Everyday
BMI Calculator
Calculate body mass index from height and weight. Change the inputs below and the estimate updates immediately.
Input
Your numbers
Calculated result
BMI
25.8
General category
Overweight
Estimate only. Verify important decisions with an appropriate professional or official source.
How to use it
A quick estimate, without the spreadsheet.
Inputs and units
Enter weight in pounds and height in inches.
Formula
BMI = 703 × pounds / inches². Adult categories use cutoffs of 18.5, 25 and 30.
Worked example
180 pounds at 70 inches gives a BMI of about 25.8.
Assumptions and limitations
Adult screening estimate for ages 20 and older. BMI alone does not diagnose health or measure body composition; child and teen assessment uses age-specific percentiles.
Reference: CDC adult BMI calculator.
Keep calculating
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