Home
Back
Katch-McArdle Formula:
| From: | To: |
The Katch-McArdle formula is a method for calculating Basal Metabolic Rate (BMR) that takes into account an individual's lean body mass. It provides a more accurate estimation of calorie needs for people with known body fat percentage.
The calculator uses the Katch-McArdle formula:
Where:
Explanation: The formula calculates lean body mass first, then uses this value to determine the basal metabolic rate, which represents the number of calories your body needs at complete rest.
Details: Accurate BMR estimation is crucial for creating effective nutrition plans, weight management programs, and understanding individual metabolic needs for maintaining, losing, or gaining weight.
Tips: Enter your weight in kilograms and body fat percentage. Ensure accurate body fat measurements for best results. The calculator provides your basal metabolic rate in calories per day.
Q1: Why use Katch-McArdle instead of other BMR formulas?
A: Katch-McArdle is more accurate for individuals with known body fat percentage as it accounts for lean body mass rather than just total body weight.
Q2: How accurate is body fat percentage measurement?
A: Accuracy varies by measurement method. DEXA scans are most accurate, while calipers and bioelectrical impedance provide reasonable estimates for most purposes.
Q3: Should I use this BMR for weight loss calculations?
A: Yes, this BMR can be multiplied by an activity factor to determine Total Daily Energy Expenditure (TDEE), which forms the basis for calorie intake recommendations.
Q4: How often should I recalculate my BMR?
A: Recalculate whenever your weight or body composition changes significantly, typically every 4-8 weeks during a weight management program.
Q5: Does this formula work for all age groups?
A: The formula is generally applicable for adults. For children, elderly, or special populations, consult with healthcare professionals for appropriate metabolic calculations.