Calculate waist-to-height ratio (WHtR) — see ratio, health category and keep waist less than half height rule.
Calculate waist-to-height ratio (WHtR) — see ratio, health category and keep waist less than half height rule.
Enter values above and click Calculate — results will appear here with the formula explained.
Waist-to-height ratio divides waist circumference by height, both in the same unit, and compares the result against the widely cited screening cut-point of 0.5 — keep waist less than half of height. Lower WHtR correlates with lower central adiposity risk in population studies, and because it normalizes for stature, it often discriminates better than raw waist or BMI alone in adults of different heights.
Cut-points are screening thresholds, not medical diagnoses. Children, highly muscular individuals and some ethnic groups have different distributions, and waist measurement technique — tape at the mid-point between the lowest rib and iliac crest, relaxed exhalation, horizontal — materially affects the number. Trending the same technique over weeks matters more than a single reading.
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Waist-to-height ratio divides waist circumference by height, both in the same unit, and compares the result against the widely cited screening cut-point of 0.5 — keep waist less than half of height. Lower WHtR correlates with lower central adiposity risk in population studies, and because it normalizes for stature, it often discriminates better than raw waist or BMI alone in adults of different heights. Formula: WHtR = waist / height; Healthy <0.5, 0.5-0.6 increased, >0.6 high
Waist to Height Ratio Calculator: Calculate waist-to-height ratio (WHtR) — see ratio, health category and keep waist less than half height rule. Formula: WHtR = waist / height. Example: With 85cm waist, 178cm height: WHtR 0.
Calculate waist-to-height ratio (WHtR) — see ratio, health category and keep waist less than half height rule. Formula: WHtR = waist / height; Healthy <0.5, 0.5-0.6 increased, >0.6 high
| Field | What to enter |
|---|---|
| Waist (cm) | e.g. 85 |
| Height (cm) | e.g. 178 |
All fields use the exact formulas shown below — results include step-by-step breakdowns you can verify by hand.
Waist-to-height ratio divides waist circumference by height, both in the same unit, and compares the result against the widely cited screening cut-point of 0.5 — keep waist less than half of height. Lower WHtR correlates with lower central adiposity risk in population studies, and because it normalizes for stature, it often discriminates better than raw waist or BMI alone in adults of different heights.
Cut-points are screening thresholds, not medical diagnoses. Children, highly muscular individuals and some ethnic groups have different distributions, and waist measurement technique — tape at the mid-point between the lowest rib and iliac crest, relaxed exhalation, horizontal — materially affects the number. Trending the same technique over weeks matters more than a single reading.
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With 85cm waist, 178cm height: WHtR 0.478, healthy (<0.5).
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