Adult BMI Calculator

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Units

US Customary Units

Metric Units

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Height

feet (ft)

inches (in)

Please enter a height between 3 feet (36 in) and 9 feet (108 in).

Please enter a height with inches between 0 and 11.

Height

centimeters (cm)

Please enter a height between 91.44 cm and 274.32 cm.

Weight

pounds (lbs)

Please enter a weight between 55 pounds and 1,000 pounds.

Weight

kilograms (kg)

Please enter a weight between 24.947 kg and 453.592 kg.

Calculated Results

BMI

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Detailed Results

Based on the information entered, your body mass index (BMI) is 0, indicating your weight is in the category for adults of your height.

BMI Category Ranges Table
BMI Category	BMI Range
Underweight	Below 18.5
Healthy Weight	18.5 to 24.9
Overweight	25.0 to 29.9
Obesity	30.0 or greater
Class 1 Obesity	30.0 to 34.9
Class 2 Obesity	35.0 to 39.9
Class 3 Obesity (Severe Obesity)	40.0 or greater

Detailed Results

Maintaining a BMI in the Healthy Weight range is one way to support overall health as you age. Discuss your BMI with your healthcare provider as BMI may relate to your overall health and well-being. For more information about lifestyle approaches, visit Healthy Weight and Growth. BMI is a screening measure and is not intended to diagnose disease or illness.

Discuss your BMI category with your healthcare provider as BMI may relate to your overall health and well-being. Your healthcare provider might determine possible reasons for underweightoverweightexcess weight and recommend support or treatment. BMI is a screening measure and is not intended to diagnose disease or illness.

Remember

Having excess weightsevere obesity can increase your risk for chronic conditions, including high blood pressure, type 2 diabetes, and high cholesterol. Assess your risk with this 1-minute prediabetes risk test. Read more about health risks associated with obesity.

For more information, visit About BMI or BMI Frequently Asked Questions.

Related Resources

Tips for Maintaining Healthy Weight
Tips for Healthy Eating
Staying Active at Any Size
Obesity: Risk Factors, Data, and More
Choosing a Safe & Successful Weight-loss Program
Risk Factors for Obesity
Weight Management
CDC’s National Diabetes Prevention Program
MOVE! Weight Management Program for Veterans
Prescription Medications to Treat Overweight and Obesity
Weight-loss (Metabolic & Bariatric) Surgery

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Disclaimer

BMI is one potential health indicator and should be considered with other factors when assessing an individual's health. Persons may consider seeking advice from their health care providers about their BMI. This calculator is not a substitute for professional medical advice.