BMI Calculator
About BMI Calculator
The BMI calculator estimates body mass index from weight and height. It is a screening estimate, not a medical diagnosis.
How to Use
The BMI calculator estimates body mass index from weight and height. It is a screening estimate, not a medical diagnosis.
- Open the calculator : Use BMI Calculator from the Health category.
- Check the inputs : Review the required values and any optional settings.
- Read the formula : Use the formula and notes below to understand how the result is produced.
Common Questions
What does the BMI Calculator estimate?
It estimates body mass index from height and weight.
How accurate is the result?
BMI is only a screening estimate and does not measure body composition or replace medical advice.
What is considered a healthy BMI range?
According to standard medical guidelines, a healthy Body Mass Index (BMI) falls between 18.5 and 24.9. A BMI below 18.5 is considered underweight, 25.0 to 29.9 is overweight, and 30.0 or higher falls into the obesity category.
What are the limitations of the BMI calculation?
The standard BMI formula only relies on height and weight, meaning it cannot distinguish between muscle mass and body fat. Consequently, highly muscular athletes may mathematically categorize as overweight or obese despite having incredibly low body fat percentages.
Inputs
- Weight
- Height
Outputs
- BMI
- Category
- Healthy weight low
- Healthy weight high
Formula
BMI = weight(lb) x 703 / height(in)^2.