BMI

Body mass index (BMI) is a measure of body fat based upon your height and weight that applies to adult men and women only. The formula in imperial freedom units is as follows.

$$\text{BMI}=703.0717\ast \frac{\text{Pounds}}{{\text{Inches}}^2}$$

For a 175 pound human that is 73 inches tall this works out to a BMI of…

$$\begin{array}{rl}\text{BMI}& =703.0717\ast \frac{\text{Pounds}}{{\text{Inches}}^2}\\ & \\ \text{BMI}& =703.0717\ast \frac{175}{73^2}\\ & \\ \text{BMI}& =703.0717\ast \frac{175}{5329}\\ & \\ \text{BMI}& =703.0717\ast 0.032839181835241\\ & \\ \text{BMI}& =23.088299399512105\end{array}$$

…approximately 23.1. BMI breakpoints for weight healthiness are generally considered as follows…

BMI Range	Classification
Below 18.5	Underweight
18.5-25	Normal
25-30	Overweight
30-35	Class 1 Obesity
35-40	Class 2 Obesity
Above 40	Class 3 Obesity

Given the chart above we can see that our 175 pound 73 inch tall human is considered normal weight.