Volume conversion
Cubic foot to US liquid gallon converter
Convert ft³ to gal instantly, choose the displayed precision, and verify the result with the formula and reference table below.
US liquid gallon (gal)
Rounded for display only; calculations retain full precision.
Rounding and precision rules
- Convr calculates first and rounds the displayed result only once, at the final step.
- The default is a maximum of 6 decimal places; trailing zeros are removed.
- Very small values that would appear as zero, and values of 10¹² or more, use scientific notation.
- Display precision is not measurement uncertainty. For scientific, engineering, or regulated work, retain only the digits justified by the source measurement.
Calculation
Cubic foot to US liquid gallon formula
gal = ft³ × 7.480519
Calculations retain full precision and the result is rounded only for display.
Worked example
For 10 ft³, the result is 74.805195 gal. Substitute 10 ft³ into the formula to obtain 74.805195 gal.
A numerical value expressed in us liquid gallon is usually larger than the same measurement expressed in cubic foot, because 1 ft³ equals 7.480519 gal.
Cubic foot to US liquid gallon reference table
Common values rounded to a maximum of 6 decimal places.
| Cubic foot (ft³) | US liquid gallon (gal) |
|---|---|
| 1 ft³ | 7.480519 gal |
| 5 ft³ | 37.402597 gal |
| 10 ft³ | 74.805195 gal |
| 50 ft³ | 374.025974 gal |
| 100 ft³ | 748.051948 gal |
Understanding the units
About Cubic foot and US liquid gallon
Cubic foot (ft³)
One cubic foot (ft³) equals 28.316846592 L, the base relationship used for this volume conversion.
US liquid gallon (gal)
One us liquid gallon (gal) equals 3.785411784 L, the base relationship used for this volume conversion.
When this conversion is useful
Cubic foot to US liquid gallon conversion is useful for recipes, beverage quantities, fuel volumes, laboratory measurements, and container capacities. It lets you compare the same volume or capacity across documents, tools, or standards that use different units.
Learn with Convr
Conversion guides
Metric vs Imperial Units: A Practical Comparison
Understand how metric, US customary, and Imperial units differ, where each system is used, and how to convert between them reliably.
Read guide →Everyday conversionsUS Gallons vs Imperial Gallons: What Is the Difference?
Compare US liquid gallons and Imperial gallons, understand their exact liter values, and avoid common fuel and recipe conversion errors.
Read guide →Answers at a glance
Frequently asked questions
How do you convert Cubic foot to US liquid gallon?
Use the formula gal = ft³ × 7.480519. Enter any value in the converter above to calculate the result instantly.
How many us liquid gallon are in one cubic foot?
One cubic foot equals 7.480519 us liquid gallon.
How does Convr round Cubic foot to US liquid gallon results?
Convr keeps full numeric precision during the calculation and rounds only the displayed result. The default is a maximum of 6 decimal places, with selectable precision on this page.
Can I convert negative or decimal cubic foot values?
Yes. The converter accepts positive, negative, decimal, and scientific-notation values. Negative values are physically meaningful for some scales, such as temperature, but not for every measured quantity.
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