🇧🇪 Belgium 🌍 WHO 🌏 Asia-Pacific 🇯🇵 Japan
BMI Calculator — Belgium
Body Mass Index · WHO Standard · Belgium Health Statistics
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WHO normal BMI: 18.5–24.9. In Belgium, 22.1% of adults are obese and 53.1% are overweight or obese (WHO 2022 Global Health Observatory). Belgium uses the WHO BMI standard. The Sciensano (Belgian Institute for Health) publishes these statistics nationally. Belgium's Sciensano Health Survey shows significant differences between Wallonia (higher obesity) and Flanders (lower obesity), reflecting different dietary cultures.
Weight / Height · Metric (kg/cm) · Imperial (lbs/ft)
BMI Classification — Belgium & International
| Category / Normal | 🌍 WHO | 🌏 Asia-Pacific | 🇯🇵 Japan |
|---|---|---|---|
| Underweight | < 18.5 | < 18.5 | < 18.5 |
| Normal weight | 18.5 – 24.9 | 18.5 – 22.9 | 18.5 – 24.9 |
| Overweight | 25 – 29.9 | 23 – 27.4 | ≥ 25 (Obese) |
| Obese | ≥ 30 | ≥ 27.5 | — |
Frequently Asked Questions
What is the obesity rate in Belgium? ▾
22.1% of adults in Belgium are classified as obese and 53.1% are overweight or obese per WHO 2022 Global Health Observatory data. Belgium's Sciensano Health Survey shows significant differences between Wallonia (higher obesity) and Flanders (lower obesity), reflecting different dietary cultures. The Sciensano (Belgian Institute for Health) monitors these figures through national health and nutrition surveys.
What BMI standard does Belgium use? ▾
Belgium follows the WHO standard (normal 18.5–24.9, overweight 25–29.9, obese ≥30). The Sciensano (Belgian Institute for Health) applies these thresholds in national clinical guidelines and public health campaigns. Unlike parts of Asia which use lower cut-offs, the standard WHO thresholds reflect the original research on European and North American populations.
Is BMI an accurate measure for people in Belgium? ▾
BMI is a widely used population screening tool in Belgium but it has well-known limitations: it does not distinguish between muscle and fat, and cannot capture fat distribution — abdominal (visceral) fat carries higher cardiovascular risk than fat stored in limbs. The Sciensano (Belgian Institute for Health) recommends combining BMI with waist circumference (men: <94 cm, women: <80 cm per WHO) and other clinical indicators for a complete assessment.