Home › Unit Converters › Cubic Feet to Gallons Converter

Cubic Feet to Gallons Converter

A quick two-way ft³ ⇄ gal converter: type in either box, choose how many decimals you want and copy the answer with one click.

ft³
gal
 

Step-by-step calculation

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    How to use the Cubic Feet to Gallons Converter

    1. Type a value in the Cubic feet box. The gallons (US) result appears instantly.
    2. Going the other way? Type in the Gallons (US) box, or press the ⇄ swap button.
    3. Set the precision with the decimal places menu.
    4. Check the working in the step-by-step box, then press Copy result or click any row in the tables below.

    Cubic feet to gallons (US) formula

    gal = ft³ × 7.480519481
    1. Take the value in cubic feet.
    2. Multiply it by 7.480519481 (the number of US gallons in one cubic foot).

    Example: 1 ft³ × 7.480519481 = 7.48052 gal.

    Reverse formula (US gallons to cubic feet): ft³ = gal ÷ 7.480519481. Example: 74.8052 gal ÷ 7.480519481 = 10 ft³.

    Quick mental estimate: multiply by about 7.5. For exact answers use the converter above.

    ft³ to gal conversion table (1–100)

    Click any row to load it into the converter.

    Cubic feet to gallons (US)

    Cubic feetGallons (US)
    1 ft³7.48 gal
    2 ft³14.96 gal
    3 ft³22.44 gal
    4 ft³29.92 gal
    5 ft³37.4 gal
    6 ft³44.88 gal
    7 ft³52.36 gal
    8 ft³59.84 gal
    9 ft³67.32 gal
    10 ft³74.81 gal
    11 ft³82.29 gal
    12 ft³89.77 gal
    13 ft³97.25 gal
    14 ft³104.73 gal
    15 ft³112.21 gal
    16 ft³119.69 gal
    17 ft³127.17 gal
    18 ft³134.65 gal
    19 ft³142.13 gal
    20 ft³149.61 gal
    21 ft³157.09 gal
    22 ft³164.57 gal
    23 ft³172.05 gal
    24 ft³179.53 gal
    25 ft³187.01 gal
    26 ft³194.49 gal
    27 ft³201.97 gal
    28 ft³209.45 gal
    29 ft³216.94 gal
    30 ft³224.42 gal
    31 ft³231.9 gal
    32 ft³239.38 gal
    33 ft³246.86 gal
    34 ft³254.34 gal
    35 ft³261.82 gal
    36 ft³269.3 gal
    37 ft³276.78 gal
    38 ft³284.26 gal
    39 ft³291.74 gal
    40 ft³299.22 gal
    41 ft³306.7 gal
    42 ft³314.18 gal
    43 ft³321.66 gal
    44 ft³329.14 gal
    45 ft³336.62 gal
    46 ft³344.1 gal
    47 ft³351.58 gal
    48 ft³359.06 gal
    49 ft³366.55 gal
    50 ft³374.03 gal
    51 ft³381.51 gal
    52 ft³388.99 gal
    53 ft³396.47 gal
    54 ft³403.95 gal
    55 ft³411.43 gal
    56 ft³418.91 gal
    57 ft³426.39 gal
    58 ft³433.87 gal
    59 ft³441.35 gal
    60 ft³448.83 gal
    61 ft³456.31 gal
    62 ft³463.79 gal
    63 ft³471.27 gal
    64 ft³478.75 gal
    65 ft³486.23 gal
    66 ft³493.71 gal
    67 ft³501.19 gal
    68 ft³508.68 gal
    69 ft³516.16 gal
    70 ft³523.64 gal
    71 ft³531.12 gal
    72 ft³538.6 gal
    73 ft³546.08 gal
    74 ft³553.56 gal
    75 ft³561.04 gal
    76 ft³568.52 gal
    77 ft³576 gal
    78 ft³583.48 gal
    79 ft³590.96 gal
    80 ft³598.44 gal
    81 ft³605.92 gal
    82 ft³613.4 gal
    83 ft³620.88 gal
    84 ft³628.36 gal
    85 ft³635.84 gal
    86 ft³643.32 gal
    87 ft³650.81 gal
    88 ft³658.29 gal
    89 ft³665.77 gal
    90 ft³673.25 gal
    91 ft³680.73 gal
    92 ft³688.21 gal
    93 ft³695.69 gal
    94 ft³703.17 gal
    95 ft³710.65 gal
    96 ft³718.13 gal
    97 ft³725.61 gal
    98 ft³733.09 gal
    99 ft³740.57 gal
    100 ft³748.05 gal

