BMI Calculator
Calculate Body Mass Index in metric or imperial units, with category ranges and a healthy weight range.
Works offlineHealth
Height and weight
cm
kg
Where that sits
The scale below runs from BMI 15 to 40.
Under
Healthy
Over
Obese
1518.5253040+
BMI is a rough screening number, not a diagnosis
It compares weight to height and nothing else — it cannot tell muscle from fat, and it does not account for body composition, frame size, age, ethnicity or pregnancy. A very muscular person often reads as “overweight” on this scale while being nothing of the sort. Treat it as one crude signal, and talk to a clinician about what it means for you.
Your BMI
23.5
Healthy weight
Healthy range for your height
56.7 kg – 76.3 kg
BMI 18.5 to 24.9
The categories
- UnderweightBelow 18.5
- Healthy weight18.5 – 24.9
- Overweight25.0 – 29.9
- Obese (class I)30.0 – 34.9
- Obese (class II)35.0 – 39.9
- Obese (class III)40.0 and above
About the bmi calculator
Enter height and weight in metric or imperial units to get your BMI along with the category it falls into, shown on a scale so you can see where you sit rather than just reading a number. It also gives the weight range considered healthy for your height. BMI is a population-level screening measure and does not account for muscle mass or body composition, so treat it as one rough signal rather than a diagnosis.
This tool runs entirely in your browser. Nothing you type is uploaded, and it keeps working with no connection at all — including as an installed app.