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Cups to Gallons Converter

Type a value in US cups to get US gallons instantly, or type in the gallons (US) box to convert back. The formula with your number, related units and full tables are below.

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cup
gal
 

Step-by-step calculation

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    How to use the Cups to Gallons Converter

    1. Type a value in the Cups (US) 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.

    Cups (US) to gallons (US) formula

    gal = cup ÷ 16
    1. Take the value in US cups.
    2. Divide it by 16 (the number of US cups in one US gallon).

    Example: 1 cup ÷ 16 = 0.0625 gal.

    Reverse formula (US gallons to US cups): cup = gal × 16. Example: 0.046875 gal × 16 = 0.75 cup.

    The factor is a whole number (16), so this one is easy to do in your head or with long division.

    cup to gal conversion table (1–100)

    Click any row to load it into the converter.

    Cups (US) to gallons (US)

    Cups (US)Gallons (US)
    1 cup0.0625 gal
    2 cup0.125 gal
    3 cup0.1875 gal
    4 cup0.25 gal
    5 cup0.3125 gal
    6 cup0.375 gal
    7 cup0.4375 gal
    8 cup0.5 gal
    9 cup0.5625 gal
    10 cup0.625 gal
    11 cup0.6875 gal
    12 cup0.75 gal
    13 cup0.8125 gal
    14 cup0.875 gal
    15 cup0.9375 gal
    16 cup1 gal
    17 cup1.0625 gal
    18 cup1.125 gal
    19 cup1.1875 gal
    20 cup1.25 gal
    21 cup1.3125 gal
    22 cup1.375 gal
    23 cup1.4375 gal
    24 cup1.5 gal
    25 cup1.5625 gal
    26 cup1.625 gal
    27 cup1.6875 gal
    28 cup1.75 gal
    29 cup1.8125 gal
    30 cup1.875 gal
    31 cup1.9375 gal
    32 cup2 gal
    33 cup2.0625 gal
    34 cup2.125 gal
    35 cup2.1875 gal
    36 cup2.25 gal
    37 cup2.3125 gal
    38 cup2.375 gal
    39 cup2.4375 gal
    40 cup2.5 gal
    41 cup2.5625 gal
    42 cup2.625 gal
    43 cup2.6875 gal
    44 cup2.75 gal
    45 cup2.8125 gal
    46 cup2.875 gal
    47 cup2.9375 gal
    48 cup3 gal
    49 cup3.0625 gal
    50 cup3.125 gal
    51 cup3.1875 gal
    52 cup3.25 gal
    53 cup3.3125 gal
    54 cup3.375 gal
    55 cup3.4375 gal
    56 cup3.5 gal
    57 cup3.5625 gal
    58 cup3.625 gal
    59 cup3.6875 gal
    60 cup3.75 gal
    61 cup3.8125 gal
    62 cup3.875 gal
    63 cup3.9375 gal
    64 cup4 gal
    65 cup4.0625 gal
    66 cup4.125 gal
    67 cup4.1875 gal
    68 cup4.25 gal
    69 cup4.3125 gal
    70 cup4.375 gal
    71 cup4.4375 gal
    72 cup4.5 gal
    73 cup4.5625 gal
    74 cup4.625 gal
    75 cup4.6875 gal
    76 cup4.75 gal
    77 cup4.8125 gal
    78 cup4.875 gal
    79 cup4.9375 gal
    80 cup5 gal
    81 cup5.0625 gal
    82 cup5.125 gal
    83 cup5.1875 gal
    84 cup5.25 gal
    85 cup5.3125 gal
    86 cup5.375 gal
    87 cup5.4375 gal
    88 cup5.5 gal
    89 cup5.5625 gal
    90 cup5.625 gal
    91 cup5.6875 gal
    92 cup5.75 gal
    93 cup5.8125 gal
    94 cup5.875 gal
    95 cup5.9375 gal
    96 cup6 gal
    97 cup6.0625 gal
    98 cup6.125 gal
    99 cup6.1875 gal
    100 cup6.25 gal

    Gallons (US) to cups (US)

