Refrigerator Cubic Feet Calculator
Measure the inside cavity in inches. The calculator divides by 1,728 to get cubic feet — the manufacturer-rated unit.
How to Measure Correctly
Manufacturers measure the empty interior cavity, including drawer space. Remove shelves and bins, then measure wall-to-wall: width (left to right), depth (back to door opening), and height (floor to ceiling of cavity).
Don't subtract for crisper drawers or shelving — those are part of the rated volume.
Typical Sizes
| Type | Cubic Feet |
|---|---|
| Compact / mini fridge | 1.7–4.5 ft³ |
| Apartment fridge | 7–10 ft³ |
| Top-freezer (standard) | 14–22 ft³ |
| Bottom-freezer | 18–25 ft³ |
| Side-by-side | 20–28 ft³ |
| French door | 25–30 ft³ |
| Counter-depth | 15–22 ft³ |
Sizing for Your Household
Rule of thumb: 4–6 cubic feet per adult. A family of 4 typically needs 20–25 ft³. Add capacity if you batch-cook, garden, or shop weekly vs daily.
Energy and Capacity
Bigger isn't always better — an oversized fridge runs partially empty and wastes energy. Check Energy Star kWh/year ratings, which normalize for capacity. Counter-depth models trade ~3–5 ft³ for a flush kitchen look.
Other Appliances Measured in Cubic Feet
Refrigerators aren't the only appliance rated this way. Chest and upright freezers use the same width × depth × height ÷ 1,728 method. Washing machines list drum capacity in cubic feet — front-load drums run 4.0–4.5 ft³, top-load drums 3.5–5.5 ft³ — measured as drum diameter and depth rather than a full cavity. Dishwashers and wine coolers are smaller still, typically under 3 ft³. If you're comparing several appliances at once, the unit converter converts any of these cubic-foot figures to liters for spec sheets that use metric units, and the storage calculator helps if you're figuring out whether a new unit will fit through a doorway or into a moving truck alongside everything else.
Frequently Asked Questions
How do I measure a fridge in cubic feet?
Measure inside cavity width × depth × height in inches. Multiply, then divide by 1,728.
What is a good fridge size for a family of 4?
20–25 cubic feet covers most families of four.
Apartment vs standard fridge cubic feet?
Apartment: 7–10 ft³. Standard: 18–26 ft³. French door: 25–30 ft³.
Should I measure with shelves in?
No — measure the empty cavity. Shelf area is reported separately by manufacturers.
Is fridge volume gross or usable?
Manufacturers usually publish gross interior volume. Usable space is 10–15% less due to drawers and trays.
How big is a mini fridge?
1.7–4.5 cubic feet typically.
Standard freezer size?
Top freezers: 4–7 ft³. Chest freezers: 5–25 ft³.
Does cubic feet relate to energy use?
Larger fridges generally use more energy, but Energy Star efficiency varies widely. Compare kWh/yr at the same volume.