Calculator
BMI Calculator
Calculate your Body Mass Index (BMI) from your height and weight, in metric or imperial units.
How to use
- 1
Choose metric or imperial units.
- 2
Enter your weight and height.
- 3
Click Calculate BMI.
- 4
See your BMI value and weight category.
Features
- Supports both metric and imperial units
- Instant result with weight category
- Visual scale showing where your BMI falls
- No data leaves your browser
Frequently asked questions
What is a healthy BMI range?
A BMI between 18.5 and 24.9 is generally considered a normal, healthy weight range for most adults.
Is BMI accurate for everyone?
BMI doesn't account for muscle mass, bone density, or body composition, so it can be less accurate for athletes, older adults, and some other groups.
How is BMI calculated?
BMI is weight in kilograms divided by height in meters squared (or weight in pounds times 703, divided by height in inches squared).
Should I use this for medical decisions?
This tool is for general informational purposes only — talk to a healthcare provider for personalized medical advice.