BMI Calculator
Calculate your Body Mass Index instantly
How BMI is Calculated
Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m², where kg is a person's weight in kilograms and m² is their height in meters squared.
Frequently Asked Questions
What is a healthy BMI?
A healthy BMI typically falls between 18.5 and 24.9. Values below 18.5 are considered underweight, while values of 25 to 29.9 are considered overweight, and 30 or above is considered obese. To better understand your daily energy needs, you can check out our Calorie Needs Calculator.
Is BMI accurate?
While BMI is a useful general screening tool, it does not directly measure body fat. It may not be accurate for athletes with high muscle mass, pregnant women, or older adults. If you're curious about your optimal weight range, try our Ideal Weight Calculator.