How do I calculate my BMI?

Enter your weight and height. The calculator divides your weight in kilograms by your height in meters squared (kg/m²). A BMI of 18.5-24.9 is considered normal weight.

What is a healthy BMI?

A BMI between 18.5 and 24.9 is considered normal weight. Below 18.5 is underweight, 25-29.9 is overweight, and 30 or above is classified as obese. BMI is a screening tool, not a diagnostic measure.

BMI Calculator

Calculate your Body Mass Index with metric or imperial units. Free BMI health tool.

How to use: Enter height and weight to calculate your BMI and see your category.

Weight (kg)

Height (cm)

How to Calculate BMI

Choose metric (kg/cm) or imperial (lbs/ft) units. Enter your weight and height. The calculator instantly computes your BMI and shows which category you fall into: underweight, normal weight, overweight, or obese.

Understanding BMI Categories

BMI is calculated as weight divided by height squared. While useful as a quick health screening tool, BMI doesn't account for muscle mass, bone density, or body composition. Athletes may have a high BMI due to muscle mass. Consult a healthcare provider for personalized health assessments.

Frequently Asked Questions

How do I calculate my BMI?: Enter your weight and height. The calculator divides your weight in kilograms by your height in meters squared (kg/m²). A BMI of 18.5-24.9 is considered normal weight.
What is a healthy BMI?: A BMI between 18.5 and 24.9 is considered normal weight. Below 18.5 is underweight, 25-29.9 is overweight, and 30 or above is classified as obese. BMI is a screening tool, not a diagnostic measure.