    Gallons (US)Cups (US)
    1 gal16 cup
    2 gal32 cup
    3 gal48 cup
    4 gal64 cup
    5 gal80 cup
    6 gal96 cup
    7 gal112 cup
    8 gal128 cup
    9 gal144 cup
    10 gal160 cup
    11 gal176 cup
    12 gal192 cup
    13 gal208 cup
    14 gal224 cup
    15 gal240 cup
    16 gal256 cup
    17 gal272 cup
    18 gal288 cup
    19 gal304 cup
    20 gal320 cup
    21 gal336 cup
    22 gal352 cup
    23 gal368 cup
    24 gal384 cup
    25 gal400 cup
    26 gal416 cup
    27 gal432 cup
    28 gal448 cup
    29 gal464 cup
    30 gal480 cup
    31 gal496 cup
    32 gal512 cup
    33 gal528 cup
    34 gal544 cup
    35 gal560 cup
    36 gal576 cup
    37 gal592 cup
    38 gal608 cup
    39 gal624 cup
    40 gal640 cup
    41 gal656 cup
    42 gal672 cup
    43 gal688 cup
    44 gal704 cup
    45 gal720 cup
    46 gal736 cup
    47 gal752 cup
    48 gal768 cup
    49 gal784 cup
    50 gal800 cup
    51 gal816 cup
    52 gal832 cup
    53 gal848 cup
    54 gal864 cup
    55 gal880 cup
    56 gal896 cup
    57 gal912 cup
    58 gal928 cup
    59 gal944 cup
    60 gal960 cup
    61 gal976 cup
    62 gal992 cup
    63 gal1,008 cup
    64 gal1,024 cup
    65 gal1,040 cup
    66 gal1,056 cup
    67 gal1,072 cup
    68 gal1,088 cup
    69 gal1,104 cup
    70 gal1,120 cup
    71 gal1,136 cup
    72 gal1,152 cup
    73 gal1,168 cup
    74 gal1,184 cup
    75 gal1,200 cup
    76 gal1,216 cup
    77 gal1,232 cup
    78 gal1,248 cup
    79 gal1,264 cup
    80 gal1,280 cup
    81 gal1,296 cup
    82 gal1,312 cup
    83 gal1,328 cup
    84 gal1,344 cup
    85 gal1,360 cup
    86 gal1,376 cup
    87 gal1,392 cup
    88 gal1,408 cup
    89 gal1,424 cup
    90 gal1,440 cup
    91 gal1,456 cup
    92 gal1,472 cup
    93 gal1,488 cup
    94 gal1,504 cup
    95 gal1,520 cup
    96 gal1,536 cup
    97 gal1,552 cup
    98 gal1,568 cup
    99 gal1,584 cup
    100 gal1,600 cup

    Common values

    Cups (US)Gallons (US)Example
    0.12 cup0.01 gal1/8 cup (2 tbsp)
    0.25 cup0.02 gal1/4 cup
    0.33 cup0.02 gal1/3 cup
    0.5 cup0.03 gal1/2 cup
    0.67 cup0.04 gal2/3 cup
    0.75 cup0.05 gal3/4 cup
    1 cup0.06 gal1 cup
    1.5 cup0.09 gal1 1/2 cups
    2 cup0.12 gal1 pint
    3 cup0.19 gal3 cups
    4 cup0.25 gal1 quart
    16 cup1 gal1 gallon

    About cups (US) and gallons (US)

    Cups (US) (cup). The US customary cup is 8 US fluid ounces, about 236.6 mL. Nutrition labels use a 240 mL 'legal cup', and many other countries use a 250 mL metric cup.

    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

    How many US gallons are in a US cup?

    One US cup equals 0.0625 US gallons. Looking at it the other way, one US gallon is 16 US cups. These are US customary measures.

    How do you convert US cups to US gallons?

    Divide the number of US cups by 16. For example, 1 cup ÷ 16 = 0.0625 gal.

    What is 0.75 US cups in US gallons?

    0.75 cup is 0.046875 gal (3/4 cup).

    How much is 4 US cups in US gallons?

    4 US cups equals 0.25 US gallons.

    How do I convert US gallons back to US cups?

    Multiply by 16, or press the ⇄ swap button above. For example, 0.046875 gal × 16 = 0.75 cup.

    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 big is a cup in milliliters?

    It depends on the country. A US customary cup is 236.6 mL, the 'legal' cup on US nutrition labels is 240 mL, and the metric cup used in Australia, Canada and many recipes is 250 mL. This converter uses the US customary cup.

    Are all the tools on FreeToolCabin tested for quality and accuracy?

    Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.

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