Waist–hip ratio
The waist-hip ratio or waist-to-hip ratio (WHR) is the dimensionless ratio of the circumference of the waist to that of the hips.
This is calculated as waist measurement divided by hip measurement (W ÷ H). For example, a person with a 30″ () waist and 38″ () hips has a waist-hip ratio of about 0.78.
Waist–hip ratio
Waist–hip ratio is also a reliable cue to one’s sex and it is hypothesised that the "individuals who represent a mismatch based on the cue provided by WHR (e.g., women with high WHRs or men with low WHRs) would likely be viewed as unattractive by the opposite sex."