| Imperial fluid ounce | 1 fl oz (imp) | 2 fl oz (imp) | 3 fl oz (imp) | 4 fl oz (imp) | 5 fl oz (imp) | 6 fl oz (imp) | 7 fl oz (imp) | 8 fl oz (imp) | 9 fl oz (imp) | 10 fl oz (imp) | 11 fl oz (imp) | 12 fl oz (imp) | 13 fl oz (imp) | 14 fl oz (imp) | 15 fl oz (imp) | 16 fl oz (imp) | 17 fl oz (imp) | 18 fl oz (imp) | 19 fl oz (imp) | 20 fl oz (imp) | 21 fl oz (imp) | 22 fl oz (imp) | 23 fl oz (imp) | 24 fl oz (imp) | 25 fl oz (imp) | 26 fl oz (imp) | 27 fl oz (imp) | 28 fl oz (imp) | 29 fl oz (imp) | 30 fl oz (imp) | 31 fl oz (imp) | 32 fl oz (imp) | 33 fl oz (imp) | 34 fl oz (imp) | 35 fl oz (imp) | 36 fl oz (imp) | 37 fl oz (imp) | 38 fl oz (imp) | 39 fl oz (imp) | 40 fl oz (imp) | 41 fl oz (imp) | 42 fl oz (imp) | 43 fl oz (imp) | 44 fl oz (imp) | 45 fl oz (imp) | 46 fl oz (imp) | 47 fl oz (imp) | 48 fl oz (imp) | 49 fl oz (imp) | 50 fl oz (imp) | 51 fl oz (imp) | 52 fl oz (imp) | 53 fl oz (imp) | 54 fl oz (imp) | 55 fl oz (imp) | 56 fl oz (imp) | 57 fl oz (imp) | 58 fl oz (imp) | 59 fl oz (imp) | 60 fl oz (imp) | 61 fl oz (imp) | 62 fl oz (imp) | 63 fl oz (imp) | 64 fl oz (imp) | 65 fl oz (imp) | 66 fl oz (imp) | 67 fl oz (imp) | 68 fl oz (imp) | 69 fl oz (imp) | 70 fl oz (imp) | 71 fl oz (imp) | 72 fl oz (imp) | 73 fl oz (imp) | 74 fl oz (imp) | 75 fl oz (imp) | 76 fl oz (imp) | 77 fl oz (imp) | 78 fl oz (imp) | 79 fl oz (imp) | 80 fl oz (imp) | 81 fl oz (imp) | 82 fl oz (imp) | 83 fl oz (imp) | 84 fl oz (imp) | 85 fl oz (imp) | 86 fl oz (imp) | 87 fl oz (imp) | 88 fl oz (imp) | 89 fl oz (imp) | 90 fl oz (imp) | 91 fl oz (imp) | 92 fl oz (imp) | 93 fl oz (imp) | 94 fl oz (imp) | 95 fl oz (imp) | 96 fl oz (imp) | 97 fl oz (imp) | 98 fl oz (imp) | 99 fl oz (imp) | 100 fl oz (imp) |
| butt | 5.9570928844487 × 10-5 butt | 0.0001191 butt | 0.0001787 butt | 0.0002383 butt | 0.0002979 butt | 0.0003574 butt | 0.0004170 butt | 0.0004766 butt | 0.0005361 butt | 0.0005957 butt | 0.0006553 butt | 0.0007149 butt | 0.0007744 butt | 0.0008340 butt | 0.0008936 butt | 0.0009531 butt | 0.0010127 butt | 0.0010723 butt | 0.0011318 butt | 0.0011914 butt | 0.0012510 butt | 0.0013106 butt | 0.0013701 butt | 0.0014297 butt | 0.0014893 butt | 0.0015488 butt | 0.0016084 butt | 0.0016680 butt | 0.0017276 butt | 0.0017871 butt | 0.0018467 butt | 0.0019063 butt | 0.0019658 butt | 0.0020254 butt | 0.0020850 butt | 0.0021446 butt | 0.0022041 butt | 0.0022637 butt | 0.0023233 butt | 0.0023828 butt | 0.0024424 butt | 0.0025020 butt | 0.0025615 butt | 0.0026211 butt | 0.0026807 butt | 0.0027403 butt | 0.0027998 butt | 0.0028594 butt | 0.0029190 butt | 0.0029785 butt | 0.0030381 butt | 0.0030977 butt | 0.0031573 butt | 0.0032168 butt | 0.0032764 butt | 0.0033360 butt | 0.0033955 butt | 0.0034551 butt | 0.0035147 butt | 0.0035743 butt | 0.0036338 butt | 0.0036934 butt | 0.0037530 butt | 0.0038125 butt | 0.0038721 butt | 0.0039317 butt | 0.0039913 butt | 0.0040508 butt | 0.0041104 butt | 0.0041700 butt | 0.0042295 butt | 0.0042891 butt | 0.0043487 butt | 0.0044082 butt | 0.0044678 butt | 0.0045274 butt | 0.0045870 butt | 0.0046465 butt | 0.0047061 butt | 0.0047657 butt | 0.0048252 butt | 0.0048848 butt | 0.0049444 butt | 0.0050040 butt | 0.0050635 butt | 0.0051231 butt | 0.0051827 butt | 0.0052422 butt | 0.0053018 butt | 0.0053614 butt | 0.0054210 butt | 0.0054805 butt | 0.0055401 butt | 0.0055997 butt | 0.0056592 butt | 0.0057188 butt | 0.0057784 butt | 0.0058380 butt | 0.0058975 butt | 0.0059571 butt |
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.
Imperial fluid ounce
| 1 imperial fluid ounce | = | 1⁄160 | imperial gallon |
| = | 1⁄40 | imperial quart | |
| = | 1⁄20 | imperial pint | |
| = | 1⁄5 | imperial gill | |
| = | 8 | imperial fluid drams | |
| = | 28.4130625 | millilitres | |
| ≈ | 1.733871455 | cubic inches | |
| ≈ | 0.960759940 | US fluid ounces | |
| ≈ | the volume of 1 avoirdupois ounce of water | ||
| 1 Imperial fluid ounces = 5.9570928844487E-5 butts | 6 Imperial fluid ounces = 0.00035742557306692 butts |
| 2 Imperial fluid ounces = 0.00011914185768897 butts | 7 Imperial fluid ounces = 0.00041699650191141 butts |
| 3 Imperial fluid ounces = 0.00017871278653346 butts | 8 Imperial fluid ounces = 0.00047656743075589 butts |
| 4 Imperial fluid ounces = 0.00023828371537795 butts | 9 Imperial fluid ounces = 0.00053613835960038 butts |
| 5 Imperial fluid ounces = 0.00029785464422243 butts | 10 Imperial fluid ounces = 0.00059570928844487 butts |
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).
| 1 butts = 16786.71156212 Imperial fluid ounces | 6 butts = 100720.26937272 Imperial fluid ounces |
| 2 butts = 33573.423124241 Imperial fluid ounces | 7 butts = 117506.98093484 Imperial fluid ounces |
| 3 butts = 50360.134686361 Imperial fluid ounces | 8 butts = 134293.69249696 Imperial fluid ounces |
| 4 butts = 67146.846248482 Imperial fluid ounces | 9 butts = 151080.40405908 Imperial fluid ounces |
| 5 butts = 83933.557810602 Imperial fluid ounces | 10 butts = 167867.1156212 Imperial fluid ounces |
| 1 Imperial fluid ounces = 5.9570928844487 × 10-5 butts |
| 1 butts = 16,786.7115621 Imperial fluid ounces |