BMI Clinical Calculator
BMI calculator with result interpretation based on clinical standards for adults and children.
Calculate body mass index, choose the right assessment standard, and get the result in a clear form.
Why this calculator
Clear results based on clinical standards
See BMI, category, healthy weight range, and the standard used to interpret the result right away.
The calculator supports adult and pediatric modes and helps you choose the right evaluation standard.
For frequent use, saved settings, profiles, and result tracking, switch to the mobile app.
Resources
BMI articles and guides
Body mass index (BMI)
Everything you need to know about body mass index.
Adult BMI assessment standardsWhen to use WHO or Asia-Pacific and how the interpretation changes.
Child BMI assessment standardsWhen WHO, CDC, and IOTF are used for children and why adult cutoffs do not fit.
BMI guidesBMI for athletes: when the standard scale needs contextWhy body mass index can be less precise for people with substantial muscle mass, and how to read the result without medical promises.
BMI guidesBMI and body fat percentage: how the metrics differBMI quickly estimates weight relative to height, while body fat percentage describes body composition. Here is when each metric is more useful.