BMI Calculator
Calculate your Body Mass Index (BMI) using metric or imperial units. Fast, simple, and accurate.
Note: BMI is a screening measure and does not diagnose health. Always consult a professional for medical advice.
About this BMI calculator
BMI (Body Mass Index) estimates body weight relative to height. It’s commonly used as a quick screening tool for adults.
Standard categories: Underweight (below 18.5), Normal (18.5–24.9), Overweight (25–29.9), Obese (30+). BMI does not account for muscle mass, age, or body composition.
Is BMI accurate for everyone?
It’s a useful estimate for many adults, but it may be less accurate for athletes, older adults, and during pregnancy.
What is a “healthy” BMI?
Many references use 18.5–24.9 as the “normal” range for adults. Your ideal range can vary.