Katch-McArdle BMR for 50 kg Lean Body Mass
A person with 50 kg of lean body mass has a Katch-McArdle BMR of approximately 1,278 kcal/day.
How to use this tool
- Enter lean body mass in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your bmr and the full breakdown beneath it.
The Katch-McArdle formula calculates resting calorie burn based on lean body mass alone, making it more accurate than weight-based formulas.
Frequently asked questions
- What makes Katch-McArdle different from Mifflin-St Jeor?
- Katch-McArdle uses lean body mass rather than total body weight, so it is more accurate for people who know their body fat percentage. Mifflin-St Jeor only needs weight, height, age, and sex.
- How do I find my lean body mass?
- Subtract fat mass from total weight. Use our Lean Body Mass Calculator to estimate LBM from height, weight and sex using the Boer formula.