BMI Calculator

Calculate Body Mass Index from height & weight

How to Use

Select Metric (kg/cm) or Imperial (lbs/inches).

Input your height in the selected unit.

Input your current weight.

See your BMI, category, and healthy weight range for your height.

What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight. It's calculated as weight (kg) divided by height squared (m²).

What are the BMI categories?

Underweight: below 18.5, Normal: 18.5-24.9, Overweight: 25-29.9, Obese Class I: 30-34.9, Obese Class II: 35-39.9, Obese Class III: 40+.

Is BMI accurate for everyone?

BMI is a general indicator but doesn't account for muscle mass, bone density, or body composition. Athletes may have high BMI but low body fat.

What is a healthy weight range?

A BMI of 18.5-24.9 is generally considered healthy. The calculator shows your healthy weight range based on your height.