| 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 peck | 140,012.9835102 pk (US) | 280,025.9670204 pk (US) | 420,038.9505306 pk (US) | 560,051.9340408 pk (US) | 700,064.9175510 pk (US) | 840,077.9010612 pk (US) | 980,090.8845714 pk (US) | 1,120,103.8680816 pk (US) | 1,260,116.8515918 pk (US) | 1,400,129.835102 pk (US) | 1,540,142.8186122 pk (US) | 1,680,155.8021224 pk (US) | 1,820,168.7856326 pk (US) | 1,960,181.7691428 pk (US) | 2,100,194.752653 pk (US) | 2,240,207.7361632 pk (US) | 2,380,220.7196734 pk (US) | 2,520,233.7031836 pk (US) | 2,660,246.6866938 pk (US) | 2,800,259.670204 pk (US) | 2,940,272.6537142 pk (US) | 3,080,285.6372244 pk (US) | 3,220,298.6207346 pk (US) | 3,360,311.6042448 pk (US) | 3,500,324.5877549 pk (US) | 3,640,337.5712651 pk (US) | 3,780,350.5547753 pk (US) | 3,920,363.5382855 pk (US) | 4,060,376.5217957 pk (US) | 4,200,389.5053059 pk (US) | 4,340,402.4888161 pk (US) | 4,480,415.4723263 pk (US) | 4,620,428.4558365 pk (US) | 4,760,441.4393467 pk (US) | 4,900,454.4228569 pk (US) | 5,040,467.4063671 pk (US) | 5,180,480.3898773 pk (US) | 5,320,493.3733875 pk (US) | 5,460,506.3568977 pk (US) | 5,600,519.3404079 pk (US) | 5,740,532.3239181 pk (US) | 5,880,545.3074283 pk (US) | 6,020,558.2909385 pk (US) | 6,160,571.2744487 pk (US) | 6,300,584.2579589 pk (US) | 6,440,597.2414691 pk (US) | 6,580,610.2249793 pk (US) | 6,720,623.2084895 pk (US) | 6,860,636.1919997 pk (US) | 7,000,649.1755099 pk (US) | 7,140,662.1590201 pk (US) | 7,280,675.1425303 pk (US) | 7,420,688.1260405 pk (US) | 7,560,701.1095507 pk (US) | 7,700,714.0930609 pk (US) | 7,840,727.0765711 pk (US) | 7,980,740.0600813 pk (US) | 8,120,753.0435915 pk (US) | 8,260,766.0271017 pk (US) | 8,400,779.0106119 pk (US) | 8,540,791.9941221 pk (US) | 8,680,804.9776323 pk (US) | 8,820,817.9611425 pk (US) | 8,960,830.9446527 pk (US) | 9,100,843.9281629 pk (US) | 9,240,856.9116731 pk (US) | 9,380,869.8951833 pk (US) | 9,520,882.8786935 pk (US) | 9,660,895.8622037 pk (US) | 9,800,908.8457139 pk (US) | 9,940,921.8292241 pk (US) | 10,080,934.812734 pk (US) | 10,220,947.796244 pk (US) | 10,360,960.779755 pk (US) | 10,500,973.763265 pk (US) | 10,640,986.746775 pk (US) | 10,780,999.730285 pk (US) | 10,921,012.713795 pk (US) | 11,061,025.697306 pk (US) | 11,201,038.680816 pk (US) | 11,341,051.664326 pk (US) | 11,481,064.647836 pk (US) | 11,621,077.631346 pk (US) | 11,761,090.614857 pk (US) | 11,901,103.598367 pk (US) | 12,041,116.581877 pk (US) | 12,181,129.565387 pk (US) | 12,321,142.548897 pk (US) | 12,461,155.532408 pk (US) | 12,601,168.515918 pk (US) | 12,741,181.499428 pk (US) | 12,881,194.482938 pk (US) | 13,021,207.466448 pk (US) | 13,161,220.449959 pk (US) | 13,301,233.433469 pk (US) | 13,441,246.416979 pk (US) | 13,581,259.400489 pk (US) | 13,721,272.383999 pk (US) | 13,861,285.36751 pk (US) | 14,001,298.35102 pk (US) |
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 pecks | acre-feet | US pecks |
|---|---|---|---|
| 1 | = 140012.9835102 | 6 | = 840077.90106119 |
| 2 | = 280025.9670204 | 7 | = 980090.88457139 |
| 3 | = 420038.95053059 | 8 | = 1120103.8680816 |
| 4 | = 560051.93404079 | 9 | = 1260116.8515918 |
| 5 | = 700064.91755099 | 10 | = 1400129.835102 |
A peck is an imperial and United States customary unit of dry volume, equivalent to 2 gallons or 8 dry quarts or 16 dry pints (9.09 (UK) or 8.81 (US) liters). Two pecks make a kenning (obsolete), and four pecks make a bushel. Although the peck is no longer widely used, some produce, such as apples, is still often sold by the peck.
| 1 US peck | = | 1⁄4 of a US bushel |
| = | 2 US dry gallons | |
| = | 8 US dry quarts | |
| = | 16 US dry pints | |
| = | 537.605 cubic inches | |
| = | 8.80976754172 litres | |
| ≈ | 1.93788 imperial gallons | |
| ≈ | 310.060 imperial fluid ounces |
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| US peck | pk (US) | ≡ 1⁄4 US lvl bu | = 8.80976754172×10−3 m3 | Imperial/US |
| US pecks | acre-feet | US pecks | acre-feet |
|---|---|---|---|
| 1 | = 7.1421947802945E-6 | 6 | = 4.2853168681767E-5 |
| 2 | = 1.4284389560589E-5 | 7 | = 4.9995363462062E-5 |
| 3 | = 2.1426584340884E-5 | 8 | = 5.7137558242356E-5 |
| 4 | = 2.8568779121178E-5 | 9 | = 6.4279753022651E-5 |
| 5 | = 3.5710973901473E-5 | 10 | = 7.1421947802945E-5 |
| acre-feet | US pecks |
|---|---|
| 1 | = 140,012.9835102 |
| 7.1421947802945 × 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 …) |