Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Nutrition
BMR Calculator
Estimate your basal metabolic rate (BMR) — the calories your body burns at complete rest — using the revised Harris-Benedict equation. The starting point for calculating how many calories you need to eat to lose, maintain, or gain weight.
Fill in the required fields to see your result.
Fitness
TDEE Calculator
Calculate Total Daily Energy Expenditure (TDEE) by computing BMR via Harris-Benedict equation, then multiplying by an activity factor. Use it as the foundation for evidence-based weight management, sports nutrition, and meal planning.
Fill in the required fields to see your result.
Key differences
| BMR Calculator | TDEE Calculator | |
|---|---|---|
| Category | Nutrition | Fitness |
| Inputs required | 4 | 5 |
| Result | Your BMR (calories/day) | Total Daily Energy Expenditure (calories) |
| What it does | Estimate your basal metabolic rate (BMR) — the calories your body burns at complete rest — using the revised Harris-Benedict equation. The starting point for calculating how many calories you need to eat to lose, maintain, or gain weight. | Calculate Total Daily Energy Expenditure (TDEE) by computing BMR via Harris-Benedict equation, then multiplying by an activity factor. Use it as the foundation for evidence-based weight management, sports nutrition, and meal planning. |