US liquid gallon | 1 US gal lqd | 2 US gal lqd | 3 US gal lqd | 4 US gal lqd | 5 US gal lqd | 6 US gal lqd | 7 US gal lqd | 8 US gal lqd | 9 US gal lqd | 10 US gal lqd | 11 US gal lqd | 12 US gal lqd | 13 US gal lqd | 14 US gal lqd | 15 US gal lqd | 16 US gal lqd | 17 US gal lqd | 18 US gal lqd | 19 US gal lqd | 20 US gal lqd | 21 US gal lqd | 22 US gal lqd | 23 US gal lqd | 24 US gal lqd | 25 US gal lqd | 26 US gal lqd | 27 US gal lqd | 28 US gal lqd | 29 US gal lqd | 30 US gal lqd | 31 US gal lqd | 32 US gal lqd | 33 US gal lqd | 34 US gal lqd | 35 US gal lqd | 36 US gal lqd | 37 US gal lqd | 38 US gal lqd | 39 US gal lqd | 40 US gal lqd | 41 US gal lqd | 42 US gal lqd | 43 US gal lqd | 44 US gal lqd | 45 US gal lqd | 46 US gal lqd | 47 US gal lqd | 48 US gal lqd | 49 US gal lqd | 50 US gal lqd | 51 US gal lqd | 52 US gal lqd | 53 US gal lqd | 54 US gal lqd | 55 US gal lqd | 56 US gal lqd | 57 US gal lqd | 58 US gal lqd | 59 US gal lqd | 60 US gal lqd | 61 US gal lqd | 62 US gal lqd | 63 US gal lqd | 64 US gal lqd | 65 US gal lqd | 66 US gal lqd | 67 US gal lqd | 68 US gal lqd | 69 US gal lqd | 70 US gal lqd | 71 US gal lqd | 72 US gal lqd | 73 US gal lqd | 74 US gal lqd | 75 US gal lqd | 76 US gal lqd | 77 US gal lqd | 78 US gal lqd | 79 US gal lqd | 80 US gal lqd | 81 US gal lqd | 82 US gal lqd | 83 US gal lqd | 84 US gal lqd | 85 US gal lqd | 86 US gal lqd | 87 US gal lqd | 88 US gal lqd | 89 US gal lqd | 90 US gal lqd | 91 US gal lqd | 92 US gal lqd | 93 US gal lqd | 94 US gal lqd | 95 US gal lqd | 96 US gal lqd | 97 US gal lqd | 98 US gal lqd | 99 US gal lqd | 100 US gal lqd |
acre-inch | 3.6826599326599 × 10-5 ac in | 7.3653198653199 × 10-5 ac in | 0.0001105 ac in | 0.0001473 ac in | 0.0001841 ac in | 0.0002210 ac in | 0.0002578 ac in | 0.0002946 ac in | 0.0003314 ac in | 0.0003683 ac in | 0.0004051 ac in | 0.0004419 ac in | 0.0004787 ac in | 0.0005156 ac in | 0.0005524 ac in | 0.0005892 ac in | 0.0006261 ac in | 0.0006629 ac in | 0.0006997 ac in | 0.0007365 ac in | 0.0007734 ac in | 0.0008102 ac in | 0.0008470 ac in | 0.0008838 ac in | 0.0009207 ac in | 0.0009575 ac in | 0.0009943 ac in | 0.0010311 ac in | 0.0010680 ac in | 0.0011048 ac in | 0.0011416 ac in | 0.0011785 ac in | 0.0012153 ac in | 0.0012521 ac in | 0.0012889 ac in | 0.0013258 ac in | 0.0013626 ac in | 0.0013994 ac in | 0.0014362 ac in | 0.0014731 ac in | 0.0015099 ac in | 0.0015467 ac in | 0.0015835 ac in | 0.0016204 ac in | 0.0016572 ac in | 0.0016940 ac in | 0.0017309 ac in | 0.0017677 ac in | 0.0018045 ac in | 0.0018413 ac in | 0.0018782 ac in | 0.0019150 ac in | 0.0019518 ac in | 0.0019886 ac in | 0.0020255 ac in | 0.0020623 ac in | 0.0020991 ac in | 0.0021359 ac in | 0.0021728 ac in | 0.0022096 ac in | 0.0022464 ac in | 0.0022832 ac in | 0.0023201 ac in | 0.0023569 ac in | 0.0023937 ac in | 0.0024306 ac in | 0.0024674 ac in | 0.0025042 ac in | 0.0025410 ac in | 0.0025779 ac in | 0.0026147 ac in | 0.0026515 ac in | 0.0026883 ac in | 0.0027252 ac in | 0.0027620 ac in | 0.0027988 ac in | 0.0028356 ac in | 0.0028725 ac in | 0.0029093 ac in | 0.0029461 ac in | 0.0029830 ac in | 0.0030198 ac in | 0.0030566 ac in | 0.0030934 ac in | 0.0031303 ac in | 0.0031671 ac in | 0.0032039 ac in | 0.0032407 ac in | 0.0032776 ac in | 0.0033144 ac in | 0.0033512 ac in | 0.0033880 ac in | 0.0034249 ac in | 0.0034617 ac in | 0.0034985 ac in | 0.0035354 ac in | 0.0035722 ac in | 0.0036090 ac in | 0.0036458 ac in | 0.0036827 ac in |
The US gallon is legally defined as 231 cubic inches, which is exactly 3.785411784 liters. A US liquid gallon of water weighs about 8.34 pounds or 3.78 kilograms at 62 °F (17 °C), making it about 16.6% lighter than the imperial gallon. There are four quarts in a gallon, two pints in a quart and 16 US fluid ounces in a US pint, which makes the US fluid ounce equal to 1⁄128 of a US gallon. In order to overcome the effects of expansion and contraction with temperature when using a gallon to specify a quantity of material for purposes of trade, it is common to define the temperature at which the material will occupy the specified volume. For example, the volume of petroleum products and alcoholic beverages are both referenced to 60 °F (16 °C) in government regulations.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
US liquid gallon | US gal lqd | ≡ 231 cu in | ≡ 3.785411784×10−3 m3 | Imperial/US |
US liquid gallons | acre-inches | US liquid gallons | acre-inches |
---|---|---|---|
1 | = 3.6826599326599E-5 | 6 | = 0.0002209595959596 |
2 | = 7.3653198653199E-5 | 7 | = 0.0002577861952862 |
3 | = 0.0001104797979798 | 8 | = 0.00029461279461279 |
4 | = 0.0001473063973064 | 9 | = 0.00033143939393939 |
5 | = 0.000184132996633 | 10 | = 0.00036826599326599 |
The acre-inch is a unit of volume commonly used in the United States in reference to large-scale water resources, such as reservoirs, aqueducts, canals, sewer flow capacity, irrigation water, and river flows.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
acre-inch | ac in | ≡ 1 ac × 1 in | = 102.79015312896 m3 | Imperial/US |
acre-inches | US liquid gallons | acre-inches | US liquid gallons |
---|---|---|---|
1 | = 27154.285714286 | 6 | = 162925.71428571 |
2 | = 54308.571428571 | 7 | = 190080 |
3 | = 81462.857142857 | 8 | = 217234.28571429 |
4 | = 108617.14285714 | 9 | = 244388.57142857 |
5 | = 135771.42857143 | 10 | = 271542.85714286 |
US liquid gallons | acre-inches |
---|---|
1 | = 3.6826599326599 × 10-5 |
27,154.2857143 | = 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 …) |