BMI Calculator

BMI is a measurement of a person's leanness or corpulence based on their height and weight, and is intended to quantify tissue mass. It is widely used as a general indicator of whether a person has a healthy body weight for their height. Specifically, the value obtained from the calculation of BMI is used to categorize whether a person is underweight, normal weight, overweight, or obese depending on what range the value falls between.

• US Units
• Metric Units

BMI Range and Category Chart

BMI table for adults

Category	BMI Range kg/m2
UnderWeight	< 18.5
Normal	18.5 - 24.9
OverWeight	25 - 29.9
Obese	> 30

Understanding Your Body Mass Index

If your BMI is below 18.5 : Your BMI is considered underweight. Keep in mind that an underweight BMI calculation may pose certain health risks. Please consult with your healthcare provider for more information about BMI calculations.

If your BMI is between 18.5 - 24.9 : Your BMI is considered normal. This healthy weight helps reduce your risk of serious health conditions and means you’re close to your fitness goals.

If your BMI is between 25 - 29.9 : Your BMI is considered overweight. Being overweight may increase your risk of cardiovascular disease. Consult with your healthcare provider and consider making lifestyle changes through healthy eating and fitness to improve your health.

If your BMI is above 30 : Your BMI is considered obese. People with obesity are at increased risk for many diseases and health conditions, including cardiovascular disease, high blood pressure (Hypertension), Type 2 diabetes, breathing problems and more. Consult with your healthcare provider and consider making lifestyle changes through healthy eating and fitness to improve your overall health and quality of life.