Active Runner BMI Calculator

Please feel free to use our BMI calculator however only use this as a guide and please read the disclaimer at the bottom of the page before using any of the results given.



Body Mass Index (BMI) is used widely to predict the likelihood of developing many health issues from underweight to diabetes risk. Many studies suggest that people do not have a good understanding of BMI and what it means. You are given a number and it shows you what BMI means in terms of the body shape for someone of your height, weight and gender. Although BMI can be used for all sexes, it does have some limits:

  • It may overestimate body fat in athletes and others who have a muscular build.
  • It may underestimate body fat in older persons and others who have lost muscle.

The result is provided for your entertainment. Our BMI calculator is not intended for use by individuals under the age of 18. We do not provide medical advice.

In particular:
We do not advocate for weight change of any type
If you have questions or concerns about your weight or health, see your doctor.
BMI is not universally accepted as a good indicator of overall health.

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