acre-foot | 1 ac ft | 2 ac ft | 3 ac ft | 4 ac ft | 5 ac ft | 6 ac ft | 7 ac ft | 8 ac ft | 9 ac ft | 10 ac ft | 11 ac ft | 12 ac ft | 13 ac ft | 14 ac ft | 15 ac ft | 16 ac ft | 17 ac ft | 18 ac ft | 19 ac ft | 20 ac ft | 21 ac ft | 22 ac ft | 23 ac ft | 24 ac ft | 25 ac ft | 26 ac ft | 27 ac ft | 28 ac ft | 29 ac ft | 30 ac ft | 31 ac ft | 32 ac ft | 33 ac ft | 34 ac ft | 35 ac ft | 36 ac ft | 37 ac ft | 38 ac ft | 39 ac ft | 40 ac ft | 41 ac ft | 42 ac ft | 43 ac ft | 44 ac ft | 45 ac ft | 46 ac ft | 47 ac ft | 48 ac ft | 49 ac ft | 50 ac ft | 51 ac ft | 52 ac ft | 53 ac ft | 54 ac ft | 55 ac ft | 56 ac ft | 57 ac ft | 58 ac ft | 59 ac ft | 60 ac ft | 61 ac ft | 62 ac ft | 63 ac ft | 64 ac ft | 65 ac ft | 66 ac ft | 67 ac ft | 68 ac ft | 69 ac ft | 70 ac ft | 71 ac ft | 72 ac ft | 73 ac ft | 74 ac ft | 75 ac ft | 76 ac ft | 77 ac ft | 78 ac ft | 79 ac ft | 80 ac ft | 81 ac ft | 82 ac ft | 83 ac ft | 84 ac ft | 85 ac ft | 86 ac ft | 87 ac ft | 88 ac ft | 89 ac ft | 90 ac ft | 91 ac ft | 92 ac ft | 93 ac ft | 94 ac ft | 95 ac ft | 96 ac ft | 97 ac ft | 98 ac ft | 99 ac ft | 100 ac ft |
US liquid gallon | 325,851.4285714 US gal lqd | 651,702.8571429 US gal lqd | 977,554.2857143 US gal lqd | 1,303,405.7142857 US gal lqd | 1,629,257.1428571 US gal lqd | 1,955,108.5714286 US gal lqd | 2 280 960 US gal lqd | 2,606,811.4285714 US gal lqd | 2,932,662.8571429 US gal lqd | 3,258,514.2857143 US gal lqd | 3,584,365.7142857 US gal lqd | 3,910,217.1428571 US gal lqd | 4,236,068.5714286 US gal lqd | 4 561 920 US gal lqd | 4,887,771.4285714 US gal lqd | 5,213,622.8571429 US gal lqd | 5,539,474.2857143 US gal lqd | 5,865,325.7142857 US gal lqd | 6,191,177.1428571 US gal lqd | 6,517,028.5714286 US gal lqd | 6 842 880 US gal lqd | 7,168,731.4285714 US gal lqd | 7,494,582.8571429 US gal lqd | 7,820,434.2857143 US gal lqd | 8,146,285.7142857 US gal lqd | 8,472,137.1428571 US gal lqd | 8,797,988.5714286 US gal lqd | 9 123 840 US gal lqd | 9,449,691.4285714 US gal lqd | 9,775,542.8571429 US gal lqd | 10,101,394.285714 US gal lqd | 10,427,245.714286 US gal lqd | 10,753,097.142857 US gal lqd | 11,078,948.571429 US gal lqd | 11 404 800 US gal lqd | 11,730,651.428571 US gal lqd | 12,056,502.857143 US gal lqd | 12,382,354.285714 US gal lqd | 12,708,205.714286 US gal lqd | 13,034,057.142857 US gal lqd | 13,359,908.571429 US gal lqd | 13 685 760 US gal lqd | 14,011,611.428571 US gal lqd | 14,337,462.857143 US gal lqd | 14,663,314.285714 US gal lqd | 14,989,165.714286 US gal lqd | 15,315,017.142857 US gal lqd | 15,640,868.571429 US gal lqd | 15 966 720 US gal lqd | 16,292,571.428571 US gal lqd | 16,618,422.857143 US gal lqd | 16,944,274.285714 US gal lqd | 17,270,125.714286 US gal lqd | 17,595,977.142857 US gal lqd | 17,921,828.571429 US gal lqd | 18 247 680 US gal lqd | 18,573,531.428571 US gal lqd | 18,899,382.857143 US gal lqd | 19,225,234.285714 US gal lqd | 19,551,085.714286 US gal lqd | 19,876,937.142857 US gal lqd | 20,202,788.571429 US gal lqd | 20 528 640 US gal lqd | 20,854,491.428571 US gal lqd | 21,180,342.857143 US gal lqd | 21,506,194.285714 US gal lqd | 21,832,045.714286 US gal lqd | 22,157,897.142857 US gal lqd | 22,483,748.571429 US gal lqd | 22 809 600 US gal lqd | 23,135,451.428571 US gal lqd | 23,461,302.857143 US gal lqd | 23,787,154.285714 US gal lqd | 24,113,005.714286 US gal lqd | 24,438,857.142857 US gal lqd | 24,764,708.571429 US gal lqd | 25 090 560 US gal lqd | 25,416,411.428571 US gal lqd | 25,742,262.857143 US gal lqd | 26,068,114.285714 US gal lqd | 26,393,965.714286 US gal lqd | 26,719,817.142857 US gal lqd | 27,045,668.571429 US gal lqd | 27 371 520 US gal lqd | 27,697,371.428571 US gal lqd | 28,023,222.857143 US gal lqd | 28,349,074.285714 US gal lqd | 28,674,925.714286 US gal lqd | 29,000,777.142857 US gal lqd | 29,326,628.571429 US gal lqd | 29 652 480 US gal lqd | 29,978,331.428571 US gal lqd | 30,304,182.857143 US gal lqd | 30,630,034.285714 US gal lqd | 30,955,885.714286 US gal lqd | 31,281,737.142857 US gal lqd | 31,607,588.571429 US gal lqd | 31 933 440 US gal lqd | 32,259,291.428571 US gal lqd | 32,585,142.857143 US gal lqd |
The acre-foot 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-foot | ac ft | ≡ 1 ac x 1 ft = 43560 cu ft | = 1233.48183754752 m3 | Imperial/US |
acre-feet | US liquid gallons | acre-feet | US liquid gallons |
---|---|---|---|
1 | = 325851.42857143 | 6 | = 1955108.5714286 |
2 | = 651702.85714286 | 7 | = 2280960 |
3 | = 977554.28571429 | 8 | = 2606811.4285714 |
4 | = 1303405.7142857 | 9 | = 2932662.8571429 |
5 | = 1629257.1428571 | 10 | = 3258514.2857143 |
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-feet | US liquid gallons | acre-feet |
---|---|---|---|
1 | = 3.0688832772166E-6 | 6 | = 1.84132996633E-5 |
2 | = 6.1377665544332E-6 | 7 | = 2.1482182940516E-5 |
3 | = 9.2066498316498E-6 | 8 | = 2.4551066217733E-5 |
4 | = 1.2275533108866E-5 | 9 | = 2.7619949494949E-5 |
5 | = 1.5344416386083E-5 | 10 | = 3.0688832772166E-5 |
acre-feet | US liquid gallons |
---|---|
1 | = 325,851.4285714 |
3.0688832772166 × 10-6 | = 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 …) |