| imperial barrel | 1 bl (imp) | 2 bl (imp) | 3 bl (imp) | 4 bl (imp) | 5 bl (imp) | 6 bl (imp) | 7 bl (imp) | 8 bl (imp) | 9 bl (imp) | 10 bl (imp) | 11 bl (imp) | 12 bl (imp) | 13 bl (imp) | 14 bl (imp) | 15 bl (imp) | 16 bl (imp) | 17 bl (imp) | 18 bl (imp) | 19 bl (imp) | 20 bl (imp) | 21 bl (imp) | 22 bl (imp) | 23 bl (imp) | 24 bl (imp) | 25 bl (imp) | 26 bl (imp) | 27 bl (imp) | 28 bl (imp) | 29 bl (imp) | 30 bl (imp) | 31 bl (imp) | 32 bl (imp) | 33 bl (imp) | 34 bl (imp) | 35 bl (imp) | 36 bl (imp) | 37 bl (imp) | 38 bl (imp) | 39 bl (imp) | 40 bl (imp) | 41 bl (imp) | 42 bl (imp) | 43 bl (imp) | 44 bl (imp) | 45 bl (imp) | 46 bl (imp) | 47 bl (imp) | 48 bl (imp) | 49 bl (imp) | 50 bl (imp) | 51 bl (imp) | 52 bl (imp) | 53 bl (imp) | 54 bl (imp) | 55 bl (imp) | 56 bl (imp) | 57 bl (imp) | 58 bl (imp) | 59 bl (imp) | 60 bl (imp) | 61 bl (imp) | 62 bl (imp) | 63 bl (imp) | 64 bl (imp) | 65 bl (imp) | 66 bl (imp) | 67 bl (imp) | 68 bl (imp) | 69 bl (imp) | 70 bl (imp) | 71 bl (imp) | 72 bl (imp) | 73 bl (imp) | 74 bl (imp) | 75 bl (imp) | 76 bl (imp) | 77 bl (imp) | 78 bl (imp) | 79 bl (imp) | 80 bl (imp) | 81 bl (imp) | 82 bl (imp) | 83 bl (imp) | 84 bl (imp) | 85 bl (imp) | 86 bl (imp) | 87 bl (imp) | 88 bl (imp) | 89 bl (imp) | 90 bl (imp) | 91 bl (imp) | 92 bl (imp) | 93 bl (imp) | 94 bl (imp) | 95 bl (imp) | 96 bl (imp) | 97 bl (imp) | 98 bl (imp) | 99 bl (imp) | 100 bl (imp) |
| fluid scruple | 138,240.0000008 fl s | 276,480.0000016 fl s | 414,720.0000023 fl s | 552,960.0000031 fl s | 691,200.0000039 fl s | 829,440.0000047 fl s | 967,680.0000055 fl s | 1,105,920.0000062 fl s | 1,244,160.000007 fl s | 1,382,400.0000078 fl s | 1,520,640.0000086 fl s | 1,658,880.0000093 fl s | 1,797,120.0000101 fl s | 1,935,360.0000109 fl s | 2,073,600.0000117 fl s | 2,211,840.0000125 fl s | 2,350,080.0000132 fl s | 2,488,320.000014 fl s | 2,626,560.0000148 fl s | 2,764,800.0000156 fl s | 2,903,040.0000163 fl s | 3,041,280.0000171 fl s | 3,179,520.0000179 fl s | 3,317,760.0000187 fl s | 3,456,000.0000195 fl s | 3,594,240.0000202 fl s | 3,732,480.000021 fl s | 3,870,720.0000218 fl s | 4,008,960.0000226 fl s | 4,147,200.0000234 fl s | 4,285,440.0000241 fl s | 4,423,680.0000249 fl s | 4,561,920.0000257 fl s | 4,700,160.0000265 fl s | 4,838,400.0000272 fl s | 4,976,640.000028 fl s | 5,114,880.0000288 fl s | 5,253,120.0000296 fl s | 5,391,360.0000304 fl s | 5,529,600.0000311 fl s | 5,667,840.0000319 fl s | 5,806,080.0000327 fl s | 5,944,320.0000335 fl s | 6,082,560.0000343 fl s | 6,220,800.000035 fl s | 