| 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 |
| drop (imperial) | 4,834,572.929895 gtt | 9,669,145.8597901 gtt | 14,503,718.789685 gtt | 19,338,291.71958 gtt | 24,172,864.649475 gtt | 29,007,437.57937 gtt | 33,842,010.509265 gtt | 38,676,583.43916 gtt | 43,511,156.369055 gtt | 48,345,729.29895 gtt | 53,180,302.228845 gtt | 58,014,875.15874 gtt | 62,849,448.088635 gtt | 67,684,021.01853 gtt | 72,518,593.948426 gtt | 77,353,166.878321 gtt | 82,187,739.808216 gtt | 87,022,312.738111 gtt | 91,856,885.668006 gtt | 96,691,458.597901 gtt | 101,526,031.5278 gtt | 106,360,604.45769 gtt | 111,195,177.38759 gtt | 116,029,750.31748 gtt | 120,864,323.24738 gtt | 125,698,896.17727 gtt | 130,533,469.10717 gtt | 135,368,042.03706 gtt | 140,202,614.96696 gtt | 145,037,187.89685 gtt | 149,871,760.82675 gtt | 154,706,333.75664 gtt | 159,540,906.68654 gtt | 164,375,479.61643 gtt | 169,210,052.54633 gtt | 174,044,625.47622 gtt | 178,879,198.40612 gtt | 183,713,771.33601 gtt | 188,548,344.26591 gtt | 193,382,917.1958 gtt | 198,217,490.1257 gtt | 203,052,063.05559 gtt | 207,886,635.98549 gtt | 212,721,208.91538 gtt | 217,555,781.84528 gtt | 222,390,354.77517 gtt | 227,224,927.70507 gtt | 232,059,500.63496 gtt | 236,894,073.56486 gtt | 241,728,646.49475 gtt | 246,563,219.42465 gtt | 251,397,792.35454 gtt | 256,232,365.28444 gtt | 261,066,938.21433 gtt | 265,901,511.14423 gtt | 270,736,084.07412 gtt | 275,570,657.00402 gtt | 280,405,229.93391 gtt | 285,239,802.86381 gtt | 290,074,375.7937 gtt | 294,908,948.7236 gtt | 299,743,521.65349 gtt | 304,578,094.58339 gtt | 309,412,667.51328 gtt | 314,247,240.44318 gtt | 319,081,813.37307 gtt | 323,916,386.30297 gtt | 328,750,959.23286 gtt | 333,585,532.16276 gtt | 338,420,105.09265 gtt | 343,254,678.02255 gtt | 348,089,250.95244 gtt | 352,923,823.88234 gtt | 357,758,396.81223 gtt | 362,592,969.74213 gtt | 367,427,542.67202 gtt | 372,262,115.60192 gtt | 377,096,688.53181 gtt | 381,931,261.46171 gtt | 386,765,834.3916 gtt | 391,600,407.3215 gtt | 396,434,980.25139 gtt | 401,269,553.18129 gtt | 406,104,126.11118 gtt | 410,938,699.04108 gtt | 415,773,271.97097 gtt | 420,607,844.90087 gtt | 425,442,417.83076 gtt | 430,276,990.76066 gtt | 435,111,563.69055 gtt | 439,946,136.62045 gtt | 444,780,709.55034 gtt | 449,615,282.48024 gtt | 454,449,855.41013 gtt | 459,284,428.34003 gtt | 464,119,001.26992 gtt | 468,953,574.19982 gtt | 473,788,147.12971 gtt | 478,622,720.05961 gtt | 483,457,292.9895 gtt |
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 | drops (imperial) | pipes | drops (imperial) |
|---|---|---|---|
| 1 | = 4834572.929895 | 6 | = 29007437.57937 |
| 2 | = 9669145.8597901 | 7 | = 33842010.509265 |
| 3 | = 14503718.789685 | 8 | = 38676583.43916 |
| 4 | = 19338291.71958 | 9 | = 43511156.369055 |
| 5 | = 24172864.649475 | 10 | = 48345729.29895 |
The drop is an approximated unit of measure of volume, the amount dispensed as one drop from a dropper or drip chamber. It is often used in giving quantities of liquid drugs to patients, and occasionally in cooking.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| drop (imperial) | gtt | ≡ 1⁄288 fl oz (imp) | = 98.6564670138×10−9 m3 | Imperial/US |
| drops (imperial) | pipes | drops (imperial) | pipes |
|---|---|---|---|
| 1 | = 2.0684350293206E-7 | 6 | = 1.2410610175924E-6 |
| 2 | = 4.1368700586412E-7 | 7 | = 1.4479045205244E-6 |
| 3 | = 6.2053050879618E-7 | 8 | = 1.6547480234565E-6 |
| 4 | = 8.2737401172824E-7 | 9 | = 1.8615915263885E-6 |
| 5 | = 1.0342175146603E-6 | 10 | = 2.0684350293206E-6 |
| pipes | drops (imperial) |
|---|---|
| 1 | = 4,834,572.929895 |
| 2.0684350293206 × 10-7 | = 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 …) |