To calculate BMI, enter your weight and height (kg and cm, or lb and ft/in). You’ll see your BMI, its WHO category and the weight range that corresponds to a BMI of 18.5–24.9 for your height.
How to use the BMI Calculator
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1
Choose units
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2
Enter weight and height
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3
Read your result
How it works
BMI = weight (kg) ÷ height (m)². WHO adult categories: under 18.5 underweight; 18.5–24.9 healthy; 25–29.9 overweight; 30 and above obesity. For South Asian adults, Indian health guidance often uses lower cut-offs (overweight from 23, obesity from 25), because health risks rise at lower BMI.
Features
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Metric and imperial
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Healthy range for your height
Examples
70 kg and 175 cm: 70 ÷ 1.75² = 22.9 (healthy weight).
Privacy and file handling
- Where it runs
- Runs in your browser
Runs entirely in your browser. Your files and text are not uploaded to our servers.
Limitations
- BMI doesn’t distinguish muscle from fat, and isn’t designed for children, pregnancy or athletes. It’s a screening measure, not a diagnosis — consult a doctor about your health.
Frequently asked questions
What is a healthy BMI for Indians?
Many Indian guidelines consider 18.5–22.9 healthy, 23–24.9 overweight and 25+ obese for adults.
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