BMI (Asian Cut-offs): 5 Mistakes to Avoid
Singapore's Health Promotion Board uses lower BMI cut-offs for Asians because health risks rise at lower BMIs. This calculator applies them. The maths is not complicated, but a handful of errors come up again and again in this and related health & fitness calculations. Here is what to watch for.
Research has shown that Asians tend to develop conditions such as type 2 diabetes and heart disease at lower body weights than Europeans. That is why the Health Promotion Board recommends lower BMI cut-offs for Singaporeans, with 23 marking the start of moderate risk.
Any health calculator gives a general estimate. If a result worries you, or you are pregnant, managing a chronic condition or planning a big change in diet or exercise, speak to a doctor, polyclinic or dietitian.
1. Measuring inconsistently
Tape measurements change with posture and breathing; measure the same way each time.
2. Relying on a single measurement
Weight and heart rate fluctuate daily; trends tell you more.
3. Ignoring hydration in hot weather
Outdoor activity in Singapore's climate increases fluid loss.
4. Mixing units
Entering pounds or inches into a metric formula gives nonsense results.
5. Using international BMI cut-offs for Asians
HPB recommends lower cut-offs because risks rise at lower BMIs in Asian populations.
The correct method
BMI = weight (kg) ÷ height (m)²; 18.5–22.9 is the healthy range for Asians.
For example, with these inputs:
- Weight (kg): 68
- Height (cm): 170
the calculator returns:
- BMI: 23.53
- Health risk (HPB Asian cut-offs): Moderate risk
Related calculations
- Calorie Deficit Calculator: Sets a daily calorie target for steady weight loss.
- Pregnancy Due Date Calculator: Estimates your due date using Naegele's rule.
- Ovulation Calculator: Estimates ovulation and the fertile window.
- Heart Rate Zone Calculator: Shows heart-rate training zones from your age.
The BMI Calculator (Asian Cut-offs) applies the formula consistently, so it is a quick way to double-check your own working.
Run your own numbers: BMI Calculator (Asian Cut-offs)