BMI Calculator

Check your Body Mass Index (BMI) to find out if you're at a healthy weight. Simply enter your height and weight below.

Enter your weight and height to see your BMI result here.

Formula Explained

Metric: BMI = weight(kg) / [height(m)]²
Imperial: BMI = 703 × weight(lbs) / [height(in)]²

Frequently Asked Questions

What is a normal BMI?

A normal BMI ranges from 18.5 to 24.9. This range is considered healthy for most adults.

How is BMI calculated?

BMI is calculated by dividing your weight in kilograms by your height in meters squared (kg/m²). For pounds and inches, it is (lbs/in²) × 703.

Is BMI accurate?

BMI is a useful general screening tool but it doesn't measure body fat directly. It may not be accurate for athletes, pregnant women, or the elderly.

What should I do if my BMI is high?

If your BMI falls into the overweight or obese category, it's recommended to consult with a healthcare provider for personalized advice.

Can children use this BMI calculator?

This standard BMI calculator is meant for adults (age 20+). Children and teens require a different calculation that accounts for age and sex percentiles.