How to use the katch-mcardle bmr calculator
Estimate basal metabolic rate from lean body mass, which is more accurate than weight alone for muscular people. Enter body weight, body fat percentage in the fields above; the lean body mass, basal metabolic rate (katch-mcardle) are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “Katch McArdle formula”, “BMR from body fat”, “lean mass metabolism”, “calculate katch-mcardle bmr”, “find lean body mass”.
Formula
Variables
- w — Body weight (kg)
- bf — Body fat percentage (%)
Worked example
With body weight = 70 kg, body fat percentage = 20 %, the calculator gives lean body mass ≈ 56 kg; basal metabolic rate (katch-mcardle) ≈ 1,579.6 kcal/day.
Frequently asked questions
What is the katch-mcardle bmr calculator used for?
Estimate basal metabolic rate from lean body mass, which is more accurate than weight alone for muscular people. It helps with questions such as “Katch McArdle formula”, “BMR from body fat”, “lean mass metabolism”.
What is the formula for the katch-mcardle bmr calculation?
Lean body mass (kg) = w × (1-bf / 100). Basal metabolic rate (Katch-McArdle) (kcal/day) = 370+21.6 × [Lean body mass]. Here w is body weight (kg), bf is body fat percentage (%).
What inputs do I need for the katch-mcardle bmr calculator?
You need body weight in kg, body fat percentage in %. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the katch-mcardle bmr calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the katch-mcardle bmr result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.