Quick Find Conversion

US liquid gallons

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  1128 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.

Conversion table

US legal cuppipedrop (imperial)ponyimperial minimfluid scruplepetaliterhectoliter
1 0.0005032 2,432.6839108 10.8204873 4,054.4731847 202.7236592 2.4 × 10-16 0.0024
1,987.3411866 1 4,834,572.929895 21 504 8,057,621.5498223 402,881.0774932 4.76961884784 × 10-13 4.7696188
0.0004111 2.0684350293206 × 10-7 1 0.0044480 1.6666667 0.0833333 9.86564670138 × 10-20 9.86564670138 × 10-7
0.0924173 4.6502976190476 × 10-5 224.8220299 1 374.7033831 18.7351692 2.2180147171875 × 10-17 0.0002218
0.0002466 1.2410610175928 × 10-7 0.6000000 0.0026688 1 0.0500000 5.91938802083 × 10-20 5.91938802083 × 10-7
0.0049328 2.482122035173 × 10-6 12.0000000 0.0533756 20.0000000 1 1.18387760416 × 10-18 1.18387760416 × 10-5
4.1666666666667 × 1015 2 096 603 590 144 1.0136182961631 × 1019 4.5085363602457 × 1016 1.6893638269379 × 1019 8.4468191347325 × 1017 1 10 000 000 000 000
416.6666667 0.2096604 1,013,618.2961631 4,508.5363602 1,689,363.8269379 84,468.1913473 1.0 × 10-13 1