Convert cubic feet to gallons, liters, cubic meters, cubic yards, and 4 more volume units. Features appliance size comparisons and water utility CCF display.
The cubic foot (ft³) is a standard unit of volume in the US customary system, used for measuring everything from refrigerator capacity to natural gas consumption, HVAC airflow, and water utility billing. One cubic foot equals 1,728 cubic inches, 7.48 US gallons, or 28.32 liters.
This multi-direction converter accepts input in six different volume units and outputs results in cubic feet, cubic meters, gallons, liters, cubic yards, cubic inches, quarts, and CCF (hundred cubic feet, the standard water billing unit). Preset buttons cover common volumes from 1 ft³ to 1 MCF (1,000 ft³).
Whether you are sizing a moving truck, calculating water usage from your utility bill, comparing refrigerator capacities, or converting between metric and imperial volume units, this tool provides instant results alongside a visual comparison to everyday objects like shoeboxes, fridges, and shipping containers. It is also helpful for estimating storage, utility, and logistics requirements with consistent units.
Cubic feet appear in US appliance specs, HVAC ratings, water bills, and natural gas statements, but many people think in gallons or liters. This tool bridges the gap with one-step conversions and includes the CCF unit used by water utilities, which is otherwise hard to find in generic converters and spreadsheets.
1 ft³ = 1,728 in³ = 7.48052 gal = 28.3168 L 1 ft³ = 0.0283168 m³ = 1/27 yd³ 1 CCF = 100 ft³ = 748 gal
Result: 1 cubic yard
27 ft³ = 1 yd³ = 0.7646 m³ = 201.97 gallons = 764.55 liters.
The cubic foot is the go-to volume unit for US consumers. Refrigerators, freezers, ovens, and microwaves all list their interior capacity in cubic feet. Moving companies estimate truck sizes in cubic feet, and storage units are often described by their floor area plus an assumed height.
Water utilities bill in CCF (100 ft³) or thousands of gallons. Natural gas is metered in cubic feet and billed in therms or MCF. Understanding these units helps you audit your utility bills and compare usage over time. For example, the average US household uses about 80–100 gallons per person per day, or roughly 10.7–13.4 ft³ per person per day.
To find the volume of a rectangular space in cubic feet, measure length, width, and height in feet and multiply them together. For irregular shapes, break the space into rectangles. For cylinders (like tanks), use V = π × r² × h where r and h are in feet. This gives volume directly in cubic feet.
1 cubic foot = 7.48052 US gallons. For imperial gallons, 1 ft³ = 6.22884 imp gal.
1 cubic foot = 28.3168 liters.
CCF stands for Centum Cubic Feet, meaning 100 cubic feet. 1 CCF = 748.05 gallons. It is the standard billing unit for most US water utilities.
Divide by 35.3147. For example, 100 ft³ = 2.832 m³.
Exactly 27. A cubic yard is 3 ft × 3 ft × 3 ft.
Multiply length × width × height, all in feet. A 12 × 10 × 8 room = 960 cubic feet.