What is a healthy BMI range?

For most adults, a BMI between 18.5 and 24.9 is classified as a healthy weight range, according to standard public-health guidelines.

Is BMI accurate for everyone?

BMI doesn't distinguish between muscle and fat, so it can be less accurate for athletes, older adults, and some other groups. It's best used as a general screening tool rather than a diagnosis.

Calculators Health

BMI Calculator

Calculate your Body Mass Index using metric or imperial units.

Units

Height

Centimeters

Weight

Kilograms

Body Mass Index

23.5

About this tool

Body Mass Index (BMI) is a simple screening measure that relates weight to height. Enter your measurements in either metric (centimeters and kilograms) or imperial (feet, inches, and pounds) units to get your BMI and see which standard weight category it falls into.

How to use this tool

1
Choose your unit system
Switch between metric (cm/kg) and imperial (ft-in/lb) with the units dropdown.
2
Enter height and weight
Fill in both fields — the result updates automatically once both are set.
3
Check your category
Your BMI and its standard weight category (underweight, healthy, overweight, obesity) both appear in the readout.

Frequently asked questions

What is a healthy BMI range?: For most adults, a BMI between 18.5 and 24.9 is classified as a healthy weight range, according to standard public-health guidelines.
Is BMI accurate for everyone?: BMI doesn't distinguish between muscle and fat, so it can be less accurate for athletes, older adults, and some other groups. It's best used as a general screening tool rather than a diagnosis.