BMI Calculator
Body Mass Index from height and weight.
Your BMI
22.9
Normal
A healthy weight for your height is about 56.7–76.3 kg (BMI 18.5–24.9).
Runs entirely in your browser — nothing you enter is uploaded or sent to a server.
BMI is a rough screening number, not a diagnosis — it can't tell muscle from fat and doesn't suit athletes, pregnancy, children or older adults. For Indians the commonly used cut-offs are lower (overweight from about 23 rather than 25), so read your category with that in mind. It isn't medical advice — talk to a doctor about what's right for you. Read our full disclaimer.
About this tool
Body Mass Index (BMI) is a simple screening number based on your height and weight (BMI = weight in kg ÷ height in metres squared). It sorts adults into underweight, normal, overweight, and obese ranges. This tool works in metric or imperial units and shows the healthy-weight range for your height. It's a general indicator, not a diagnosis.
Example
70 kg at 175 cm gives a BMI of about 22.9 — in the normal range (18.5–24.9).
How to use
- 1Choose metric or imperial units.
- 2Enter your weight and height.
- 3Read your BMI, its category, and a healthy-weight range.
Features
- Metric or imperial input.
- BMI value, category, and healthy-weight range.
- Based on the standard WHO adult categories.
Frequently asked questions
Is BMI accurate for everyone?
BMI is a rough screening tool. It doesn't distinguish muscle from fat, so it can misclassify athletes and others. Treat it as a general indicator, not a diagnosis.
Is this medical advice?
No. It's for general information only. For health decisions, consult a qualified professional. See our Disclaimer.