BMI Calculator
Check your Body Mass Index and healthy weight range in seconds.
Launch the BMI CalculatorHow to Use the BMI Calculator
Four simple steps — no registration, no learning curve.
Choose Metric or Imperial units
Enter your height and weight
See your BMI and category instantly
Check the healthy weight range
Why Choose Our BMI Calculator ?
- Instant BMI calculation in metric or imperial units
- Color-coded category indicator
- Healthy weight range for your height
- 100% client-side — no data uploaded
- Free, instant, no registration
What Is BMI Calculator ?
Body Mass Index (BMI) estimates body fat based on your height and weight. It is calculated by dividing weight in kilograms by the square of height in meters, and the result classifies adults into weight categories.
Our BMI calculator supports both metric (cm/kg) and imperial (ft/lb) units. Enter your height and weight and instantly see your BMI value, its category (underweight, normal, overweight, or obese), and the healthy weight range for your height.
The calculation runs locally in your browser — nothing is uploaded or stored. It is a useful screening tool, but it does not measure body fat directly and may be inaccurate for athletes, children, pregnant women, or older adults.
Use the result as a general guideline and consult a healthcare professional for a full assessment.
Common Use Cases
People use this tool every day for these tasks.
Check your weight category quickly
Track weight changes over time
Understand your healthy weight range
Prepare for a medical consultation
Frequently Asked Questions
Everything you need to know about this tool.
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Fast, private, and unlimited. Open the tool and get your result in seconds.
Launch the BMI Calculator