Waist-to-Hip Ratio
0.8
Low risk (WHO guidelines)
- Low: < 0.90
- Moderate: 0.90–0.99
- High: ≥ 1.00
WHO waist-to-hip ratio guidelines. This is one of several body composition metrics.
Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio and assess body composition using WHO guidelines.
Method
Waist-to-hip ratio (WHR) divides waist circumference by hip circumference. WHO guidelines classify risk based on sex-specific thresholds.
Male: Low (<0.90), Moderate (0.90–0.99), High (≥1.00)
Female: Low (<0.80), Moderate (0.80–0.85), High (>0.85)
How To Use This Calculator
- Measure your waist circumference at the narrowest point (usually at the navel).
- Measure your hip circumference at the widest point (around the buttocks).
- Select your biological sex to apply the correct WHO guidelines.
- Review your ratio and risk category based on WHO standards.
- Save your assumptions with a shareable URL, then compare one conservative and one aggressive scenario before acting.
Frequently Asked Questions
Where should I measure waist circumference?
Measure horizontally at the narrowest point of your torso, typically around the navel level. Stand relaxed and breathe normally.
Where should I measure hip circumference?
Measure at the widest point around your buttocks, keeping the tape horizontal and snug but not tight.
What does waist-to-hip ratio indicate?
WHR is a body composition metric that can correlate with health risk. Lower ratios generally suggest a healthier fat distribution pattern.
Why are the risk ranges different for males and females?
Biological differences in typical fat distribution patterns mean different WHR thresholds for males and females according to WHO guidelines.
Is this the only body composition metric I should use?
No. WHR is most useful alongside other metrics like BMI, body fat percentage, and waist circumference alone.
Is this tool free and private to use?
Yes. AI Fit Hub tools are free, no-signup browser tools. Inputs stay in your browser unless you choose to share a URL.
Do these tools replace medical guidance?
No. These outputs are general fitness estimates — not medical advice.
Can I switch between metric and imperial units?
Yes. Every tool supports both systems and remembers your preference in localStorage.
Disclaimer
This waist-to-hip ratio assessment is for general informational purposes only and should not replace professional medical advice. Consult a healthcare provider for personalized health guidance.