Calculate Your Body Mass Index in Seconds

Understand your weight in relation to your height and get personalized health insights

BMI Calculator

Your BMI Result

25.2

Overweight

Your BMI indicates that you may be overweight according to WHO guidelines. This may increase your risk of developing certain health conditions.

Accurate Calculations

Our BMI calculator uses the most up-to-date formula recommended by health professionals worldwide for precise results.

Personalized Insights

Receive tailored feedback based on your BMI results, including what they mean for your overall health and wellbeing.

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Understanding Your BMI

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared.

A high BMI can be an indicator of high body fat and can be used to screen for weight categories that may lead to health problems. However, BMI is not a diagnostic tool and should be used alongside other measurements.

BMI Range	Weight Category	Health Risk
Below 18.5	Underweight	Increased risk for certain health conditions
18.5 - 24.9	Normal weight	Lowest risk for health problems
25.0 - 29.9	Overweight	Increased risk for heart disease, high blood pressure, type 2 diabetes
30.0 - 34.9	Obesity (Class 1)	High risk for health problems
35.0 - 39.9	Obesity (Class 2)	Very high risk for health problems
40.0 and above	Severe Obesity (Class 3)	Extremely high risk for serious health problems

It's important to note that BMI is just one measure of health. Factors like muscle mass, bone density, ethnicity, and age can influence how accurately BMI reflects body fat levels. Always consult with a healthcare professional for a comprehensive health assessment.

Frequently Asked Questions

What is a good BMI?

A BMI between 18.5 and 24.9 is generally considered to be in the healthy weight range for adults. However, what's "good" can vary based on factors like age, ethnicity, and body composition.

Does BMI accurately measure body fat?

BMI is a useful screening tool but doesn't directly measure body fat. It may overestimate body fat in athletes and underestimate it in older persons or those who have lost muscle mass.

How often should I check my BMI?

For most adults, checking BMI once or twice a year is sufficient unless you're actively working on weight management. Significant changes in weight should prompt a BMI recalculation.

Is BMI different for men and women?

The BMI calculation is the same for men and women. However, women typically have more body fat than men with the same BMI, and health risks may begin at different thresholds.

Is BMI applicable to children?

BMI for children and teens (aged 2-19) uses age and sex-specific percentiles rather than the categories used for adults. This is because body fat changes with age and varies between boys and girls.