| acre-inch | 1 ac in | 2 ac in | 3 ac in | 4 ac in | 5 ac in | 6 ac in | 7 ac in | 8 ac in | 9 ac in | 10 ac in | 11 ac in | 12 ac in | 13 ac in | 14 ac in | 15 ac in | 16 ac in | 17 ac in | 18 ac in | 19 ac in | 20 ac in | 21 ac in | 22 ac in | 23 ac in | 24 ac in | 25 ac in | 26 ac in | 27 ac in | 28 ac in | 29 ac in | 30 ac in | 31 ac in | 32 ac in | 33 ac in | 34 ac in | 35 ac in | 36 ac in | 37 ac in | 38 ac in | 39 ac in | 40 ac in | 41 ac in | 42 ac in | 43 ac in | 44 ac in | 45 ac in | 46 ac in | 47 ac in | 48 ac in | 49 ac in | 50 ac in | 51 ac in | 52 ac in | 53 ac in | 54 ac in | 55 ac in | 56 ac in | 57 ac in | 58 ac in | 59 ac in | 60 ac in | 61 ac in | 62 ac in | 63 ac in | 64 ac in | 65 ac in | 66 ac in | 67 ac in | 68 ac in | 69 ac in | 70 ac in | 71 ac in | 72 ac in | 73 ac in | 74 ac in | 75 ac in | 76 ac in | 77 ac in | 78 ac in | 79 ac in | 80 ac in | 81 ac in | 82 ac in | 83 ac in | 84 ac in | 85 ac in | 86 ac in | 87 ac in | 88 ac in | 89 ac in | 90 ac in | 91 ac in | 92 ac in | 93 ac in | 94 ac in | 95 ac in | 96 ac in | 97 ac in | 98 ac in | 99 ac in | 100 ac in |
| imperial gallon | 22,610.6727163 gal (imp) | 45,221.3454327 gal (imp) | 67,832.0181490 gal (imp) | 90,442.6908653 gal (imp) | 113,053.3635816 gal (imp) | 135,664.0362980 gal (imp) | 158,274.7090143 gal (imp) | 180,885.3817306 gal (imp) | 203,496.0544469 gal (imp) | 226,106.7271633 gal (imp) | 248,717.3998796 gal (imp) | 271,328.0725959 gal (imp) | 293,938.7453122 gal (imp) | 316,549.4180286 gal (imp) | 339,160.0907449 gal (imp) | 361,770.7634612 gal (imp) | 384,381.4361775 gal (imp) | 406,992.1088939 gal (imp) | 429,602.7816102 gal (imp) | 452,213.4543265 gal (imp) | 474,824.1270428 gal (imp) | 497,434.7997592 gal (imp) | 520,045.4724755 gal (imp) | 542,656.1451918 gal (imp) | 565,266.8179081 gal (imp) | 587,877.4906245 gal (imp) | 610,488.1633408 gal (imp) | 633,098.8360571 gal (imp) | 655,709.5087734 gal (imp) | 678,320.1814898 gal (imp) | 700,930.8542061 gal (imp) | 723,541.5269224 gal (imp) | 746,152.1996387 gal (imp) | 768,762.8723551 gal (imp) | 791,373.5450714 gal (imp) | 813,984.2177877 gal (imp) | 836,594.8905040 gal (imp) | 859,205.5632204 gal (imp) | 881,816.2359367 gal (imp) | 904,426.9086530 gal (imp) | 927,037.5813693 gal (imp) | 949,648.2540857 gal (imp) | 972,258.9268020 gal (imp) | 994,869.5995183 gal (imp) | 1,017,480.2722346 gal (imp) | 1,040,090.944951 gal (imp) | 1,062,701.6176673 gal (imp) | 1,085,312.2903836 gal (imp) | 1,107,922.9630999 gal (imp) | 1,130,533.6358163 gal (imp) | 1,153,144.3085326 gal (imp) | 1,175,754.9812489 gal (imp) | 1,198,365.6539652 gal (imp) | 1,220,976.3266816 gal (imp) | 1,243,586.9993979 gal (imp) | 1,266,197.6721142 gal (imp) | 1,288,808.3448306 gal (imp) | 