Calculate your Body Mass Index and see what category you fall into.
A BMI (Body Mass Index) calculator is a free health tool that measures body fat based on your height and weight. BMI is widely used by doctors and health professionals as a screening tool to identify potential weight problems in adults. This calculator supports both metric (kg/cm) and imperial (lbs/inches) units.
Doctors use BMI as an initial screening tool to assess whether a patient may have weight-related health risks.
Track BMI changes over time as you progress through a diet or exercise programme.
Many insurance applications and medical assessments require BMI to be calculated and recorded.
Calculate your target weight range for a healthy BMI to set realistic fitness goals.
For adults, a BMI between 18.5 and 24.9 is considered healthy. Below 18.5 is underweight, 25–29.9 is overweight, and 30+ is obese.
BMI is a useful screening tool but has limitations. It may overestimate body fat in muscular people and underestimate it in older adults who have lost muscle mass.
Both metric (kg and cm) and imperial (lbs and inches/feet) units are supported.
For general health monitoring, checking BMI every 3–6 months is sufficient unless you are actively managing your weight.