Nutrition tool
BMI Calculator
Calculate your body mass index and understand what it can - and cannot - tell you about your health.
Your estimate
BMI is a screening measure only. It is not a diagnosis.
Understanding BMI
What the categories mean
| BMI | Category | Note |
|---|---|---|
| Below 18.5 | Underweight | May warrant professional attention if unintentional |
| 18.5 - 24.9 | Healthy weight range | A common target range, not a guarantee of health |
| 25.0 - 29.9 | Overweight | Consider lifestyle factors alongside other measures |
| 30.0 and above | Obesity range | Discuss health risks and options with a professional |
Categories follow widely used WHO-based ranges. They are a starting point for conversation, not a verdict.
Limitations
BMI does not distinguish fat from muscle and can misclassify athletic people or older adults. Use it alongside other indicators (waist measurement, blood pressure, energy levels) and, ideally, a professional assessment.
Frequently asked questions
Is BMI accurate for athletes?
Often not - high muscle mass can push BMI up despite low body fat. Treat the number as a rough guide.
What should I do if my BMI is high?
Focus on sustainable habits: balanced meals, regular movement and better sleep. A healthcare professional can help with a plan that fits you.