Other Tools

BMI Calculator

Calculate body mass index from height and weight using metric or US units, with standard adult BMI categories.

Height (cm)Weight (kg)

Your BMI

22.9

How to use the BMI Calculator

Choose units

Select metric or US units.

Enter height and weight

Type your current height and weight.

Read your BMI

See the BMI number and adult category instantly.

What is the BMI Calculator?

The BMI calculator estimates body mass index from your height and weight. It is commonly searched by people checking a quick adult weight category, but it should be used as general context rather than a diagnosis.

Metric and US units
Instant BMI calculation
Adult BMI category
Healthy BMI reference range
No account or upload needed
Clear screening-note context

Frequently Asked Questions

What does BMI mean?

BMI means body mass index. It compares weight to height and gives a general adult weight category.

Is BMI accurate for everyone?

No. BMI is a simple screening measure and may not represent athletes, pregnant people, older adults, or anyone whose body composition differs from the average.

Which BMI categories are used?

This calculator uses common adult categories: under 18.5, 18.5 to 24.9, 25 to 29.9, and 30 or higher.

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