BMI 123.5 lbs at 5'4

What's the Body Mass Index for a 5'4 man or woman who weighs 123.5 pounds?

BMI (Body Mass Index) is an estimate to see if somebody is a healthy weight. It is simply a math equation and doesn't take other health factors into account, such as age, sex, muscle mass, body fat percentage, etc.
How is BMI calculated?
BMI is calculated by the following formula:
Pounds / Inches2 * 703.06957964.
To calculate the BMI of a person who is 5'4 and weighs 123.5 pounds, this would be the formula:
123.5 / 642 * 703.06957964.
That would be a BMI of 21.2