Cubic Feet Guide for Refrigerator Sizes

Cubic Feet Guide for Refrigerator Sizes

Refrigerator capacity is measured in cubic feet (ft³). The number refers to the internal usable volume, not the external dimensions.

Refrigerator Sizes by Type

Type	Capacity (ft³)	Width	Best For
Mini fridge	1.7–4.5	18–24”	Dorm rooms, offices
Top-freezer	14–22	28–32”	Budget-friendly, small kitchens
Bottom-freezer	18–25	29–33”	Frequent fridge access
Side-by-side	22–28	32–36”	Narrow spaces
French door	20–30	30–36”	Large families

How to Measure Refrigerator Space

Measure the width, depth, and height of the opening in inches. Convert to feet by dividing each by 12. Multiply for cubic feet.

Example: Opening measures 36” wide × 30” deep × 70” tall.

• 36 ÷ 12 = 3 ft
• 30 ÷ 12 = 2.5 ft
• 70 ÷ 12 = 5.83 ft
• Volume = 3 × 2.5 × 5.83 = 43.75 ft³ of available space

Leave at least 1 inch clearance on each side and 2 inches at the top for ventilation.

Average Household Needs

• 1–2 people: 12–16 ft³
• 3–4 people: 18–22 ft³
• 5+ people: 22–30 ft³

A good rule: plan 4–6 cubic feet per person in the household.

Use our Cubic Feet Calculator to measure your kitchen space before buying a new refrigerator.