drop (imperial) | 1 gtt | 2 gtt | 3 gtt | 4 gtt | 5 gtt | 6 gtt | 7 gtt | 8 gtt | 9 gtt | 10 gtt | 11 gtt | 12 gtt | 13 gtt | 14 gtt | 15 gtt | 16 gtt | 17 gtt | 18 gtt | 19 gtt | 20 gtt | 21 gtt | 22 gtt | 23 gtt | 24 gtt | 25 gtt | 26 gtt | 27 gtt | 28 gtt | 29 gtt | 30 gtt | 31 gtt | 32 gtt | 33 gtt | 34 gtt | 35 gtt | 36 gtt | 37 gtt | 38 gtt | 39 gtt | 40 gtt | 41 gtt | 42 gtt | 43 gtt | 44 gtt | 45 gtt | 46 gtt | 47 gtt | 48 gtt | 49 gtt | 50 gtt | 51 gtt | 52 gtt | 53 gtt | 54 gtt | 55 gtt | 56 gtt | 57 gtt | 58 gtt | 59 gtt | 60 gtt | 61 gtt | 62 gtt | 63 gtt | 64 gtt | 65 gtt | 66 gtt | 67 gtt | 68 gtt | 69 gtt | 70 gtt | 71 gtt | 72 gtt | 73 gtt | 74 gtt | 75 gtt | 76 gtt | 77 gtt | 78 gtt | 79 gtt | 80 gtt | 81 gtt | 82 gtt | 83 gtt | 84 gtt | 85 gtt | 86 gtt | 87 gtt | 88 gtt | 89 gtt | 90 gtt | 91 gtt | 92 gtt | 93 gtt | 94 gtt | 95 gtt | 96 gtt | 97 gtt | 98 gtt | 99 gtt | 100 gtt |
US food labelling fluid ounce | 0.0032885 US fl oz | 0.0065771 US fl oz | 0.0098656 US fl oz | 0.0131542 US fl oz | 0.0164427 US fl oz | 0.0197313 US fl oz | 0.0230198 US fl oz | 0.0263084 US fl oz | 0.0295969 US fl oz | 0.0328855 US fl oz | 0.0361740 US fl oz | 0.0394626 US fl oz | 0.0427511 US fl oz | 0.0460397 US fl oz | 0.0493282 US fl oz | 0.0526168 US fl oz | 0.0559053 US fl oz | 0.0591939 US fl oz | 0.0624824 US fl oz | 0.0657710 US fl oz | 0.0690595 US fl oz | 0.0723481 US fl oz | 0.0756366 US fl oz | 0.0789252 US fl oz | 0.0822137 US fl oz | 0.0855023 US fl oz | 0.0887908 US fl oz | 0.0920794 US fl oz | 0.0953679 US fl oz | 0.0986565 US fl oz | 0.1019450 US fl oz | 0.1052336 US fl oz | 0.1085221 US fl oz | 0.1118107 US fl oz | 0.1150992 US fl oz | 0.1183878 US fl oz | 0.1216763 US fl oz | 0.1249649 US fl oz | 0.1282534 US fl oz | 0.1315420 US fl oz | 0.1348305 US fl oz | 0.1381191 US fl oz | 0.1414076 US fl oz | 0.1446962 US fl oz | 0.1479847 US fl oz | 0.1512732 US fl oz | 0.1545618 US fl oz | 0.1578503 US fl oz | 0.1611389 US fl oz | 0.1644274 US fl oz | 0.1677160 US fl oz | 0.1710045 US fl oz | 0.1742931 US fl oz | 0.1775816 US fl oz | 0.1808702 US fl oz | 0.1841587 US fl oz | 0.1874473 US fl oz | 0.1907358 US fl oz | 0.1940244 US fl oz | 0.1973129 US fl oz | 0.2006015 US fl oz | 0.2038900 US fl oz | 0.2071786 US fl oz | 0.2104671 US fl oz | 0.2137557 US fl oz | 0.2170442 US fl oz | 0.2203328 US fl oz | 0.2236213 US fl oz | 0.2269099 US fl oz | 0.2301984 US fl oz | 0.2334870 US fl oz | 0.2367755 US fl oz | 0.2400641 US fl oz | 0.2433526 US fl oz | 0.2466412 US fl oz | 0.2499297 US fl oz | 0.2532183 US fl oz | 0.2565068 US fl oz | 0.2597954 US fl oz | 0.2630839 US fl oz | 0.2663725 US fl oz | 0.2696610 US fl oz | 0.2729496 US fl oz | 0.2762381 US fl oz | 0.2795267 US fl oz | 0.2828152 US fl oz | 0.2861038 US fl oz | 0.2893923 US fl oz | 0.2926809 US fl oz | 0.2959694 US fl oz | 0.2992579 US fl oz | 0.3025465 US fl oz | 0.3058350 US fl oz | 0.3091236 US fl oz | 0.3124121 US fl oz | 0.3157007 US fl oz | 0.3189892 US fl oz | 0.3222778 US fl oz | 0.3255663 US fl oz | 0.3288549 US fl oz |
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) | US food labelling fluid ounces | drops (imperial) | US food labelling fluid ounces |
---|---|---|---|
1 | = 0.00328854890046 | 6 | = 0.01973129340276 |
2 | = 0.00657709780092 | 7 | = 0.02301984230322 |
3 | = 0.00986564670138 | 8 | = 0.02630839120368 |
4 | = 0.01315419560184 | 9 | = 0.02959694010414 |
5 | = 0.0164427445023 | 10 | = 0.0328854890046 |
A fluid ounce (abbreviated fl oz, fl. oz. or oz. fl., old forms ℥, fl ℥, f℥, ƒ ℥) is a unit of volume (also called capacity) typically used for measuring liquids. Various definitions have been used throughout history, but only two are still in common use: the British Imperial and the United States customary fluid ounce. An imperial fluid ounce is 1⁄20 of an imperial pint, 1⁄160 of an imperial gallon or approximately 28.4 ml. A US fluid ounce is 1⁄16 of a US fluid pint and 1⁄128 of a US liquid gallon or approximately 29.57 ml, making it about 4% larger than the imperial fluid ounce.
US food labelling fluid ounce
US regulation 21 CFR 101.9(b)(5)(viii) also defines a fluid ounce as exactly 30 millilitres, but this is for use in nutrition labelling only.
30 millilitres | ≈ | 1.055852392 | imperial fluid ounces |
≈ | 1.014420681 | US customary fluid ounces | |
≈ | 1.830712323 | cubic inches |
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
US food labelling fluid ounce | US fl oz | ≡ 30 mL | ≡ 3×10−5 m3 | Imperial/US |
US food labelling fluid ounces | drops (imperial) | US food labelling fluid ounces | drops (imperial) |
---|---|---|---|
1 | = 304.08548884893 | 6 | = 1824.5129330936 |
2 | = 608.17097769787 | 7 | = 2128.5984219425 |
3 | = 912.2564665468 | 8 | = 2432.6839107915 |
4 | = 1216.3419553957 | 9 | = 2736.7693996404 |
5 | = 1520.4274442447 | 10 | = 3040.8548884893 |
drops (imperial) | US food labelling fluid ounces |
---|---|
1 | = 0.0032885 |
304.0854888 | = 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 …) |