| pipe | 1 pipe | 2 pipe | 3 pipe | 4 pipe | 5 pipe | 6 pipe | 7 pipe | 8 pipe | 9 pipe | 10 pipe | 11 pipe | 12 pipe | 13 pipe | 14 pipe | 15 pipe | 16 pipe | 17 pipe | 18 pipe | 19 pipe | 20 pipe | 21 pipe | 22 pipe | 23 pipe | 24 pipe | 25 pipe | 26 pipe | 27 pipe | 28 pipe | 29 pipe | 30 pipe | 31 pipe | 32 pipe | 33 pipe | 34 pipe | 35 pipe | 36 pipe | 37 pipe | 38 pipe | 39 pipe | 40 pipe | 41 pipe | 42 pipe | 43 pipe | 44 pipe | 45 pipe | 46 pipe | 47 pipe | 48 pipe | 49 pipe | 50 pipe | 51 pipe | 52 pipe | 53 pipe | 54 pipe | 55 pipe | 56 pipe | 57 pipe | 58 pipe | 59 pipe | 60 pipe | 61 pipe | 62 pipe | 63 pipe | 64 pipe | 65 pipe | 66 pipe | 67 pipe | 68 pipe | 69 pipe | 70 pipe | 71 pipe | 72 pipe | 73 pipe | 74 pipe | 75 pipe | 76 pipe | 77 pipe | 78 pipe | 79 pipe | 80 pipe | 81 pipe | 82 pipe | 83 pipe | 84 pipe | 85 pipe | 86 pipe | 87 pipe | 88 pipe | 89 pipe | 90 pipe | 91 pipe | 92 pipe | 93 pipe | 94 pipe | 95 pipe | 96 pipe | 97 pipe | 98 pipe | 99 pipe | 100 pipe |
| acre-foot | 0.0003867 ac ft | 0.0007734 ac ft | 0.0011600 ac ft | 0.0015467 ac ft | 0.0019334 ac ft | 0.0023201 ac ft | 0.0027068 ac ft | 0.0030934 ac ft | 0.0034801 ac ft | 0.0038668 ac ft | 0.0042535 ac ft | 0.0046402 ac ft | 0.0050268 ac ft | 0.0054135 ac ft | 0.0058002 ac ft | 0.0061869 ac ft | 0.0065735 ac ft | 0.0069602 ac ft | 0.0073469 ac ft | 0.0077336 ac ft | 0.0081203 ac ft | 0.0085069 ac ft | 0.0088936 ac ft | 0.0092803 ac ft | 0.0096670 ac ft | 0.0100537 ac ft | 0.0104403 ac ft | 0.0108270 ac ft | 0.0112137 ac ft | 0.0116004 ac ft | 0.0119871 ac ft | 0.0123737 ac ft | 0.0127604 ac ft | 0.0131471 ac ft | 0.0135338 ac ft | 0.0139205 ac ft | 0.0143071 ac ft | 0.0146938 ac ft | 0.0150805 ac ft | 0.0154672 ac ft | 0.0158539 ac ft | 0.0162405 ac ft | 0.0166272 ac ft | 0.0170139 ac ft | 0.0174006 ac ft | 0.0177872 ac ft | 0.0181739 ac ft | 0.0185606 ac ft | 0.0189473 ac ft | 0.0193340 ac ft | 0.0197206 ac ft | 0.0201073 ac ft | 0.0204940 ac ft | 0.0208807 ac ft | 0.0212674 ac ft | 0.0216540 ac ft | 0.0220407 ac ft | 0.0224274 ac ft | 0.0228141 ac ft | 0.0232008 ac ft | 0.0235874 ac ft | 0.0239741 ac ft | 0.0243608 ac ft | 0.0247475 ac ft | 0.0251342 ac ft | 0.0255208 ac ft | 0.0259075 ac ft | 0.0262942 ac ft | 0.0266809 ac ft | 0.0270676 ac ft | 0.0274542 ac ft | 0.0278409 ac ft | 0.0282276 ac ft | 0.0286143 ac ft | 0.0290009 ac ft | 0.0293876 ac ft | 0.0297743 ac ft | 0.0301610 ac ft | 0.0305477 ac ft | 0.0309343 ac ft | 0.0313210 ac ft | 0.0317077 ac ft | 0.0320944 ac ft | 0.0324811 ac ft | 0.0328677 ac ft | 0.0332544 ac ft | 0.0336411 ac ft | 0.0340278 ac ft | 0.0344145 ac ft | 0.0348011 ac ft | 0.0351878 ac ft | 0.0355745 ac ft | 0.0359612 ac ft | 0.0363479 ac ft | 0.0367345 ac ft | 0.0371212 ac ft | 0.0375079 ac ft | 0.0378946 ac ft | 0.0382813 ac ft | 0.0386679 ac ft |
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 |
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 |
| pipes | acre-feet |
|---|---|
| 1 | = 0.0003867 |
| 2,586.1224490 | = 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 …) |