| US gallon | 1 gal (US) | 2 gal (US) | 3 gal (US) | 4 gal (US) | 5 gal (US) | 6 gal (US) | 7 gal (US) | 8 gal (US) | 9 gal (US) | 10 gal (US) | 11 gal (US) | 12 gal (US) | 13 gal (US) | 14 gal (US) | 15 gal (US) | 16 gal (US) | 17 gal (US) | 18 gal (US) | 19 gal (US) | 20 gal (US) | 21 gal (US) | 22 gal (US) | 23 gal (US) | 24 gal (US) | 25 gal (US) | 26 gal (US) | 27 gal (US) | 28 gal (US) | 29 gal (US) | 30 gal (US) | 31 gal (US) | 32 gal (US) | 33 gal (US) | 34 gal (US) | 35 gal (US) | 36 gal (US) | 37 gal (US) | 38 gal (US) | 39 gal (US) | 40 gal (US) | 41 gal (US) | 42 gal (US) | 43 gal (US) | 44 gal (US) | 45 gal (US) | 46 gal (US) | 47 gal (US) | 48 gal (US) | 49 gal (US) | 50 gal (US) | 51 gal (US) | 52 gal (US) | 53 gal (US) | 54 gal (US) | 55 gal (US) | 56 gal (US) | 57 gal (US) | 58 gal (US) | 59 gal (US) | 60 gal (US) | 61 gal (US) | 62 gal (US) | 63 gal (US) | 64 gal (US) | 65 gal (US) | 66 gal (US) | 67 gal (US) | 68 gal (US) | 69 gal (US) | 70 gal (US) | 71 gal (US) | 72 gal (US) | 73 gal (US) | 74 gal (US) | 75 gal (US) | 76 gal (US) | 77 gal (US) | 78 gal (US) | 79 gal (US) | 80 gal (US) | 81 gal (US) | 82 gal (US) | 83 gal (US) | 84 gal (US) | 85 gal (US) | 86 gal (US) | 87 gal (US) | 88 gal (US) | 89 gal (US) | 90 gal (US) | 91 gal (US) | 92 gal (US) | 93 gal (US) | 94 gal (US) | 95 gal (US) | 96 gal (US) | 97 gal (US) | 98 gal (US) | 99 gal (US) | 100 gal (US) |
| US legal cup | 15.7725491 c (US Legal) | 31.5450982 c (US Legal) | 47.3176473 c (US Legal) | 63.0901963 c (US Legal) | 78.8627454 c (US Legal) | 94.6352945 c (US Legal) | 110.4078436 c (US Legal) | 126.1803927 c (US Legal) | 141.9529418 c (US Legal) | 157.7254908 c (US Legal) | 173.4980399 c (US Legal) | 189.270589 c (US Legal) | 205.0431381 c (US Legal) | 220.8156872 c (US Legal) | 236.5882363 c (US Legal) | 252.3607853 c (US Legal) | 268.1333344 c (US Legal) | 283.9058835 c (US Legal) | 299.6784326 c (US Legal) | 315.4509817 c (US Legal) | 331.2235308 c (US Legal) | 346.9960798 c (US Legal) | 362.7686289 c (US Legal) | 378.541178 c (US Legal) | 394.3137271 c (US Legal) | 410.0862762 c (US Legal) | 425.8588253 c (US Legal) | 441.6313743 c (US Legal) | 457.4039234 c (US Legal) | 473.1764725 c (US Legal) | 488.9490216 c (US Legal) | 504.7215707 c (US Legal) | 520.4941198 c (US Legal) | 536.2666688 c (US Legal) | 552.0392179 c (US Legal) | 567.811767 c (US Legal) | 583.5843161 c (US Legal) | 599.3568652 c (US Legal) | 615.1294143 c (US Legal) | 630.9019633 c (US Legal) | 646.6745124 c (US Legal) | 662.4470615 c (US Legal) | 678.2196106 c (US Legal) | 693.9921597 c (US Legal) | 709.7647088 c (US Legal) | 725.5372578 c (US Legal) | 741.3098069 c (US Legal) | 757.082356 c (US Legal) | 772.8549051 c (US Legal) | 788.6274542 c (US Legal) | 804.4000033 c (US Legal) | 820.1725523 c (US Legal) | 835.9451014 c (US Legal) | 851.7176505 c (US Legal) | 867.4901996 c (US Legal) | 883.2627487 c (US Legal) | 899.0352978 c (US Legal) | 914.8078468 c (US Legal) | 