Calculating Cubic Feet in a Chest Freezer

Quck answer

To figure out the cubic feet in a chest freezer, follow these steps:

1. Measure the length, width, and height of the interior of the freezer in feet.

2. Multiply the length by the width and then by the height to get the total cubic feet.

3. Round the result to the nearest whole number for simplicity.

For example, if the length is 3 feet, the width is 2 feet, and the height is 2.5 feet, the calculation would be:

3 ft x 2 ft x 2.5 ft = 15 cubic feet

So, the chest freezer has a capacity of approximately 15 cubic feet.


While the capacity of your freezer may not often cross your mind, there are times when knowing the measurement is useful. For example, if you’re purchasing a large amount of prepackaged meat or storing a friend’s catch of fish, knowing the exact number of cubic feet of storage space will let you know if you have enough room. When it comes time to buy a new chest freezer, knowing the capacity of your current freezer will ensure that you purchase one with enough space for your needs. The exterior size alone does not indicate the interior capacity, and the manufacturer’s claim may not always be accurate.

Step 1

Remove all items from the freezer, or at least move them to the side while taking measurements.

Step 2

Measure the depth of the freezer from the bottom to the highest point it can be filled without obstructing the lid. Write this number down, using feet as the unit of measurement. For example, if the measurement is 2 feet 6 inches, write it as 2.5 feet. Every 3 inches is equivalent to an additional 0.25 feet, and 9 inches is equivalent to 0.75 feet.

Step 3

Measure the width of the interior of the freezer from one inner wall to the other. Write down this measurement in feet as well.

Step 4

Measure the length of the interior of the freezer from the front inside wall to the back inside wall. Jot down this measurement in feet.

Step 5

Multiply the three numbers together to determine the capacity of the freezer in cubic feet.

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