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 |
attoliter | 3.785411784 × 1018 aL | 7.570823568 × 1018 aL | 1.1356235352 × 1019 aL | 1.5141647136 × 1019 aL | 1.892705892 × 1019 aL | 2.2712470704 × 1019 aL | 2.6497882488 × 1019 aL | 3.0283294272 × 1019 aL | 3.4068706056 × 1019 aL | 3.785411784 × 1019 aL | 4.1639529624 × 1019 aL | 4.5424941408 × 1019 aL | 4.9210353192 × 1019 aL | 5.2995764976 × 1019 aL | 5.678117676 × 1019 aL | 6.0566588544 × 1019 aL | 6.4352000328 × 1019 aL | 6.8137412112 × 1019 aL | 7.1922823896 × 1019 aL | 7.570823568 × 1019 aL | 7.9493647464 × 1019 aL | 8.3279059248 × 1019 aL | 8.7064471032 × 1019 aL | 9.0849882816 × 1019 aL | 9.46352946 × 1019 aL | 9.8420706384 × 1019 aL | 1.02206118168 × 1020 aL | 1.05991529952 × 1020 aL | 1.09776941736 × 1020 aL | 1.1356235352 × 1020 aL | 1.17347765304 × 1020 aL | 1.21133177088 × 1020 aL | 1.24918588872 × 1020 aL | 1.28704000656 × 1020 aL | 1.3248941244 × 1020 aL | 1.36274824224 × 1020 aL | 1.40060236008 × 1020 aL | 1.43845647792 × 1020 aL | 1.47631059576 × 1020 aL | 1.5141647136 × 1020 aL | 1.55201883144 × 1020 aL | 1.58987294928 × 1020 aL | 1.62772706712 × 1020 aL | 1.66558118496 × 1020 aL | 1.7034353028 × 1020 aL | 1.74128942064 × 1020 aL | 1.77914353848 × 1020 aL | 1.81699765632 × 1020 aL | 1.85485177416 × 1020 aL | 1.892705892 × 1020 aL | 1.93056000984 × 1020 aL | 1.96841412768 × 1020 aL | 2.00626824552 × 1020 aL | 2.04412236336 × 1020 aL | 2.0819764812 × 1020 aL | 2.11983059904 × 1020 aL | 2.15768471688 × 1020 aL | 2.19553883472 × 1020 aL | 2.23339295256 × 1020 aL | 2.2712470704 × 1020 aL | 2.30910118824 × 1020 aL | 2.34695530608 × 1020 aL | 2.38480942392 × 1020 aL | 2.42266354176 × 1020 aL | 2.4605176596 × 1020 aL | 2.49837177744 × 1020 aL | 2.53622589528 × 1020 aL | 2.57408001312 × 1020 aL | 2.61193413096 × 1020 aL | 2.6497882488 × 1020 aL | 2.68764236664 × 1020 aL | 2.72549648448 × 1020 aL | 2.76335060232 × 1020 aL | 2.80120472016 × 1020 aL | 2.839058838 × 1020 aL | 2.87691295584 × 1020 aL | 2.91476707368 × 1020 aL | 2.95262119152 × 1020 aL | 2.99047530936 × 1020 aL | 3.0283294272 × 1020 aL | 3.06618354504 × 1020 aL | 3.10403766288 × 1020 aL | 3.14189178072 × 1020 aL | 3.17974589856 × 1020 aL | 3.2176000164 × 1020 aL | 3.25545413424 × 1020 aL | 3.29330825208 × 1020 aL | 3.33116236992 × 1020 aL | 3.36901648776 × 1020 aL | 3.4068706056 × 1020 aL | 3.44472472344 × 1020 aL | 3.48257884128 × 1020 aL | 3.52043295912 × 1020 aL | 3.55828707696 × 1020 aL | 3.5961411948 × 1020 aL | 3.63399531264 × 1020 aL | 3.67184943048 × 1020 aL | 3.70970354832 × 1020 aL | 3.74755766616 × 1020 aL | 3.785411784 × 1020 aL |
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 | attoliters | US liquid gallons | attoliters |
---|---|---|---|
1 | ≡ 3.785411784E+18 | 6 | ≡ 2.2712470704E+19 |
2 | ≡ 7.570823568E+18 | 7 | ≡ 2.6497882488E+19 |
3 | ≡ 1.1356235352E+19 | 8 | ≡ 3.0283294272E+19 |
4 | ≡ 1.5141647136E+19 | 9 | ≡ 3.4068706056E+19 |
5 | ≡ 1.892705892E+19 | 10 | ≡ 3.785411784E+19 |
The attoliter or attolitre is a common metric unit of volume. It is equal to 10-21 cubic meters. Plural name is attoliters.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
attoliter | aL | ≡ 106 nm3 | ≡ 10-21 m3 | Metric system SI |
attoliters | US liquid gallons | attoliters | US liquid gallons |
---|---|---|---|
1 | ≡ 2.6417205235815E-19 | 6 | ≡ 1.5850323141489E-18 |
2 | ≡ 5.283441047163E-19 | 7 | ≡ 1.849204366507E-18 |
3 | ≡ 7.9251615707445E-19 | 8 | ≡ 2.1133764188652E-18 |
4 | ≡ 1.0566882094326E-18 | 9 | ≡ 2.3775484712233E-18 |
5 | ≡ 1.3208602617907E-18 | 10 | ≡ 2.6417205235815E-18 |
US liquid gallons | attoliters |
---|---|
1 | ≡ 3.785411784 × 1018 |
2.6417205235815 × 10-19 | ≡ 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 …) |