Use the Body stats
How this Body stats works
This tool groups the most useful body-composition numbers in one place: BMI, waist-to-height ratio (WHtR), a rough body-fat estimate, and a practical daily protein range. None of them is perfect on its own, but together they give a useful picture for planning.
Calculation method
BMI = weight (kg) ÷ height² (m). WHtR = waist ÷ height. Body-fat uses the U.S. Navy method (waist/neck/height ratios for men, and adds hip for women when provided). Protein target is 1.6–2.2 g per kg of body-weight for most active adults.
Real-life uses
- Checking progress alongside scale weight
- Picking a realistic daily protein target
- Setting a waist-measurement goal instead of only a scale goal
- Baselining before a fat-loss or muscle-gain phase
Frequently asked questions
Is BMI useful?
For general populations, yes. It is less useful for very muscular people, very short people, or the very tall.
What is a good waist-to-height ratio?
Under 0.5 is typically considered a healthy range for adults.
How accurate is the body-fat estimate?
Within a few percent for most people. Bodpod, DEXA and hydrostatic testing are more precise but much harder to access.