6,359,040.0000358 fl s | 6,497,280.0000366 fl s | 6,635,520.0000374 fl s | 6,773,760.0000381 fl s | 6,912,000.0000389 fl s | 7,050,240.0000397 fl s | 7,188,480.0000405 fl s | 7,326,720.0000413 fl s | 7,464,960.000042 fl s | 7,603,200.0000428 fl s | 7,741,440.0000436 fl s | 7,879,680.0000444 fl s | 8,017,920.0000452 fl s | 8,156,160.0000459 fl s | 8,294,400.0000467 fl s | 8,432,640.0000475 fl s | 8,570,880.0000483 fl s | 8,709,120.000049 fl s | 8,847,360.0000498 fl s | 8,985,600.0000506 fl s | 9,123,840.0000514 fl s | 9,262,080.0000522 fl s | 9,400,320.0000529 fl s | 9,538,560.0000537 fl s | 9,676,800.0000545 fl s | 9,815,040.0000553 fl s | 9,953,280.0000561 fl s | 10,091,520.000057 fl s | 10,229,760.000058 fl s | 10,368,000.000058 fl s | 10,506,240.000059 fl s | 10,644,480.00006 fl s | 10,782,720.000061 fl s | 10,920,960.000061 fl s | 11,059,200.000062 fl s | 11,197,440.000063 fl s | 11,335,680.000064 fl s | 11,473,920.000065 fl s | 11,612,160.000065 fl s | 11,750,400.000066 fl s | 11,888,640.000067 fl s | 12,026,880.000068 fl s | 12,165,120.000069 fl s | 12,303,360.000069 fl s | 12,441,600.00007 fl s | 12,579,840.000071 fl s | 12,718,080.000072 fl s | 12,856,320.000072 fl s | 12,994,560.000073 fl s | 13,132,800.000074 fl s | 13,271,040.000075 fl s | 13,409,280.000076 fl s | 13,547,520.000076 fl s | 13,685,760.000077 fl s | 13,824,000.000078 fl s |
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 | fluid scruples | imperial barrels | fluid scruples |
|---|---|---|---|
| 1 | = 138240.00000078 | 6 | = 829440.00000467 |
| 2 | = 276480.00000156 | 7 | = 967680.00000545 |
| 3 | = 414720.00000234 | 8 | = 1105920.0000062 |
| 4 | = 552960.00000311 | 9 | = 1244160.000007 |
| 5 | = 691200.00000389 | 10 | = 1382400.0000078 |
The fluid scruple is 1⁄24 fluid ounce, 1⁄3 fluid dram, 20 minims, or 1⁄4 teaspoon, or 1 saltspoon. It is therefore equal to 1.23 milliliters.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| fluid scruple | fl s | ≡ 1⁄24 fl oz (imp) | = 1.18387760416×10−6 m3 | Imperial/US |
| fluid scruples | imperial barrels | fluid scruples | imperial barrels |
|---|---|---|---|
| 1 | = 7.2337962962556E-6 | 6 | = 4.3402777777533E-5 |
| 2 | = 1.4467592592511E-5 | 7 | = 5.0636574073789E-5 |
| 3 | = 2.1701388888767E-5 | 8 | = 5.7870370370044E-5 |
| 4 | = 2.8935185185022E-5 | 9 | = 6.51041666663E-5 |
| 5 | = 3.6168981481278E-5 | 10 | = 7.2337962962556E-5 |
| imperial barrels | fluid scruples |
|---|---|
| 1 | = 138,240.0000008 |
| 7.2337962962556 × 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 …) |