How do you calculate the cubic size of an item when your measurements are in inches?

Question

18.5" x 18.5" x 29"

Answer 1

First responder is mistaken, its 12, not 16.

Like others said, if you want the final value in cubic inches, just multiply the 3. If you want it in cubic feet, multiply them out, then divide by 1728 (1728 comes from 12*12*12, converting each inch unit to foot.)

Answer 2

Since you were not specific, I am assuming that you want the volume of a rectangular solid. The equation for that is:
Volume = Length x Width x Height
OK, lets begin by replacing the words by the numbers:
Volume = 18.5" x 18.5" x 29" and that equals 9,925.25 cubic inches. If you need to know the volume in cubic feet, you will have to divide the value by 1728. That number is found by converting inches to feet three times:
12 in/ft x 12 in/ft x12 in/ft = 1728 cu-in/cu-ft
When we divide 9,925,25 cu-in by 1728 cu-in/cu-ft, we get:
5.74 cu-ft (rounded to the nearest hundredth).

Answer 3

it depends on what units do u need to calculate the answer in.
simply multiply the 3 dimensions in inches (as u have given above) for an answer in cubic inches or multiply by cube of 2.5 to obtain the figure in cubic cm.

Answer 4

Just multiply the numbers...

18.5 * 18.5 * 29 = 9925.25 cubic inches
If you'd like it in feet, convert to feet first.

18.5/12ft * 18.5/12ft * 29/12ft = 5.743 cubic feet.

Answer 5

cubic is refering to volume: in^3 -- where the 3 is commonly called 'cubed'.

18.5" * 18.5" * 29" = 9925.25 in^3

So you would read the volume as:

"9925.25 inches cubed"

Answer 6

Inches are base 16, right? So, convert them to hex, multiply them together and then convert back to decimal. Or you could convert to Metric units, then convert back...

This is why the English measurement system should not be used...

Answer 7

you just multiply them, and the answer units are inches cubed. nothing to it.