| butt | 1 butt | 2 butt | 3 butt | 4 butt | 5 butt | 6 butt | 7 butt | 8 butt | 9 butt | 10 butt | 11 butt | 12 butt | 13 butt | 14 butt | 15 butt | 16 butt | 17 butt | 18 butt | 19 butt | 20 butt | 21 butt | 22 butt | 23 butt | 24 butt | 25 butt | 26 butt | 27 butt | 28 butt | 29 butt | 30 butt | 31 butt | 32 butt | 33 butt | 34 butt | 35 butt | 36 butt | 37 butt | 38 butt | 39 butt | 40 butt | 41 butt | 42 butt | 43 butt | 44 butt | 45 butt | 46 butt | 47 butt | 48 butt | 49 butt | 50 butt | 51 butt | 52 butt | 53 butt | 54 butt | 55 butt | 56 butt | 57 butt | 58 butt | 59 butt | 60 butt | 61 butt | 62 butt | 63 butt | 64 butt | 65 butt | 66 butt | 67 butt | 68 butt | 69 butt | 70 butt | 71 butt | 72 butt | 73 butt | 74 butt | 75 butt | 76 butt | 77 butt | 78 butt | 79 butt | 80 butt | 81 butt | 82 butt | 83 butt | 84 butt | 85 butt | 86 butt | 87 butt | 88 butt | 89 butt | 90 butt | 91 butt | 92 butt | 93 butt | 94 butt | 95 butt | 96 butt | 97 butt | 98 butt | 99 butt | 100 butt |
| imperial barrel | 2.9143596 bl (imp) | 5.8287193 bl (imp) | 8.7430789 bl (imp) | 11.6574386 bl (imp) | 14.5717982 bl (imp) | 17.4861579 bl (imp) | 20.4005175 bl (imp) | 23.3148772 bl (imp) | 26.2292368 bl (imp) | 29.1435965 bl (imp) | 32.0579561 bl (imp) | 34.9723158 bl (imp) | 37.8866754 bl (imp) | 40.8010350 bl (imp) | 43.7153947 bl (imp) | 46.6297543 bl (imp) | 49.5441140 bl (imp) | 52.4584736 bl (imp) | 55.3728333 bl (imp) | 58.2871929 bl (imp) | 61.2015526 bl (imp) | 64.1159122 bl (imp) | 67.0302719 bl (imp) | 69.9446315 bl (imp) | 72.8589912 bl (imp) | 75.7733508 bl (imp) | 78.6877104 bl (imp) | 81.6020701 bl (imp) | 84.5164297 bl (imp) | 87.4307894 bl (imp) | 90.3451490 bl (imp) | 93.2595087 bl (imp) | 96.1738683 bl (imp) | 99.0882280 bl (imp) | 102.0025876 bl (imp) | 104.9169473 bl (imp) | 107.8313069 bl (imp) | 110.7456666 bl (imp) | 113.6600262 bl (imp) | 116.5743858 bl (imp) | 119.4887455 bl (imp) | 122.4031051 bl (imp) | 125.3174648 bl (imp) | 128.2318244 bl (imp) | 131.1461841 bl (imp) | 134.0605437 bl (imp) | 136.9749034 bl (imp) | 139.8892630 bl (imp) | 142.8036227 bl (imp) | 145.7179823 bl (imp) | 148.6323420 bl (imp) | 151.5467016 bl (imp) | 154.4610612 bl (imp) | 157.3754209 bl (imp) | 160.2897805 bl (imp) | 163.2041402 bl (imp) | 166.1184998 bl (imp) | 169.0328595 bl (imp) | 171.9472191 bl (imp) | 174.8615788 bl (imp) | 177.7759384 bl (imp) | 180.6902981 bl (imp) | 183.6046577 bl (imp) | 186.5190174 bl (imp) | 189.4333770 bl (imp) | 192.3477366 bl (imp) | 195.2620963 bl (imp) | 198.1764559 bl (imp) | 201.0908156 bl (imp) | 204.0051752 bl (imp) | 206.9195349 bl (imp) | 209.8338945 bl (imp) | 212.7482542 bl (imp) | 215.6626138 bl (imp) | 218.5769735 bl (imp) | 221.4913331 bl (imp) | 224.4056928 bl (imp) | 227.3200524 bl (imp) | 230.2344120 bl (imp) | 233.1487717 bl (imp) | 236.0631313 bl (imp) | 238.9774910 bl (imp) | 241.8918506 bl (imp) | 244.8062103 bl (imp) | 247.7205699 bl (imp) | 250.6349296 bl (imp) | 253.5492892 bl (imp) | 256.4636489 bl (imp) | 259.3780085 bl (imp) | 262.2923682 bl (imp) | 265.2067278 bl (imp) | 268.1210875 bl (imp) | 271.0354471 bl (imp) | 273.9498067 bl (imp) | 276.8641664 bl (imp) | 279.7785260 bl (imp) | 282.6928857 bl (imp) | 285.6072453 bl (imp) | 288.5216050 bl (imp) | 291.4359646 bl (imp) |
The butt 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 pipe).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| butt | ≡ 126 gal (wine) | = 0.476961884784 m3 | Imperial/US |
| butts | imperial barrels | butts | imperial barrels |
|---|---|---|---|
| 1 | = 2.9143596462015 | 6 | = 17.486157877209 |
| 2 | = 5.8287192924029 | 7 | = 20.40051752341 |
| 3 | = 8.7430789386044 | 8 | = 23.314877169612 |
| 4 | = 11.657438584806 | 9 | = 26.229236815813 |
| 5 | = 14.571798231007 | 10 | = 29.143596462015 |
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). In many connections the term "drum" is used almost interchangeably with "barrel".
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| imperial barrel | bl (imp) | ≡ 36 gal (imp) | = 0.16365924 m3 | Imperial/US |
| imperial barrels | butts | imperial barrels | butts |
|---|---|---|---|
| 1 | = 0.34312855014424 | 6 | = 2.0587713008655 |
| 2 | = 0.68625710028849 | 7 | = 2.4018998510097 |
| 3 | = 1.0293856504327 | 8 | = 2.745028401154 |
| 4 | = 1.372514200577 | 9 | = 3.0881569512982 |
| 5 | = 1.7156427507212 | 10 | = 3.4312855014424 |
| butts | imperial barrels |
|---|---|
| 1 | = 2.9143596 |
| 0.3431286 | = 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 …) |