The 2004 WHO Expert Consultation (published in The Lancet) reviewed evidence that, for many Asian populations, the risk of type 2 diabetes and cardiovascular disease starts climbing at lower BMIs than for European-descended cohorts. The consultation declined to redefine the global cut-offs but recommended that public-health bodies serving Asian populations use lower "public-health action points": overweight ≥ 23 and obese ≥ 27.5. Several Asian countries — notably China, Japan, India and Singapore — have adopted these adjusted cut-offs in their clinical guidelines.
How this calculator handles it
The "Use Asian BMI thresholds" checkbox on the standard calculator is checked by default on this page. The WHO bands are replaced with: underweight below 18.5, normal 18.5–22.9, overweight 23.0–27.4, obese 27.5 and above. The gauge colour updates accordingly, and the category label says "Overweight (Asian)" / "Obese (Asian)".
What BMI Prime looks like for Asian thresholds
BMI Prime (your BMI / 25) is the same number — but the threshold for "above the upper edge of healthy" drops from 1.00 to 0.92 in the Asian system. A BMI of 23 in the Asian system is the same "BMI Prime = 0.92" point that maps to overweight.
Limitations
The Asian cut-offs are population-level recommendations. Individual cardiometabolic risk depends on family history, waist circumference, blood pressure, glucose and lipids — not on BMI alone. A South Asian or East Asian person with a BMI of 22 may already have elevated visceral fat and a higher risk profile than the same number would suggest in a European-descended person. For anything decision-shaped, take the number to a clinician.
Next steps
- Standard WHO BMI calculator
- Adult BMI calculator
- BMI categories — WHO + Asian side-by-side
- Is BMI accurate?