# Katch-McArdle Calculator

Katch-McArdle calculator is another tool that helps you to keep healthy and fit. The Katch-McArdle formula differs from the one of Harris-Benedict equation because it additionally takes into account lean body mass.

## What is Katch-McArdle calculator?

Katch-McArdle calculator is a quick and easy tool that enables you to calculate your BMR (basal metabolic rate). A basal metabolic rate is the amount of energy used by an individual at rest in a 24 hour day.

You may also want to check out the Mifflin St Jeor equation.

## What is Katch-McArdle formula?

To apply the Katch-McArdle formula you need these two factors: Basal Metabolic Rate and Lean Body Mass.

- BMR = 370 + (21.6 x Lean Body Mass(kg) )
- Lean Body Mass = (Weight(kg) x (100-(Body Fat)))/100

You may also be interested in LBM calculator (lean body mass calculator).