BMI Calculator
Quickly calculate your BMI (Body Mass Index) by entering your height and weight.
BMI Calculator
Results
- BMI
- 22.86
- Category
- Normal weight
How to calculate your BMI
Calculate your Body Mass Index (BMI) from height and weight, and see which WHO weight category it falls into.
The formula
- Formula
BMI = weight (kg) / height (m)²Height is entered in centimeters here and converted to meters automatically.
Weight categories
- Below 18.5 — Underweight
- 18.5 to 24.9 — Normal weight
- 25 to 29.9 — Overweight
- 30 and above — Obesity
Limitations of BMI
BMI doesn't distinguish muscle from fat, so it can overestimate body fat in very muscular people and underestimate it in older adults with reduced muscle mass. It's a quick population-level screening measure, not a diagnosis.
Privacy
Runs locally in your browser. No data is sent to the server.
FAQ
Is BMI accurate for athletes?
Not reliably. Athletes with high muscle mass often score as "overweight" or "obese" by BMI despite low body fat, since the formula can't tell muscle from fat.
What units does this calculator use?
Height in centimeters and weight in kilograms.
Is this medical advice?
No. BMI is a general screening tool. For an individual health assessment, talk to a healthcare professional.