| board foot | 1 fbm | 2 fbm | 3 fbm | 4 fbm | 5 fbm | 6 fbm | 7 fbm | 8 fbm | 9 fbm | 10 fbm | 11 fbm | 12 fbm | 13 fbm | 14 fbm | 15 fbm | 16 fbm | 17 fbm | 18 fbm | 19 fbm | 20 fbm | 21 fbm | 22 fbm | 23 fbm | 24 fbm | 25 fbm | 26 fbm | 27 fbm | 28 fbm | 29 fbm | 30 fbm | 31 fbm | 32 fbm | 33 fbm | 34 fbm | 35 fbm | 36 fbm | 37 fbm | 38 fbm | 39 fbm | 40 fbm | 41 fbm | 42 fbm | 43 fbm | 44 fbm | 45 fbm | 46 fbm | 47 fbm | 48 fbm | 49 fbm | 50 fbm | 51 fbm | 52 fbm | 53 fbm | 54 fbm | 55 fbm | 56 fbm | 57 fbm | 58 fbm | 59 fbm | 60 fbm | 61 fbm | 62 fbm | 63 fbm | 64 fbm | 65 fbm | 66 fbm | 67 fbm | 68 fbm | 69 fbm | 70 fbm | 71 fbm | 72 fbm | 73 fbm | 74 fbm | 75 fbm | 76 fbm | 77 fbm | 78 fbm | 79 fbm | 80 fbm | 81 fbm | 82 fbm | 83 fbm | 84 fbm | 85 fbm | 86 fbm | 87 fbm | 88 fbm | 89 fbm | 90 fbm | 91 fbm | 92 fbm | 93 fbm | 94 fbm | 95 fbm | 96 fbm | 97 fbm | 98 fbm | 99 fbm | 100 fbm |
| Imperial fluid ounce | 83.0511395 fl oz (imp) | 166.1022789 fl oz (imp) | 249.1534184 fl oz (imp) | 332.2045578 fl oz (imp) | 415.2556973 fl oz (imp) | 498.3068367 fl oz (imp) | 581.3579762 fl oz (imp) | 664.4091156 fl oz (imp) | 747.4602551 fl oz (imp) | 830.5113945 fl oz (imp) | 913.5625340 fl oz (imp) | 996.6136734 fl oz (imp) | 1,079.6648129 fl oz (imp) | 1,162.7159524 fl oz (imp) | 1,245.7670918 fl oz (imp) | 1,328.8182313 fl oz (imp) | 1,411.8693707 fl oz (imp) | 1,494.9205102 fl oz (imp) | 1,577.9716496 fl oz (imp) | 1,661.0227891 fl oz (imp) | 1,744.0739285 fl oz (imp) | 1,827.1250680 fl oz (imp) | 1,910.1762074 fl oz (imp) | 1,993.2273469 fl oz (imp) | 2,076.2784863 fl oz (imp) | 2,159.3296258 fl oz (imp) | 2,242.3807653 fl oz (imp) | 2,325.4319047 fl oz (imp) | 2,408.4830442 fl oz (imp) | 2,491.5341836 fl oz (imp) | 2,574.5853231 fl oz (imp) | 2,657.6364625 fl oz (imp) | 2,740.6876020 fl oz (imp) | 2,823.7387414 fl oz (imp) | 2,906.7898809 fl oz (imp) | 2,989.8410203 fl oz (imp) | 3,072.8921598 fl oz (imp) | 3,155.9432992 fl oz (imp) | 3,238.9944387 fl oz (imp) | 3,322.0455782 fl oz (imp) | 3,405.0967176 fl oz (imp) | 3,488.1478571 fl oz (imp) | 3,571.1989965 fl oz (imp) | 3,654.2501360 fl oz (imp) | 3,737.3012754 fl oz (imp) | 3,820.3524149 fl oz (imp) | 3,903.4035543 fl oz (imp) | 3,986.4546938 fl oz (imp) | 4,069.5058332 fl oz (imp) | 4,152.5569727 fl oz (imp) | 4,235.6081121 fl oz (imp) | 4,318.6592516 fl oz (imp) | 4,401.7103911 fl oz (imp) | 4,484.7615305 fl oz (imp) | 4,567.8126700 fl oz (imp) | 4,650.8638094 fl oz (imp) | 4,733.9149489 fl oz (imp) | 4,816.9660883 fl oz (imp) | 4,900.0172278 fl oz (imp) | 4,983.0683672 fl oz (imp) | 5,066.1195067 fl oz (imp) | 5,149.1706461 fl oz (imp) | 