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Adult waist-to-height reference

Calculate waist-to-height ratio using NICE adult classifications when BMI is below 35 kg/m².

Limited scopeHigh-impactNICE NG246 · Adults with BMI below 35 kg/m²
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Measure the waist midway between the bottom of the ribs and top of the hips after breathing out naturally. Use the same unit for waist and height.

Enter values, then process to see the result.

How to use it

  1. Confirm the adult, non-pregnancy and BMI-below-35 scope.
  2. Measure the waist and height in centimetres using the displayed method.
  3. Review the unrounded ratio and classification without treating it as a diagnosis.

Important limitation

This practical central-adiposity reference does not diagnose diabetes, hypertension, cardiovascular disease or any other condition.

The interactive form is fully localized in English.

Reviewed 2026-09-23; next review 2026-12-23.

The NICE measurement method, BMI-below-35 scope and 0.4, 0.5 and 0.6 boundaries have been checked. The result is not a diagnosis.

Sources

NICE NG246 — Identifying and assessing overweight, obesity and central adiposityNational Institute for Health and Care Excellence · opens in a new tabUses the measurement method and adult BMI-below-35 classifications in recommendations 1.9.5, 1.9.8 and 1.9.14–1.9.15.Source checked 2026-09-23
Traceable review record

Review history

Site changelog

This is the recorded review history available in the repository, not an inferred release history. Dates are added only when evidence is recorded.

  1. Current review snapshot recorded

    The NICE measurement method, BMI-below-35 scope and 0.4, 0.5 and 0.6 boundaries have been checked. The result is not a diagnosis.

    Method version: review-2026-09-23