BMI Calculator
Calculate your Body Mass Index (BMI) to check if you're at a healthy weight. Supports metric and imperial units.
Enter your height and weight to calculate BMI
Free BMI Calculator – Check Your Body Mass Index
Our free BMI calculator helps you quickly determine your Body Mass Index and understand if you're at a healthy weight. BMI is a widely used screening tool that uses your height and weight to estimate body fat and assess potential health risks.
Simply enter your height and weight in either metric (kg/cm) or imperial (lb/ft) units, and instantly see your BMI along with your weight category. The calculator also shows your healthy weight range.
What is BMI?
Body Mass Index (BMI) is a number calculated from your weight and height. It provides an indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems. The formula is: BMI = weight (kg) / height (m)²
BMI Categories
BMI below 18.5
BMI 18.5 – 24.9
BMI 25 – 29.9
BMI 30 or higher
Frequently Asked Questions
What is a healthy BMI?
A BMI between 18.5 and 24.9 is considered normal weight. This range is associated with the lowest health risks for most adults.
Is BMI accurate for everyone?
BMI is a useful screening tool but doesn't directly measure body fat. It may overestimate body fat in athletes and underestimate it in older adults. Consult a healthcare provider for a complete assessment.
How do I calculate my BMI?
BMI = weight (kg) divided by height (m) squared. Or use our calculator above – just enter your measurements and get instant results.
What should I do if my BMI is too high or low?
If your BMI falls outside the normal range, consider consulting a healthcare professional for personalized advice on nutrition and exercise.