Waist-to-Height Ratio Calculator

Your details

Switch to target mode to find the waist size that hits a ratio you choose.
Measure without shoes, standing upright against a flat wall.
cm
Measure at the midpoint between your lowest rib and the top of your hip bone, just above the navel.
cm
Only changes the wording of the band labels; the 0.5 boundary still applies as a guide.
Waist-to-height ratioHealthy (OK)
0.457
Healthy waist (max, ratio 0.5)87.5cm
Lower waist guide (ratio 0.4)70cm
Change to reach a 0.5 waist7.5cm
0.457
Take care<0.4Healthy0.4-0.5Consider action0.5-0.6Take action0.6+

Your waist-to-height ratio is 0.46 (Healthy (OK)).

  • A ratio under 0.5 is the simplest target: keep your waist to less than half your height. You are at 0.46.
  • For your height, a waist up to 87.5 cm keeps you at or under 0.5.
  • You have about 7.5 cm of waist headroom before reaching 0.5.
  • Because waist and height share a unit, the ratio is the same in centimetres or inches.

Next stepPair this with BMI and a body-fat estimate for a fuller picture, and track the trend over time.

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