Waist-to-height and waist-to-hip ratios
Enter your waist, your height and, if you wish, your hips. The tool calculates two simple ratios. They are descriptive measurements, not a diagnosis.
General information, not medical advice. This result does not replace a doctor. If in doubt or if you have symptoms, see a health professional.
Result
0.47Waist-to-height ratio
- Waist-to-hip ratio
- 0.8
- These ratios describe a body shape; on their own they say nothing about your health. For a question about your health, talk to a professional.
Inputs
- Waist
- 80
- Height
- 170
- Hips (optional)
- 100
How it is calculated
Waist-to-height ratio = waist ÷ height, in the same unit.
Result
Waist-to-height ratio
- Waist-to-hip ratio
- 0.8
How it is calculated
- Waist-to-height ratio = waist ÷ height, in the same unit.
- Waist-to-hip ratio = waist ÷ hips.
- Guidance such as NICE (2022) uses the first ratio as a point of discussion with a professional, alongside other information.
Example
Waist 80 cm, height 170 cm, hips 100 cm: waist-to-height 0.47; waist-to-hip 0.80.
Good to know
- Accuracy depends a lot on where and how you measure.
- Not suited to pregnancy or children without professional advice.
- No threshold is applied here: interpretation belongs to a health professional.
Sources
- NICE, Obesity: identification, assessment and management (CG189), 2022 update
- WHO, Waist circumference and waist-hip ratio: report of a WHO expert consultation, 2008
Frequently asked questions
What is this tool used for?
Enter your waist, your height and, if you wish, your hips. The tool calculates two simple ratios. They are descriptive measurements, not a diagnosis.
How is the result calculated?
Waist-to-height ratio = waist ÷ height, in the same unit.
What should I check before using the result?
Accuracy depends a lot on where and how you measure.