is widely regarded as one of the most accurate for estimating BMR from height, weight, age and sex.
How much should I eat to lose weight?
A deficit of about 250–500 kcal/day below your TDEE tends to lose roughly 0.25–0.5 kg per week. The tool shows those targets, but treat them as starting points.