Showing results for Illinois (IL)
Calculators/Health & Fitness

BMI Calculator

Calculate your Body Mass Index (BMI) with imperial or metric measurements. See your weight category (underweight, normal, overweight, or obese) and a visual scale.

lbs
ft
in
BMI Scale
UnderweightNormalOverweightObese
BMI
24.4
Category
Normal weight

How to Use This Calculator

1
Choose your unit system
Select Imperial (lbs, feet/inches) or Metric (kg, cm) depending on how you measure. Both systems produce identical BMI results after conversion.
2
Enter your weight and height
Use accurate measurements for the best result. Weigh yourself in the morning without clothing. Measure height without shoes, standing straight against a wall.
3
Interpret your BMI
BMI under 18.5 is underweight; 18.5–24.9 is normal; 25–29.9 is overweight; 30+ is obese. BMI is a screening tool, not a diagnostic — see a doctor for full health assessment.

Real-World Examples

Average American Adult Male
Weight
197 lbs
Height
5'9"
ResultBMI 29.1 — Overweight

The average American male BMI is approximately 29, just below the obese threshold.

Healthy Weight Example
Weight
155 lbs
Height
5'9"
ResultBMI 22.9 — Normal

A BMI of 22.9 falls in the middle of the healthy range (18.5–24.9).

Frequently Asked Questions

Stay in the loop

Get notified when new calculators and features are added. No spam, ever.