ACSM Personal Trainer Certification Practice Exam 2025 – All-in-One Study Resource to Achieve Certification Success!

The formula to calculate Body Mass Index (BMI) involves using a person's weight and height to assess whether they are underweight, normal weight, overweight, or obese. The correct formula, which is choice B, is to take the weight in pounds, divide it by the height in inches squared, and then multiply by 703.

This formula allows for the conversion of weight and height into a standardized index that reflects body mass relative to height. The multiplication by 703 is crucial when using pounds and inches since it adjusts the units to match the metric system. This makes the results more consistent with global standards for BMI interpretation.

The other options present different calculations that do not produce the standard BMI. For example, calculating weight in kg divided by height in meters (without additional adjustments) does not provide the correct index. Similarly, using the inverse formula of height in cm or using a different numerical adjustment would not yield the BMI as intended. Thus, the use of choice B is what aligns with the accepted method for calculating BMI, making it the correct answer.