BMI Calculator
Calculate BMI from height and weight and view common adult BMI ranges. For general information only; BMI is not an individual diagnosis.
What this tool solves
Calculate BMI from height and weight and show common range categories; results are for general informational use only.
Input: height and weight using the supported metric or imperial units.
Output: BMI value and a common adult BMI category.
How to use it
- Enter height and weight in the units shown.
- Calculate BMI and read the value together with the displayed range category.
- Use the result as a broad screening metric, not as a diagnosis or treatment recommendation.
Common use cases
- Quickly calculate adult BMI
- Convert height/weight measurements into a standard BMI value
- Track a general metric over time alongside other health information
Privacy, accuracy and limits
BMI does not directly measure body fat, muscle mass or health. Common adult categories are not appropriate for every person, including children, pregnancy and some athletic or clinical contexts.
WebToolMint keeps this workflow local in the browser where the feature allows it. Network-dependent tools are labelled separately. Keep originals and independently verify results that affect legal, financial, medical or business decisions.
Frequently asked questions
What is the BMI formula?
Metric BMI is weight in kilograms divided by height in meters squared.
Is BMI a diagnosis?
No. BMI is a population-level screening measure and does not by itself diagnose health or body composition.
Can children use adult BMI categories?
Children and adolescents are assessed differently, usually with age- and sex-specific growth references. Do not interpret a child using adult categories.
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