| 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 |
| US barrel (dry) | 4.1249616 bl (US) | 8.2499233 bl (US) | 12.3748849 bl (US) | 16.4998465 bl (US) | 20.6248082 bl (US) | 24.7497698 bl (US) | 28.8747314 bl (US) | 32.9996931 bl (US) | 37.1246547 bl (US) | 41.2496164 bl (US) | 45.3745780 bl (US) | 49.4995396 bl (US) | 53.6245013 bl (US) | 57.7494629 bl (US) | 61.8744245 bl (US) | 65.9993862 bl (US) | 70.1243478 bl (US) | 74.2493094 bl (US) | 78.3742711 bl (US) | 82.4992327 bl (US) | 86.6241943 bl (US) | 90.7491560 bl (US) | 94.8741176 bl (US) | 98.9990792 bl (US) | 103.1240409 bl (US) | 107.2490025 bl (US) | 111.3739642 bl (US) | 115.4989258 bl (US) | 119.6238874 bl (US) | 123.7488491 bl (US) | 127.8738107 bl (US) | 131.9987723 bl (US) | 136.1237340 bl (US) | 140.2486956 bl (US) | 144.3736572 bl (US) | 148.4986189 bl (US) | 152.6235805 bl (US) | 156.7485421 bl (US) | 160.8735038 bl (US) | 164.9984654 bl (US) | 169.1234271 bl (US) | 173.2483887 bl (US) | 177.3733503 bl (US) | 181.4983120 bl (US) | 185.6232736 bl (US) | 189.7482352 bl (US) | 193.8731969 bl (US) | 197.9981585 bl (US) | 202.1231201 bl (US) | 206.2480818 bl (US) | 210.3730434 bl (US) | 214.4980050 bl (US) | 218.6229667 bl (US) | 222.7479283 bl (US) | 226.8728899 bl (US) | 230.9978516 bl (US) | 235.1228132 bl (US) | 239.2477749 bl (US) | 243.3727365 bl (US) | 247.4976981 bl (US) | 251.6226598 bl (US) | 255.7476214 bl (US) | 259.8725830 bl (US) | 263.9975447 bl (US) | 268.1225063 bl (US) | 272.2474679 bl (US) | 276.3724296 bl (US) | 280.4973912 bl (US) | 284.6223528 bl (US) | 288.7473145 bl (US) | 292.8722761 bl (US) | 296.9972377 bl (US) | 301.1221994 bl (US) | 305.2471610 bl (US) | 309.3721227 bl (US) | 313.4970843 bl (US) | 317.6220459 bl (US) | 321.7470076 bl (US) | 325.8719692 bl (US) | 329.9969308 bl (US) | 334.1218925 bl (US) | 338.2468541 bl (US) | 342.3718157 bl (US) | 346.4967774 bl (US) | 350.6217390 bl (US) | 354.7467006 bl (US) | 358.8716623 bl (US) | 362.9966239 bl (US) | 367.1215856 bl (US) | 371.2465472 bl (US) | 375.3715088 bl (US) | 379.4964705 bl (US) | 383.6214321 bl (US) | 387.7463937 bl (US) | 391.8713554 bl (US) | 395.9963170 bl (US) | 400.1212786 bl (US) | 404.2462403 bl (US) | 408.3712019 bl (US) | 412.4961635 bl (US) |
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 | US barrels (dry) | pipes | US barrels (dry) |
|---|---|---|---|
| 1 | = 4.1249616354015 | 6 | = 24.749769812409 |
| 2 | = 8.2499232708029 | 7 | = 28.87473144781 |
| 3 | = 12.374884906204 | 8 | = 32.999693083212 |
| 4 | = 16.499846541606 | 9 | = 37.124654718613 |
| 5 | = 20.624808177007 | 10 | = 41.249616354015 |
A barrel is one of several units of volume applied in various contexts; there are dry barrels, fluid barrels (such as the UK beer barrel and US beer barrel), oil barrels and so on. For historical reasons the volumes of some barrel units are roughly double the volumes of others; volumes in common usage range from about 100 to 200 litres (22 to 44 imp gal; 26 to 53 US gal).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| US barrel (dry) | bl (US) | ≡ 105 qt (US) = 105/32 bu (US lvl) | = 0.115628198985075 m3 | Imperial/US |
| US barrels (dry) | pipes | US barrels (dry) | pipes |
|---|---|---|---|
| 1 | = 0.242426497114 | 6 | = 1.454558982684 |
| 2 | = 0.48485299422799 | 7 | = 1.696985479798 |
| 3 | = 0.72727949134199 | 8 | = 1.939411976912 |
| 4 | = 0.96970598845599 | 9 | = 2.181838474026 |
| 5 | = 1.21213248557 | 10 | = 2.42426497114 |
| pipes | US barrels (dry) |
|---|---|
| 1 | = 4.1249616 |
| 0.2424265 | = 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 …) |