930.5803959 c (US Legal) | 946.352945 c (US Legal) | 962.1254941 c (US Legal) | 977.8980432 c (US Legal) | 993.6705923 c (US Legal) | 1,009.4431413 c (US Legal) | 1,025.2156904 c (US Legal) | 1,040.9882395 c (US Legal) | 1,056.7607886 c (US Legal) | 1,072.5333377 c (US Legal) | 1,088.3058868 c (US Legal) | 1,104.0784358 c (US Legal) | 1,119.8509849 c (US Legal) | 1,135.623534 c (US Legal) | 1,151.3960831 c (US Legal) | 1,167.1686322 c (US Legal) | 1,182.9411813 c (US Legal) | 1,198.7137303 c (US Legal) | 1,214.4862794 c (US Legal) | 1,230.2588285 c (US Legal) | 1,246.0313776 c (US Legal) | 1,261.8039267 c (US Legal) | 1,277.5764758 c (US Legal) | 1,293.3490248 c (US Legal) | 1,309.1215739 c (US Legal) | 1,324.894123 c (US Legal) | 1,340.6666721 c (US Legal) | 1,356.4392212 c (US Legal) | 1,372.2117703 c (US Legal) | 1,387.9843193 c (US Legal) | 1,403.7568684 c (US Legal) | 1,419.5294175 c (US Legal) | 1,435.3019666 c (US Legal) | 1,451.0745157 c (US Legal) | 1,466.8470648 c (US Legal) | 1,482.6196138 c (US Legal) | 1,498.3921629 c (US Legal) | 1,514.164712 c (US Legal) | 1,529.9372611 c (US Legal) | 1,545.7098102 c (US Legal) | 1,561.4823593 c (US Legal) | 1,577.2549083 c (US Legal) |
This dry measure is one-eighth of a US Winchester bushel of 2150.42 cubic inches; it is therefore equal to exactly 268.8025 cubic inches or about 4.405 L. The US dry gallon is not used in commerce, and is not listed in the relevant statute, which jumps from the dry quart to the peck.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| US gallon | gal (US) | ≡ 1⁄8 bu (US lvl) | = 4.40488377086×10−3 m3 | Imperial/US |
| US gallons | US legal cups | US gallons | US legal cups |
|---|---|---|---|
| 1 | = 15.772549083333 | 6 | = 94.6352945 |
| 2 | = 31.545098166667 | 7 | = 110.40784358333 |
| 3 | = 47.31764725 | 8 | = 126.18039266667 |
| 4 | = 63.090196333333 | 9 | = 141.95294175 |
| 5 | = 78.862745416667 | 10 | = 157.72549083333 |
The cup currently used in the United States for nutrition labelling is defined in United States law as 240 ml.
| 1 U.S. "legal" cup | = | 240 | millilitres |
| = | 16 | international tablespoons | |
| = | 12 | Australian tablespoons | |
| ≈ | 8.12 | U.S. customary fluid ounces | |
| ≈ | 8.45 | imperial fluid ounces |
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| US legal cup | c (US Legal) | ≡ 240 mL | = 2.4×10−4 m3 | Imperial/US |
| US legal cups | US gallons | US legal cups | US gallons |
|---|---|---|---|
| 1 | = 0.063401292632951 | 6 | = 0.38040775579771 |
| 2 | = 0.1268025852659 | 7 | = 0.44380904843066 |
| 3 | = 0.19020387789885 | 8 | = 0.50721034106361 |
| 4 | = 0.2536051705318 | 9 | = 0.57061163369656 |
| 5 | = 0.31700646316476 | 10 | = 0.63401292632951 |
| US gallons | US legal cups |
|---|---|
| 1 | = 15.7725491 |
| 0.0634013 | = 1 |
| Symbol | Definition |
|---|---|
| ≡ | exactly equal |
| ≈ | approximately equal to |
| = | equal to |
| digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |