Waist-to-height and waist-to-hip ratio
Two simple measures of belly fat, often more telling than BMI.
How it works
Waist-to-height: ideally under 0.5 ("keep your waist to less than half your height"). Waist-to-hip (WHO): higher risk above 0.90 (men) or 0.85 (women).
Results are for guidance only and do not replace professional advice.
Worked example
With the default values:
- Waist (cm, at the navel)84
- Height (cm)175
- Hips (cm)98
- SexMale
you get:
- Waist-to-height ratio0.48 ✓
- Waist-to-hip ratio0.86 ✓
- Ideal waist (< 0.5)under 88 cm
- Abdominal obesity threshold94 cm (risk) · 102 cm (high risk)
Frequently asked questions
How does the “Waist-to-height and waist-to-hip ratio” tool work?
Waist-to-height: ideally under 0.5 ("keep your waist to less than half your height"). Waist-to-hip (WHO): higher risk above 0.90 (men) or 0.85 (women).
What do I need to enter?
Just fill in: waist, height, hips, sex. The result updates as you type.
Can you give an example?
Waist (cm, at the navel): 84; Height (cm): 175; Hips (cm): 98; Sex: Male → Waist-to-height ratio: 0.48 ✓; Waist-to-hip ratio: 0.86 ✓.
Is this calculator free, and is my data private?
Yes. HOD Calc is completely free with no sign-up. The calculation runs in your browser: nothing you type is sent or stored.