Convert Cubic Feet to Gallons

Enter the volume in cubic feet below to get the value converted to gallons.

Results in Gallons:
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1 ft³ = 7.480519 gal

How to Convert Cubic Feet to Gallons

Calculators can be used to convert measurements from one unit to another

To convert a cubic foot measurement to a gallon measurement, multiply the volume by the conversion ratio. One cubic foot is equal to 7.480519 gallons, so use this simple formula to convert:

gallons = cubic feet × 7.480519

The volume in gallons is equal to the cubic feet multiplied by 7.480519.

For example, here's how to convert 5 cubic feet to gallons using the formula above.
5 ft³ = (5 × 7.480519) = 37.402597 gal

Cubic feet and gallons are both units used to measure volume. Keep reading to learn more about each unit of measure.

Cubic Feet

The cubic foot is a unit of volume that is equal to the space consumed by a cube having sides one foot on each edge.

The cubic foot is a US customary and imperial unit of volume. A cubic foot is sometimes also referred to as a cubic ft. Cubic feet can be abbreviated as ft³, and are also sometimes abbreviated as cu foot, cu ft, or CF. For example, 1 cubic foot can be written as 1 ft³, 1 cu foot, 1 cu ft, or 1 CF.

Try our cubic footage calculator to calculate the volume of a space.


The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups. The US liquid gallon should not be confused with the US dry gallon or the imperial gallon, which are different units of measure.

The gallon is a US customary unit of volume. Gallons can be abbreviated as gal, for example 1 gallon can be written as 1 gal.

Cubic Foot Measurements and Equivalent Gallon Conversions

Common cubic foot values converted to the equivalent gallon value
Cubic Feet Gallons
1 ft³ 7.4805 gal
2 ft³ 14.96 gal
3 ft³ 22.44 gal
4 ft³ 29.92 gal
5 ft³ 37.4 gal
6 ft³ 44.88 gal
7 ft³ 52.36 gal
8 ft³ 59.84 gal
9 ft³ 67.32 gal
10 ft³ 74.81 gal
11 ft³ 82.29 gal
12 ft³ 89.77 gal
13 ft³ 97.25 gal
14 ft³ 104.73 gal
15 ft³ 112.21 gal
16 ft³ 119.69 gal
17 ft³ 127.17 gal
18 ft³ 134.65 gal
19 ft³ 142.13 gal
20 ft³ 149.61 gal
21 ft³ 157.09 gal
22 ft³ 164.57 gal
23 ft³ 172.05 gal
24 ft³ 179.53 gal
25 ft³ 187.01 gal
26 ft³ 194.49 gal
27 ft³ 201.97 gal
28 ft³ 209.45 gal
29 ft³ 216.94 gal
30 ft³ 224.42 gal
31 ft³ 231.9 gal
32 ft³ 239.38 gal
33 ft³ 246.86 gal
34 ft³ 254.34 gal
35 ft³ 261.82 gal
36 ft³ 269.3 gal
37 ft³ 276.78 gal
38 ft³ 284.26 gal
39 ft³ 291.74 gal
40 ft³ 299.22 gal

More Cubic Foot Volume Conversions

US Liquid
Convert to Quarts
1 ft³ is equal to 29.922077 quarts
Convert to Pints
1 ft³ is equal to 59.844155 pints
Convert to Fluid Ounces
1 ft³ is equal to 957.506473 fluid ounces
US Cooking
Convert to Cups
1 ft³ is equal to 119.688309 cups
Convert to Tablespoons
1 ft³ is equal to 1,915.01 tablespoons
Convert to Teaspoons
1 ft³ is equal to 5,745.04 teaspoons
US Customary Volume
Convert to Cubic Inches
1 ft³ is equal to 1,728 cubic inches
Convert to Cubic Yards
1 ft³ is equal to 0.037037 cubic yards
Metric Volume
Convert to Liters
1 ft³ is equal to 28.316846 liters
Convert to Milliliters
1 ft³ is equal to 28,316.8 milliliters
Convert to Cubic Centimeters
1 ft³ is equal to 28,316.8 cubic centimeters
Convert to Cubic Meters
1 ft³ is equal to 0.028317 cubic meters