What This Tool Does

Waist-to-height ratio (WHtR) measures waist circumference relative to height and is widely used to screen central fat distribution and metabolic risk. It is simple, practical, and suitable for routine self-checks.

How To Use

1. Choose a unit system (cm or inch).
2. Enter waist and height using the same unit.
3. Click "Calculate" to get your WHtR value and risk band.
4. Review the guidance and track your trend over time.

Formula and Ranges

• Formula: WHtR = waist / height.
• Common adult rule: WHtR < 0.50.
• Reference bands: < 0.40 underweight, 0.40-0.49 healthy, 0.50-0.59 overweight, >= 0.60 obese.

Use Cases

• Daily health tracking at home.
• Waist control monitoring during fat-loss phases.
• Before/after comparison for diet and training adjustments.

Notes

• Measure at a similar time and posture for better consistency.
• Take waist measurement after a normal exhale with a snug tape.
• Results are for reference and do not replace medical diagnosis.

FAQ

Should I use WHtR or BMI

Both are useful. If your focus is abdominal fat and metabolic risk, WHtR is often more sensitive.

How often should I recheck WHtR

Every 2-4 weeks is usually enough; focus on trend rather than single-point fluctuation.