Health & Fitness
Waist to Hip Ratio Calculator - Health Risk
Calculate waist-to-hip ratio and assess health risk category.
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
Frequently asked questions
What is waist-to-hip ratio?
WHR compares waist size to hip size as an indicator of health risk.
Why does sex matter?
Risk thresholds differ for men and women.
Is this a medical diagnosis?
No. It is a screening estimate and not a medical diagnosis.
Related tools
About this tool
Inputs
- Waist
- Hip
- Sex
Results
- Waist-to-hip ratio
- Risk
Quick mental math is convenient, but it introduces errors. The Waist to Hip Ratio Calculator eliminates that risk by computing the exact result from your inputs. Fill in waist, hip and sex and the tool handles the rest, showing you waist-to-hip ratio and risk within moments. Basal metabolic rate estimates use equations like Harris-Benedict or Mifflin-St Jeor, which factor in age, sex, height, and weight. Reference ranges published by organizations like WHO and NIH apply to general adult populations and may not suit everyone.
Athletes and pregnant individuals may fall outside standard reference ranges without any health concern. Whether you need to calculate waist-to-hip ratio and assess health risk category for a quick check or a thorough analysis, this tool adapts to both. Body composition, metabolism, and vital signs interact in complex ways that a single number cannot capture. Try adjusting one input at a time to see how it affects the outcome — this is the fastest way to build intuition about the relationship between the variables. Measure consistently — same time of day, same conditions — for the most reliable comparisons.