| drop (medical) | 1 drop (medical) | 2 drop (medical) | 3 drop (medical) | 4 drop (medical) | 5 drop (medical) | 6 drop (medical) | 7 drop (medical) | 8 drop (medical) | 9 drop (medical) | 10 drop (medical) | 11 drop (medical) | 12 drop (medical) | 13 drop (medical) | 14 drop (medical) | 15 drop (medical) | 16 drop (medical) | 17 drop (medical) | 18 drop (medical) | 19 drop (medical) | 20 drop (medical) | 21 drop (medical) | 22 drop (medical) | 23 drop (medical) | 24 drop (medical) | 25 drop (medical) | 26 drop (medical) | 27 drop (medical) | 28 drop (medical) | 29 drop (medical) | 30 drop (medical) | 31 drop (medical) | 32 drop (medical) | 33 drop (medical) | 34 drop (medical) | 35 drop (medical) | 36 drop (medical) | 37 drop (medical) | 38 drop (medical) | 39 drop (medical) | 40 drop (medical) | 41 drop (medical) | 42 drop (medical) | 43 drop (medical) | 44 drop (medical) | 45 drop (medical) | 46 drop (medical) | 47 drop (medical) | 48 drop (medical) | 49 drop (medical) | 50 drop (medical) | 51 drop (medical) | 52 drop (medical) | 53 drop (medical) | 54 drop (medical) | 55 drop (medical) | 56 drop (medical) | 57 drop (medical) | 58 drop (medical) | 59 drop (medical) | 60 drop (medical) | 61 drop (medical) | 62 drop (medical) | 63 drop (medical) | 64 drop (medical) | 65 drop (medical) | 66 drop (medical) | 67 drop (medical) | 68 drop (medical) | 69 drop (medical) | 70 drop (medical) | 71 drop (medical) | 72 drop (medical) | 73 drop (medical) | 74 drop (medical) | 75 drop (medical) | 76 drop (medical) | 77 drop (medical) | 78 drop (medical) | 79 drop (medical) | 80 drop (medical) | 81 drop (medical) | 82 drop (medical) | 83 drop (medical) | 84 drop (medical) | 85 drop (medical) | 86 drop (medical) | 87 drop (medical) | 88 drop (medical) | 89 drop (medical) | 90 drop (medical) | 91 drop (medical) | 92 drop (medical) | 93 drop (medical) | 94 drop (medical) | 95 drop (medical) | 96 drop (medical) | 97 drop (medical) | 98 drop (medical) | 99 drop (medical) | 100 drop (medical) |
| fluid barrel | 7.2070078116547 × 10-7 fl bl | 1.4414015623309 × 10-6 fl bl | 2.1621023434964 × 10-6 fl bl | 2.8828031246619 × 10-6 fl bl | 3.6035039058274 × 10-6 fl bl | 4.3242046869928 × 10-6 fl bl | 5.0449054681583 × 10-6 fl bl | 5.7656062493238 × 10-6 fl bl | 6.4863070304892 × 10-6 fl bl | 7.2070078116547 × 10-6 fl bl | 7.9277085928202 × 10-6 fl bl | 8.6484093739856 × 10-6 fl bl | 9.3691101551511 × 10-6 fl bl | 1.0089810936317 × 10-5 fl bl | 1.0810511717482 × 10-5 fl bl | 1.1531212498648 × 10-5 fl bl | 1.2251913279813 × 10-5 fl bl | 1.2972614060978 × 10-5 fl bl | 1.3693314842144 × 10-5 fl bl | 1.4414015623309 × 10-5 fl bl | 1.5134716404475 × 10-5 fl bl | 1.585541718564 × 10-5 fl bl | 1.6576117966806 × 10-5 fl bl | 1.7296818747971 × 10-5 fl bl | 1.8017519529137 × 10-5 fl bl | 1.8738220310302 × 10-5 fl bl | 1.9458921091468 × 10-5 fl bl | 2.0179621872633 × 10-5 fl bl | 2.0900322653799 × 10-5 fl bl | 2.1621023434964 × 10-5 fl bl | 2.234172421613 × 10-5 fl bl | 2.3062424997295 × 10-5 fl bl | 2.3783125778461 × 10-5 fl bl | 2.4503826559626 × 10-5 fl bl | 2.5224527340791 × 10-5 fl bl | 2.5945228121957 × 10-5 fl bl | 2.6665928903122 × 10-5 fl bl | 2.7386629684288 × 10-5 fl bl | 2.8107330465453 × 10-5 fl bl | 2.8828031246619 × 10-5 fl bl | 2.9548732027784 × 10-5 fl bl | 3.026943280895 × 10-5 fl bl | 3.0990133590115 × 10-5 fl bl | 3.1710834371281 × 10-5 fl bl | 3.2431535152446 × 10-5 fl bl | 3.3152235933612 × 10-5 fl bl | 3.3872936714777 × 10-5 fl bl | 3.4593637495943 × 10-5 fl bl | 3.5314338277108 × 10-5 fl bl | 3.6035039058274 × 10-5 fl bl | 3.6755739839439 × 10-5 fl bl | 3.7476440620604 × 10-5 fl bl | 3.819714140177 × 10-5 fl bl | 3.8917842182935 × 10-5 fl bl | 3.9638542964101 × 10-5 fl bl | 4.0359243745266 × 10-5 fl bl | 4.1079944526432 × 10-5 fl bl | 4.1800645307597 × 10-5 fl bl | 4.2521346088763 × 10-5 fl bl | 4.3242046869928 × 10-5 fl bl | 4.3962747651094 × 10-5 fl bl | 4.4683448432259 × 10-5 fl bl | 4.5404149213425 × 10-5 fl bl | 4.612484999459 × 10-5 fl bl | 4.6845550775756 × 10-5 fl bl | 4.7566251556921 × 10-5 fl bl | 4.8286952338087 × 10-5 fl bl | 4.9007653119252 × 10-5 fl bl | 4.9728353900417 × 10-5 fl bl | 5.0449054681583 × 10-5 fl bl | 5.1169755462748 × 10-5 fl bl | 5.1890456243914 × 10-5 fl bl | 5.2611157025079 × 10-5 fl bl | 5.3331857806245 × 10-5 fl bl | 5.405255858741 × 10-5 fl bl | 5.4773259368576 × 10-5 fl bl | 5.5493960149741 × 10-5 fl bl | 5.6214660930907 × 10-5 fl bl | 5.6935361712072 × 10-5 fl bl | 5.7656062493238 × 10-5 fl bl | 5.8376763274403 × 10-5 fl bl | 5.9097464055569 × 10-5 fl bl | 5.9818164836734 × 10-5 fl bl | 6.05388656179 × 10-5 fl bl | 6.1259566399065 × 10-5 fl bl | 6.198026718023 × 10-5 fl bl | 6.2700967961396 × 10-5 fl bl | 6.3421668742561 × 10-5 fl bl | 6.4142369523727 × 10-5 fl bl | 6.4863070304892 × 10-5 fl bl | 6.5583771086058 × 10-5 fl bl | 6.6304471867223 × 10-5 fl bl | 6.7025172648389 × 10-5 fl bl | 6.7745873429554 × 10-5 fl bl | 6.846657421072 × 10-5 fl bl | 6.9187274991885 × 10-5 fl bl | 6.9907975773051 × 10-5 fl bl | 7.0628676554216 × 10-5 fl bl | 7.1349377335382 × 10-5 fl bl | 7.2070078116547 × 10-5 fl bl |
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 (medical) | ≡ 1⁄12 ml | = 83.3×10−9 m3 | Imperial/US |
| drops (medical) | fluid barrels | drops (medical) | fluid barrels |
|---|---|---|---|
| 1 | = 7.2070078116547E-7 | 6 | = 4.3242046869928E-6 |
| 2 | = 1.4414015623309E-6 | 7 | = 5.0449054681583E-6 |
| 3 | = 2.1621023434964E-6 | 8 | = 5.7656062493238E-6 |
| 4 | = 2.8828031246619E-6 | 9 | = 6.4863070304892E-6 |
| 5 | = 3.6035039058274E-6 | 10 | = 7.2070078116547E-6 |
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 |
|---|---|---|---|---|
| fluid barrel | fl bl | ≡ 31 1⁄2 gal (US) | = 0.119240471196 m3 | Imperial/US |
| fluid barrels | drops (medical) | fluid barrels | drops (medical) |
|---|---|---|---|
| 1 | = 1387538.3878215 | 6 | = 8325230.3269287 |
| 2 | = 2775076.7756429 | 7 | = 9712768.7147502 |
| 3 | = 4162615.1634644 | 8 | = 11100307.102572 |
| 4 | = 5550153.5512858 | 9 | = 12487845.490393 |
| 5 | = 6937691.9391073 | 10 | = 13875383.878215 |
| drops (medical) | fluid barrels |
|---|---|
| 1 | = 7.2070078116547 × 10-7 |
| 1,387,538.3878215 | = 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 …) |