Free tool
BMI Calculator UK
Free BMI calculator for adults using NHS weight bands — enter your height and weight in cm and kg.
Your BMI
22.9
Healthy weight
- Below 18.5 — underweight
- 18.5 to 24.9 — healthy weight
- 25 to 29.9 — overweight
- 30 or over — obese
For adults only. BMI doesn't measure muscle or body shape, and people of Asian, Chinese, Middle Eastern, Black African or African-Caribbean background may have higher risk at a lower BMI (NHS). Not medical advice.