BMI Calculator

Calculate your Body Mass Index instantly in metric or imperial units.

Advertisement
Advertisement

BMI Categories

BMI RangeCategoryHealth Risk
Below 18.5UnderweightModerate
18.5 – 24.9Normal weightLow
25.0 – 29.9OverweightIncreased
30.0 – 34.9Obese Class IHigh
35.0 – 39.9Obese Class IIVery High
40.0 and aboveObese Class IIIExtremely High

Frequently Asked Questions

What is BMI?
BMI (Body Mass Index) is a measure based on your height and weight. It is used as a screening tool for weight categories that may lead to health problems.
What is a healthy BMI?
A BMI between 18.5 and 24.9 is considered healthy for most adults. Below 18.5 is underweight, 25–29.9 is overweight, and 30 or above is obese.
Is BMI accurate?
BMI is a useful screening tool but not a perfect measure of health. It does not account for muscle mass, bone density, or fat distribution. Consult a healthcare professional for a full assessment.
How do I calculate BMI?
BMI = weight (kg) ÷ height (m)². In imperial: BMI = 703 × weight (lbs) ÷ height (inches)².
Advertisement

More Free Calculators