How many cubic inches are in a cubic foot?

A cubic foot is defined as the volume of a cube that measures one foot on each side. Since there are 12 inches in a foot, the formula for calculating the volume in cubic inches involves cubing the number of inches per foot.

To find the total volume in cubic inches, you need to calculate:

1 foot = 12 inches

Therefore:

Volume in cubic inches = 12 inches × 12 inches × 12 inches = 12^3 = 1728 cubic inches.

So, a cubic foot contains 1728 cubic inches, which makes this the correct answer to the question. Understanding this concept is crucial for conversions in dimensional measurements used in postal services, shipping, and packaging where volume calculations are often necessary.