Calculate Your BMI

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Your BMI

Your body mass index is {bmiString} ({weightStatus}). {weightMessage}

Your body fat percentage is approximately {percentFatString}% ({percentFatStatus}).

BMI Chart · Learn more about BMI

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What is BMI

BMI is short for body mass index. BMI is a way of comparing your weight to the healthy weight for your height. BMI is a standard metric defined by the World Health Organization.

A healthy BMI is from 18.5 to 25. Anything lower suggests that you are underweight and anything higher suggests that you are overweight. BMI is correlated with how much body fat you have. If you are severely underweight or overweight, you should consult a doctor for a more accurate body fat test.

BMI is used because it's very easy to calculate, you simply enter your height and weight into your BMI calculator. However, BMI isn't as accurate as the body fat tests done by your doctor. Your BMI may not accurately reflect your level of health. For example, women tend to have a higher BMI than men because women have more body fat on average. This means that women can have a higher-than-average BMI and still be healthy. Athletes also have higher than average BMI, but that's because of muscles, not fat. Nevertheless, BMI is a good starting point to figure out how healthy you are.

Our BMI calculator uses the standard BMI formula: mass divided by height squared. There are specialized calculators for men and women. There are also other BMI calculators that use your body surface area or waist circumference, but most people don't know these metrics.

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