1,311,419.0175469 gal (imp) | 1,334,029.6902632 gal (imp) | 1,356,640.3629795 gal (imp) | 1,379,251.0356959 gal (imp) | 1,401,861.7084122 gal (imp) | 1,424,472.3811285 gal (imp) | 1,447,083.0538448 gal (imp) | 1,469,693.7265612 gal (imp) | 1,492,304.3992775 gal (imp) | 1,514,915.0719938 gal (imp) | 1,537,525.7447101 gal (imp) | 1,560,136.4174265 gal (imp) | 1,582,747.0901428 gal (imp) | 1,605,357.7628591 gal (imp) | 1,627,968.4355754 gal (imp) | 1,650,579.1082918 gal (imp) | 1,673,189.7810081 gal (imp) | 1,695,800.4537244 gal (imp) | 1,718,411.1264407 gal (imp) | 1,741,021.7991571 gal (imp) | 1,763,632.4718734 gal (imp) | 1,786,243.1445897 gal (imp) | 1,808,853.817306 gal (imp) | 1,831,464.4900224 gal (imp) | 1,854,075.1627387 gal (imp) | 1,876,685.835455 gal (imp) | 1,899,296.5081713 gal (imp) | 1,921,907.1808877 gal (imp) | 1,944,517.853604 gal (imp) | 1,967,128.5263203 gal (imp) | 1,989,739.1990366 gal (imp) | 2,012,349.871753 gal (imp) | 2,034,960.5444693 gal (imp) | 2,057,571.2171856 gal (imp) | 2,080,181.8899019 gal (imp) | 2,102,792.5626183 gal (imp) | 2,125,403.2353346 gal (imp) | 2,148,013.9080509 gal (imp) | 2,170,624.5807672 gal (imp) | 2,193,235.2534836 gal (imp) | 2,215,845.9261999 gal (imp) | 2,238,456.5989162 gal (imp) | 2,261,067.2716325 gal (imp) |
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 | imperial gallons | acre-inches | imperial gallons |
|---|---|---|---|
| 1 | = 22610.672716325 | 6 | = 135664.03629795 |
| 2 | = 45221.345432651 | 7 | = 158274.70901428 |
| 3 | = 67832.018148976 | 8 | = 180885.3817306 |
| 4 | = 90442.690865302 | 9 | = 203496.05444693 |
| 5 | = 113053.36358163 | 10 | = 226106.72716325 |
The imperial (UK) gallon, now defined as exactly 4.54609 litres (about 277.42 cubic inches), is used in some Commonwealth countries and was originally based on the volume of 10 pounds (approximately 4.54 kg) of water at 62 °F (17 °C). The imperial fluid ounce is defined as 1⁄160 of an imperial gallon; there are four quarts in a gallon, two pints in a quart, and 20 Imperial fluid ounces in an imperial pint.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| imperial gallon | gal (imp) | ≡ 4.54609 L | ≡ 4.54609×10−3 m3 | Imperial/US |
| imperial gallons | acre-inches | imperial gallons | acre-inches |
|---|---|---|---|
| 1 | = 4.4226901717877E-5 | 6 | = 0.00026536141030726 |
| 2 | = 8.8453803435753E-5 | 7 | = 0.00030958831202514 |
| 3 | = 0.00013268070515363 | 8 | = 0.00035381521374301 |
| 4 | = 0.00017690760687151 | 9 | = 0.00039804211546089 |
| 5 | = 0.00022113450858938 | 10 | = 0.00044226901717877 |
| acre-inches | imperial gallons |
|---|---|
| 1 | = 22,610.6727163 |
| 4.4226901717877 × 10-5 | = 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 …) |