Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Health
BMR & TDEE Calculator
Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) using the Mifflin–St Jeor equation. Essential for setting accurate calorie targets when losing, gaining, or maintaining weight.
Fill in the required fields to see your result.
Health
Lean Body Mass Calculator
Estimate your lean body mass — everything except fat — from height, weight, and sex using the Boer formula. Useful for setting protein, calorie, and medication targets.
Fill in the required fields to see your result.
Key differences
| BMR & TDEE Calculator | Lean Body Mass Calculator | |
|---|---|---|
| Category | Health | Health |
| Inputs required | 5 | 3 |
| Result | Total Daily Energy Expenditure (TDEE) (calories/day) | Lean Body Mass (kg) |
| What it does | Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) using the Mifflin–St Jeor equation. Essential for setting accurate calorie targets when losing, gaining, or maintaining weight. | Estimate your lean body mass — everything except fat — from height, weight, and sex using the Boer formula. Useful for setting protein, calorie, and medication targets. |