BMI Calculator
Calculate your Body Mass Index from height and weight.
About the BMI Calculator
Calculate your Body Mass Index from height and weight. Supports metric and imperial units.
Why client-side?
Every byte you paste, type, or upload here is processed entirely inside your browser. Nothing is sent to a server, logged, or stored. That means it's safe to use this tool on production secrets, customer data, internal logs, and any input you would not paste into a hosted SaaS formatter.
Frequently Asked Questions
- How do I calculate my BMI?
- Enter your height and weight. The calculator applies the BMI formula (weight in kg divided by height in meters squared) and shows your BMI with its category.
- What is a healthy BMI range?
- A BMI between 18.5 and 24.9 is considered normal weight. Under 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese according to WHO guidelines.
- Does BMI work for everyone?
- BMI is a general screening tool. It may not be accurate for athletes, elderly people, or those with high muscle mass. Consult a healthcare provider for personalized assessment.