Your BMI result
--
Enter your data to calculate your BMI.
Fill in the form and click "Calculate BMI" to see your personalised result.
Underweight0.0 – 18.5
Normal18.5 – 25.0
Overweight25.0 – 30.0
Obesity30.0 – 60.0
BMI Calculator (Body Mass Index)
Calculate your BMI and see your WHO category.
Body Mass Index (BMI) Calculator
Enter your measurements to get your BMI in a fast and simple way.
Sponsored
This area may display relevant ads once the required consent is granted.
Suggested article
BMI explained: make sense of your number
Understand what the Body Mass Index really shows, what each range means and how to combine it with other metrics for better decisions.
Read the full article →
Quick guide to BMI
Body Mass Index (BMI) relates weight and height to estimate body composition ranges. It is a population guideline and does not replace individual clinical assessment.
How it is calculated
BMI = weight (kg) / height (m)². Imperial inputs are converted to metric before performing the calculation.
Form fields
- Weight: enter your current body weight in kilograms (or pounds when using the imperial system).
- Height: enter your height in centimetres (or inches when using the imperial system).
Interpreting results
| BMI range | Category |
|---|---|
| 0.0 – 18.5 | Underweight |
| 18.5 – 25.0 | Healthy |
| 25.0 – 30.0 | Overweight |
| 30.0 – 60.0 | Obesity |
Limitations of BMI
BMI does not distinguish between muscle and fat nor account for fat distribution. Very muscular individuals, older adults or people with specific medical conditions may receive values that do not fully reflect their actual health status.
Practical tips
- Combine BMI with waist circumference, body composition and professional review.
- Sustained habit changes (activity, nutrition, rest) deliver lasting improvements.
- Avoid drastic decisions based only on the BMI number. If in doubt, consult your doctor or a registered dietitian.
Sources
More calculators