| firkin | 1 firkin | 2 firkin | 3 firkin | 4 firkin | 5 firkin | 6 firkin | 7 firkin | 8 firkin | 9 firkin | 10 firkin | 11 firkin | 12 firkin | 13 firkin | 14 firkin | 15 firkin | 16 firkin | 17 firkin | 18 firkin | 19 firkin | 20 firkin | 21 firkin | 22 firkin | 23 firkin | 24 firkin | 25 firkin | 26 firkin | 27 firkin | 28 firkin | 29 firkin | 30 firkin | 31 firkin | 32 firkin | 33 firkin | 34 firkin | 35 firkin | 36 firkin | 37 firkin | 38 firkin | 39 firkin | 40 firkin | 41 firkin | 42 firkin | 43 firkin | 44 firkin | 45 firkin | 46 firkin | 47 firkin | 48 firkin | 49 firkin | 50 firkin | 51 firkin | 52 firkin | 53 firkin | 54 firkin | 55 firkin | 56 firkin | 57 firkin | 58 firkin | 59 firkin | 60 firkin | 61 firkin | 62 firkin | 63 firkin | 64 firkin | 65 firkin | 66 firkin | 67 firkin | 68 firkin | 69 firkin | 70 firkin | 71 firkin | 72 firkin | 73 firkin | 74 firkin | 75 firkin | 76 firkin | 77 firkin | 78 firkin | 79 firkin | 80 firkin | 81 firkin | 82 firkin | 83 firkin | 84 firkin | 85 firkin | 86 firkin | 87 firkin | 88 firkin | 89 firkin | 90 firkin | 91 firkin | 92 firkin | 93 firkin | 94 firkin | 95 firkin | 96 firkin | 97 firkin | 98 firkin | 99 firkin | 100 firkin |
| cubic meter | 0.0409148 m3 | 0.0818296 m3 | 0.1227444 m3 | 0.1636592 m3 | 0.2045741 m3 | 0.2454889 m3 | 0.2864037 m3 | 0.3273185 m3 | 0.3682333 m3 | 0.4091481 m3 | 0.4500629 m3 | 0.4909777 m3 | 0.5318925 m3 | 0.5728073 m3 | 0.6137222 m3 | 0.6546370 m3 | 0.6955518 m3 | 0.7364666 m3 | 0.7773814 m3 | 0.8182962 m3 | 0.8592110 m3 | 0.9001258 m3 | 0.9410406 m3 | 0.9819554 m3 | 1.0228703 m3 | 1.0637851 m3 | 1.1046999 m3 | 1.1456147 m3 | 1.1865295 m3 | 1.2274443 m3 | 1.2683591 m3 | 1.3092739 m3 | 1.3501887 m3 | 1.3911035 m3 | 1.4320184 m3 | 1.4729332 m3 | 1.5138480 m3 | 1.5547628 m3 | 1.5956776 m3 | 1.6365924 m3 | 1.6775072 m3 | 1.7184220 m3 | 1.7593368 m3 | 1.8002516 m3 | 1.8411665 m3 | 1.8820813 m3 | 1.9229961 m3 | 1.9639109 m3 | 2.0048257 m3 | 2.0457405 m3 | 2.0866553 m3 | 2.1275701 m3 | 2.1684849 m3 | 2.2093997 m3 | 2.2503146 m3 | 2.2912294 m3 | 2.3321442 m3 | 2.3730590 m3 | 2.4139738 m3 | 2.4548886 m3 | 2.4958034 m3 | 2.5367182 m3 | 2.5776330 m3 | 2.6185478 m3 | 2.6594627 m3 | 2.7003775 m3 | 2.7412923 m3 | 2.7822071 m3 | 2.8231219 m3 | 2.8640367 m3 | 2.9049515 m3 | 2.9458663 m3 | 2.9867811 m3 | 3.0276959 m3 | 3.0686108 m3 | 3.1095256 m3 | 3.1504404 m3 | 3.1913552 m3 | 3.2322700 m3 | 3.2731848 m3 | 3.3140996 m3 | 3.3550144 m3 | 3.3959292 m3 | 3.4368440 m3 | 3.4777589 m3 | 3.5186737 m3 | 3.5595885 m3 | 3.6005033 m3 | 3.6414181 m3 | 3.6823329 m3 | 3.7232477 m3 | 3.7641625 m3 | 3.8050773 m3 | 3.8459921 m3 | 3.8869070 m3 | 3.9278218 m3 | 3.9687366 m3 | 4.0096514 m3 | 4.0505662 m3 | 4.091481 m3 |
The ale or beer firkin (from Middle Dutch vierdekijn meaning "fourth") is a quarter of an ale or beer barrel or half a kilderkin. This unit is much smaller than the wine firkin. Casks in this size (themselves called firkins) are the most common container for cask ale.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| firkin | ≡ 9 gal (imp) | = 0.04091481 m3 | Imperial/US |
| firkins | cubic meters | firkins | cubic meters |
|---|---|---|---|
| 1 | = 0.04091481 | 6 | = 0.24548886 |
| 2 | = 0.08182962 | 7 | = 0.28640367 |
| 3 | = 0.12274443 | 8 | = 0.32731848 |
| 4 | = 0.16365924 | 9 | = 0.36823329 |
| 5 | = 0.20457405 | 10 | = 0.4091481 |
The cubic metre (in British English and international spelling as used by the International Bureau of Weights and Measures) or cubic meter (in American English) is the SI derived unitof volume. Its SI symbol is m3. It is the volume of a cube with edges one metre in length. An alternative name, which allowed a different usage with metric prefixes, was the stère, still sometimes used for dry measure (for instance, in reference to wood). Another alternative name, no longer widely used, was the kilolitre.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| cubic meter | m3 | ≡ 1 m × 1 m × 1 m | ≡ 1 m3 | Metric system SI |
| cubic meters | firkins | cubic meters | firkins |
|---|---|---|---|
| 1 | = 24.441027588788 | 6 | = 146.64616553273 |
| 2 | = 48.882055177575 | 7 | = 171.08719312151 |
| 3 | = 73.323082766363 | 8 | = 195.5282207103 |
| 4 | = 97.76411035515 | 9 | = 219.96924829909 |
| 5 | = 122.20513794394 | 10 | = 244.41027588788 |
| firkins | cubic meters |
|---|---|
| 1 | = 0.0409148 |
| 24.4410276 | = 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 …) |