Katch-McArdle BMR for 45 kg Lean Body Mass
A lean body mass of 45 kg corresponds to a Katch-McArdle BMR of about 1085 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.
Estimate the basal metabolic rate using the Katch-McArdle formula for 45 kg of lean body mass.
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.