Waist–hip ratio or Waist To Hip Ratio Calculator (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″ (76 cm) waist and 38″ (97 cm)hips has a waist–hip ratio of about 0.79.
The WHR has been used as an indicator or measure of health, and the risk of developing serious health conditions. WHR correlates with fertility (with different optimal values for males and females).
WtHR = Waist / Hip
BMI is one method of assessing your health risk, but it does not tell the whole story. One of the important measurements that can help gauge your health risk for a variety of conditions is waist to hip ratio. Use our calculator to assess your health risk category by simply entering your waist and hip measurements in inches or centimeters.
The World Health Organization defines abdominal obesity as a waist to hip (WHR) ratio of more than 0.9 for men and more than 0.85 for women. The National Institute of Diabetes, Digestive and Kidney Diseases say that risk for these conditions increases in men with WHRs of more than 1.0, and in women with WHRs of more than 0.8. Because abdominal fat is more dangerous than fat stored on other parts of the body, the WHR can be a good measure of future risk.
Fertility studies indicate that a WHR of about 0.9 for men and 0.7 for women is correlated with higher fertility and general overall health. Women with WHRs of more than 0.8 have significantly reduced fertility when compared to those with WHRs of less than 0.8. Men with high WHRs get more prostate and testicular cancer, and are also less fertile.
For Good Health
- Women should attempt to maintain a WHR of less than 0.8
- Men should attempt to maintain a WHR of less than 0.9
- These measurements may be more important than BMI, but should at least be considered along with BMI
Maintaining these values for WHR is associated with decreased risk for a variety of weight-related conditions, and increased general health. It is a quick and easy way to assess your health risk, and provides instant feedback. Use our calculator now to check your waist to hip ratio.
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