    Gallons (US) to cubic feet

    Gallons (US)Cubic feet
    1 gal0.13 ft³
    2 gal0.27 ft³
    3 gal0.4 ft³
    4 gal0.53 ft³
    5 gal0.67 ft³
    6 gal0.8 ft³
    7 gal0.94 ft³
    8 gal1.07 ft³
    9 gal1.2 ft³
    10 gal1.34 ft³
    11 gal1.47 ft³
    12 gal1.6 ft³
    13 gal1.74 ft³
    14 gal1.87 ft³
    15 gal2.01 ft³
    16 gal2.14 ft³
    17 gal2.27 ft³
    18 gal2.41 ft³
    19 gal2.54 ft³
    20 gal2.67 ft³
    21 gal2.81 ft³
    22 gal2.94 ft³
    23 gal3.07 ft³
    24 gal3.21 ft³
    25 gal3.34 ft³
    26 gal3.48 ft³
    27 gal3.61 ft³
    28 gal3.74 ft³
    29 gal3.88 ft³
    30 gal4.01 ft³
    31 gal4.14 ft³
    32 gal4.28 ft³
    33 gal4.41 ft³
    34 gal4.55 ft³
    35 gal4.68 ft³
    36 gal4.81 ft³
    37 gal4.95 ft³
    38 gal5.08 ft³
    39 gal5.21 ft³
    40 gal5.35 ft³
    41 gal5.48 ft³
    42 gal5.61 ft³
    43 gal5.75 ft³
    44 gal5.88 ft³
    45 gal6.02 ft³
    46 gal6.15 ft³
    47 gal6.28 ft³
    48 gal6.42 ft³
    49 gal6.55 ft³
    50 gal6.68 ft³
    51 gal6.82 ft³
    52 gal6.95 ft³
    53 gal7.09 ft³
    54 gal7.22 ft³
    55 gal7.35 ft³
    56 gal7.49 ft³
    57 gal7.62 ft³
    58 gal7.75 ft³
    59 gal7.89 ft³
    60 gal8.02 ft³
    61 gal8.15 ft³
    62 gal8.29 ft³
    63 gal8.42 ft³
    64 gal8.56 ft³
    65 gal8.69 ft³
    66 gal8.82 ft³
    67 gal8.96 ft³
    68 gal9.09 ft³
    69 gal9.22 ft³
    70 gal9.36 ft³
    71 gal9.49 ft³
    72 gal9.62 ft³
    73 gal9.76 ft³
    74 gal9.89 ft³
    75 gal10.03 ft³
    76 gal10.16 ft³
    77 gal10.29 ft³
    78 gal10.43 ft³
    79 gal10.56 ft³
    80 gal10.69 ft³
    81 gal10.83 ft³
    82 gal10.96 ft³
    83 gal11.1 ft³
    84 gal11.23 ft³
    85 gal11.36 ft³
    86 gal11.5 ft³
    87 gal11.63 ft³
    88 gal11.76 ft³
    89 gal11.9 ft³
    90 gal12.03 ft³
    91 gal12.16 ft³
    92 gal12.3 ft³
    93 gal12.43 ft³
    94 gal12.57 ft³
    95 gal12.7 ft³
    96 gal12.83 ft³
    97 gal12.97 ft³
    98 gal13.1 ft³
    99 gal13.23 ft³
    100 gal13.37 ft³

    Common values

    Cubic feetGallons (US)Example
    0.5 ft³3.74 galHalf cubic foot
    1 ft³7.48 gal1 cubic foot
    1.5 ft³11.22 galBag of potting soil (approx.)
    2 ft³14.96 gal2 ft³
    3 ft³22.44 gal3 ft³
    10 ft³74.81 galSmall chest freezer (approx.)
    20 ft³149.61 galFridge (approx.)
    27 ft³201.97 gal1 cubic yard
    100 ft³748.05 gal100 ft³

    About cubic feet and gallons (US)

    Cubic feet (ft³). A cubic foot is the volume of a cube one foot on each side: 1,728 cubic inches or about 28.32 liters.

    Gallons (US) (gal). The US liquid gallon is exactly 231 cubic inches, about 3.785 liters. The UK imperial gallon is larger, about 4.546 liters.

    Frequently asked questions

    1 cubic foot equals how many US gallons?

    One cubic foot equals 7.48052 US gallons. These are US customary measures.

    How do you convert cubic feet to US gallons?

    Multiply the number of cubic feet by 7.480519481. For example, 1 ft³ × 7.480519481 = 7.48052 gal.

    What is 10 cubic feet in US gallons?

    10 ft³ is 74.8052 gal (small chest freezer (approx.)).

    How much is 27 cubic feet in US gallons?

    27 cubic feet equals 201.974 US gallons.

    How do I convert US gallons back to cubic feet?

    Divide by 7.480519481, or press the ⇄ swap button above. For example, 74.8052 gal ÷ 7.480519481 = 10 ft³.

    Are US and UK gallons the same?

    No. The US liquid gallon is 3.785 liters, while the UK imperial gallon is 4.546 liters, about 20% larger. US quarts and pints are smaller than imperial ones for the same reason. This converter uses US liquid measures.

    How do I find a volume in cubic feet?

    Multiply length × width × height, all in feet. A box 2 ft × 3 ft × 4 ft holds 24 cubic feet, which is about 179.5 US gallons or 0.68 m³.

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