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Your Body Mass Index (BMI) is a quick screening number that compares your weight to your height. It won’t tell you your body fat percentage or muscle mass, but it’s a fast, free way to see whether your weight falls in a range associated with lower health risks. Use the calculator below to get your BMI, your healthy weight range, and a personalized suggestion for what to do next.

BMI Calculator




Your BMI:
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Healthy Weight Range For Your Height
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Advice To Improve

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Person measuring both height and weight together for an accurate BMI calculation
BMI combines your height and weight into a single, standardized number, one reason it remains one of the fastest health screening tools available.

BMI Categories at a Glance

These are the standard adult BMI categories used by health organizations worldwide, broken down into finer levels so you can see exactly where your result falls. Your result above is measured against this same scale.

BMI Range Category Health Risk
Below 16.0 Underweight (Severe) High risk of nutritional deficiency and weakened immune function
16.0 – 18.4 Underweight (Mild) Increased risk of low energy reserves and reduced bone density
18.5 – 21.6 Normal (Lower Range) Lowest risk associated with body weight
21.7 – 24.9 Normal (Upper Range) Low risk, still within the healthy range
25.0 – 27.4 Overweight (Mild) Moderately increased risk of heart disease and type 2 diabetes
27.5 – 29.9 Overweight (Higher) Higher risk of elevated blood pressure and joint strain
30.0 – 34.9 Obese (Class I) High risk of heart disease, type 2 diabetes, and joint problems
35.0 and above Obese (Class II+) Very high risk of serious health complications

Disclaimer: BMI is a general screening tool, not a diagnosis. It doesn’t account for muscle mass, bone density, or body composition. Talk to a healthcare provider for a full picture of your health.