| 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 |
| pipe | 2,586.1224490 pipe | 5,172.2448980 pipe | 7,758.3673469 pipe | 10,344.4897959 pipe | 12,930.6122449 pipe | 15,516.7346939 pipe | 18,102.8571429 pipe | 20,688.9795918 pipe | 23,275.1020408 pipe | 25,861.2244898 pipe | 28,447.3469388 pipe | 31,033.4693878 pipe | 33,619.5918367 pipe | 36,205.7142857 pipe | 38,791.8367347 pipe | 41,377.9591837 pipe | 43,964.0816327 pipe | 46,550.2040816 pipe | 49,136.3265306 pipe | 51,722.4489796 pipe | 54,308.5714286 pipe | 56,894.6938776 pipe | 59,480.8163265 pipe | 62,066.9387755 pipe | 64,653.0612245 pipe | 67,239.1836735 pipe | 69,825.3061224 pipe | 72,411.4285714 pipe | 74,997.5510204 pipe | 77,583.6734694 pipe | 80,169.7959184 pipe | 82,755.9183673 pipe | 85,342.0408163 pipe | 87,928.1632653 pipe | 90,514.2857143 pipe | 93,100.4081633 pipe | 95,686.5306122 pipe | 98,272.6530612 pipe | 100,858.7755102 pipe | 103,444.8979592 pipe | 106,031.0204082 pipe | 108,617.1428571 pipe | 111,203.2653061 pipe | 113,789.3877551 pipe | 116,375.5102041 pipe | 118,961.6326531 pipe | 121,547.7551020 pipe | 124,133.8775510 pipe | 126 720 pipe | 129,306.1224490 pipe | 131,892.2448980 pipe | 134,478.3673469 pipe | 137,064.4897959 pipe | 139,650.6122449 pipe | 142,236.7346939 pipe | 144,822.8571429 pipe | 147,408.9795918 pipe | 149,995.1020408 pipe | 152,581.2244898 pipe | 155,167.3469388 pipe | 157,753.4693878 pipe | 160,339.5918367 pipe | 162,925.7142857 pipe | 165,511.8367347 pipe | 168,097.9591837 pipe | 170,684.0816327 pipe | 173,270.2040816 pipe | 175,856.3265306 pipe | 178,442.4489796 pipe | 181,028.5714286 pipe | 183,614.6938776 pipe | 186,200.8163265 pipe | 188,786.9387755 pipe | 191,373.0612245 pipe | 193,959.1836735 pipe | 196,545.3061225 pipe | 199,131.4285714 pipe | 201,717.5510204 pipe | 204,303.6734694 pipe | 206,889.7959184 pipe | 209,475.9183674 pipe | 212,062.0408163 pipe | 214,648.1632653 pipe | 217,234.2857143 pipe | 219,820.4081633 pipe | 222,406.5306122 pipe | 224,992.6530612 pipe | 227,578.7755102 pipe | 230,164.8979592 pipe | 232,751.0204082 pipe | 235,337.1428571 pipe | 237,923.2653061 pipe | 240,509.3877551 pipe | 243,095.5102041 pipe | 245,681.6326531 pipe | 248,267.7551020 pipe | 250,853.8775510 pipe | 253 440 pipe | 256,026.1224490 pipe | 258,612.2448980 pipe |
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 | pipes | acre-feet | pipes |
|---|---|---|---|
| 1 | = 2586.1224489796 | 6 | = 15516.734693878 |
| 2 | = 5172.2448979592 | 7 | = 18102.857142857 |
| 3 | = 7758.3673469388 | 8 | = 20688.979591837 |
| 4 | = 10344.489795918 | 9 | = 23275.102040816 |
| 5 | = 12930.612244898 | 10 | = 25861.224489796 |
The pipe was a measure of liquid volume equalling two hogsheads. This equated to 108 imperial gallons (490 l) for ale or 126 imperial gallons (570 l) for wine (also known as a butt).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| pipe | ≡ 126 gal (wine) | = 0.476961884784 m3 | Imperial/US |
| pipes | acre-feet | pipes | acre-feet |
|---|---|---|---|
| 1 | = 0.00038667929292929 | 6 | = 0.0023200757575758 |
| 2 | = 0.00077335858585859 | 7 | = 0.0027067550505051 |
| 3 | = 0.0011600378787879 | 8 | = 0.0030934343434343 |
| 4 | = 0.0015467171717172 | 9 | = 0.0034801136363636 |
| 5 | = 0.0019333964646465 | 10 | = 0.0038667929292929 |
| acre-feet | pipes |
|---|---|
| 1 | = 2,586.1224490 |
| 0.0003867 | = 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 …) |