EV-T14Standalone tool

BMI calculator

Screen adult body mass index in US or metric units with visible CDC category boundaries.

EV-T14

Calculate BMI.

Screen adult body mass index in US or metric units. BMI is a population screening number, not a medical diagnosis.

COMMON WAYS TO ASK

What is my BMI?
Calculate BMI from height and weight
Is my BMI in the healthy range?

QUICK ANSWER

What this calculator tells you.

Enter height and weight in US or metric units to calculate body mass index and see which CDC adult screening range it falls in. BMI screens populations; it does not measure body fat directly or diagnose any condition.

WORKED EXAMPLE

5 ft 9 in and 160 lb

INPUT69 in · 160 lb · US units

RESULT703 × 160 ÷ 69² = BMI 23.6 · healthy weight range

CHECK THE EDGE CASES

Questions people ask next.

Is BMI accurate for athletes or older adults?

BMI cannot separate muscle from fat, so muscular people can screen high and people who have lost muscle can screen low. Waist measurement, body composition, and clinical assessment give a fuller picture.

Does this calculator work for children?

No. Children and teens are screened with age- and sex-specific BMI percentiles, not the fixed adult cut-offs this tool shows. Use a pediatric growth-chart tool instead.