Katch-McArdle BMR for 40 kg Lean Body Mass
A lean body mass of 40 kg corresponds to a Katch-McArdle BMR of roughly 1,069 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.
Lower lean body mass results in a lower basal metabolic rate, which is important to consider when setting calorie goals.
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.