Fridge Size Calculator

If you want to know how many cubic feet your refrigerator has, there are two simple ways to find out. If you know the model number, you can look up the manufacturer’s published capacity. If you cannot find the model or its specifications, you can estimate the capacity by measuring the refrigerator’s interior and calculating its approximate volume.

1. Check the Manufacturer’s Specifications

The easiest way to find your refrigerator’s capacity is to look up its model number. Search for the model on the manufacturer’s website or in the product documentation and look for the listed capacity, which may be shown as total capacity or refrigerator capacity.

This gives you the manufacturer’s published capacity for that specific model.

If you cannot find the model number or its specifications, you can still get a useful estimate by measuring the interior of the refrigerator.

2. Measure the Interior and Calculate

To estimate your refrigerator’s cubic-foot capacity, measure the interior width, height, and depth of the refrigerator compartment. For the simplest calculation, use inches for all three measurements.

The basic formula is:

Estimated Cubic Feet = Width × Height × Depth ÷ 1,728

For example, if the interior measures 28 inches wide, 30 inches high, and 18 inches deep:

28 × 30 × 18 ÷ 1,728 = 8.75 cubic feet

So the refrigerator has an estimated capacity of about 8.8 cubic feet.

This calculation gives you a practical estimate of the refrigerator’s interior volume. It is not intended to reproduce the exact capacity published by the manufacturer, but it can give you a good idea of whether your refrigerator is around 8, 10, 15, or 20 cubic feet.

If your refrigerator has separate refrigerator and freezer compartments, measure each compartment separately, calculate its volume, and add the results together to estimate the total capacity.

How to Measure Your Refrigerator

To estimate your refrigerator’s capacity, you need to measure the space inside the refrigerator rather than its outside dimensions. The three measurements you need are the interior width, interior height, and interior depth. These measurements can then be entered into the calculator above or used with the cubic-foot formula.

Measure the Interior Width

Measure the distance from one side of the refrigerator compartment to the other. Take the measurement across the usable interior space, not the width of the refrigerator cabinet from the outside.

Measure the Interior Height

Measure the vertical distance from the bottom to the top of the refrigerator compartment. If the refrigerator has separate compartments, such as a fresh-food section and a freezer, measure each compartment separately.

Measure the Interior Depth

Measure the distance from the front of the interior space to the back. Use the actual interior depth rather than the refrigerator’s overall outside depth.

Measure Separate Compartments Separately

If your refrigerator has separate refrigerator and freezer compartments, measure each one individually. Calculate the estimated volume of each compartment and then add the results together to get the approximate total capacity.

For example, if the refrigerator compartment is estimated at 12.5 cubic feet and the freezer compartment is estimated at 4.5 cubic feet, the total estimated capacity is about 17 cubic feet.

Why Your Estimate May Differ From the Manufacturer’s Capacity

The number calculated from your measurements is an estimate of the refrigerator’s interior volume, so it may not exactly match the capacity listed by the manufacturer. Refrigerator interiors are not perfect rectangular boxes and contain various components and structural features that affect the available space. Manufacturers also use standardized procedures to determine their published capacity.

For this reason, treat the calculator result as an approximate capacity rather than an exact specification. If you need the official capacity for a specific refrigerator, use the manufacturer’s published specification for its model.