5,232.2217856 fl oz (imp) | 5,315.2729250 fl oz (imp) | 5,398.3240645 fl oz (imp) | 5,481.3752040 fl oz (imp) | 5,564.4263434 fl oz (imp) | 5,647.4774829 fl oz (imp) | 5,730.5286223 fl oz (imp) | 5,813.5797618 fl oz (imp) | 5,896.6309012 fl oz (imp) | 5,979.6820407 fl oz (imp) | 6,062.7331801 fl oz (imp) | 6,145.7843196 fl oz (imp) | 6,228.8354590 fl oz (imp) | 6,311.8865985 fl oz (imp) | 6,394.9377380 fl oz (imp) | 6,477.9888774 fl oz (imp) | 6,561.0400169 fl oz (imp) | 6,644.0911563 fl oz (imp) | 6,727.1422958 fl oz (imp) | 6,810.1934352 fl oz (imp) | 6,893.2445747 fl oz (imp) | 6,976.2957141 fl oz (imp) | 7,059.3468536 fl oz (imp) | 7,142.3979930 fl oz (imp) | 7,225.4491325 fl oz (imp) | 7,308.5002719 fl oz (imp) | 7,391.5514114 fl oz (imp) | 7,474.6025509 fl oz (imp) | 7,557.6536903 fl oz (imp) | 7,640.7048298 fl oz (imp) | 7,723.7559692 fl oz (imp) | 7,806.8071087 fl oz (imp) | 7,889.8582481 fl oz (imp) | 7,972.9093876 fl oz (imp) | 8,055.9605270 fl oz (imp) | 8,139.0116665 fl oz (imp) | 8,222.0628059 fl oz (imp) | 8,305.1139454 fl oz (imp) |
The board-foot is a specialized unit of measure for the volume of lumber in the United States and Canada. It is the volume of a one-foot length of a board one foot wide and one inch thick.
Board-foot can be abbreviated FBM (for "foot, board measure"), BDFT, or BF. Thousand board-feet can be abbreviated as MFBM, MBFT, or MBF. Similarly, million board-feet can be abbreviated as MMFBM, MMBFT, or MMBF.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| board foot | fbm | ≡ 144 cu in | ≡ 2.359737216×10−3 m3 | Imperial/US |
| board feet | Imperial fluid ounces | board feet | Imperial fluid ounces |
|---|---|---|---|
| 1 | ≡ 83.051139453904 | 6 | ≡ 498.30683672343 |
| 2 | ≡ 166.10227890781 | 7 | ≡ 581.35797617733 |
| 3 | ≡ 249.15341836171 | 8 | ≡ 664.40911563123 |
| 4 | ≡ 332.20455781562 | 9 | ≡ 747.46025508514 |
| 5 | ≡ 415.25569726952 | 10 | ≡ 830.51139453904 |
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 | ||
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| Imperial fluid ounce | fl oz (imp) | ≡ 1⁄160 gal (imp) | ≡ 28.4130625×10−6 m3 | Imperial/US |
| Imperial fluid ounces | board feet | Imperial fluid ounces | board feet |
|---|---|---|---|
| 1 | ≡ 0.012040773992692 | 6 | ≡ 0.072244643956151 |
| 2 | ≡ 0.024081547985384 | 7 | ≡ 0.084285417948843 |
| 3 | ≡ 0.036122321978076 | 8 | ≡ 0.096326191941535 |
| 4 | ≡ 0.048163095970768 | 9 | ≡ 0.10836696593423 |
| 5 | ≡ 0.06020386996346 | 10 | ≡ 0.12040773992692 |
| board feet | Imperial fluid ounces |
|---|---|
| 1 | ≡ 83.0511395 |
| 0.0120408 | ≡ 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 …) |