What this conversion means in practice
This page is intentionally focused on one volume pair so you can convert quickly without scanning a long all-purpose tool. These conversions are used in cooking, nutrition, labeling, fluid handling, lab work, and logistics where unit systems often get mixed.
The governing relationship here is 1 cubic feet = 7.480519480519 gallon. If results look suspicious, check whether the source value is US or metric, and confirm that abbreviations match the expected unit family. In volume, that matters because similar labels can represent different systems.
Use the calculator for exact values, the conversion table for quick references, and the unit notes below when you need context for reports, recipes, product specs, or technical instructions.
How to convert cubic foot to gallon (us)
Multiply the cubic foot value by 7.480519480519 to get gallon (us).
Example: 15 cubic feet × 7.480519480519 = 112.207792207792 gallon
Cubic Foot
Definition: A cubic foot (ft³) is the volume of a cube one foot on each side, about 28.3168 liters.
History and origin: It follows directly from the foot-based imperial/customary measurement systems.
Current use: Common in HVAC, construction, and shipping volume descriptions in the US.
Gallon (US)
Definition: The US liquid gallon is defined as exactly 231 cubic inches, about 3.785 liters.
History and origin: The US gallon descends from older English wine-gallon standards used in colonial trade.
Current use: Common in the US for fuel, milk, paint, and other household liquid quantities.
Cubic Foot to Gallon (US) conversion table
| Cubic Foot (cubic feet) | Gallon (US) (gallon) |
|---|---|
| 0.1 cubic feet | 0.7480519481 gallon |
| 1 cubic feet | 7.4805194805 gallon |
| 2 cubic feet | 14.961038961 gallon |
| 3 cubic feet | 22.4415584416 gallon |
| 5 cubic feet | 37.4025974026 gallon |
| 10 cubic feet | 74.8051948052 gallon |
| 20 cubic feet | 149.6103896104 gallon |
| 50 cubic feet | 374.025974026 gallon |
| 100 cubic feet | 748.0519480519 gallon |
| 1,000 cubic feet | 7,480.5194805195 gallon |
Cubic Foot to Gallon (US) FAQ
Is this factor exact?
Some conversion links are exact by unit definition, while display values may be rounded for readability. Use higher precision when documenting formulas, labels, or technical specs.
Why do volume mistakes happen so often?
Volume has many similarly named units across systems. US and UK gallons differ, fluid ounces differ by system, and kitchen shorthand can hide assumptions. Verify system and abbreviation first.
How many decimals should I keep?
Recipes often use low precision, while production and lab workflows may require more. Keep a precision standard across your workflow to avoid compounding rounding differences.