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 cup | 8.3051139 c (imp) | 16.6102279 c (imp) | 24.9153418 c (imp) | 33.2204558 c (imp) | 41.5255697 c (imp) | 49.8306837 c (imp) | 58.1357976 c (imp) | 66.4409116 c (imp) | 74.7460255 c (imp) | 83.0511395 c (imp) | 91.3562534 c (imp) | 99.6613673 c (imp) | 107.9664813 c (imp) | 116.2715952 c (imp) | 124.5767092 c (imp) | 132.8818231 c (imp) | 141.1869371 c (imp) | 149.4920510 c (imp) | 157.7971650 c (imp) | 166.1022789 c (imp) | 174.4073929 c (imp) | 182.7125068 c (imp) | 191.0176207 c (imp) | 199.3227347 c (imp) | 207.6278486 c (imp) | 215.9329626 c (imp) | 224.2380765 c (imp) | 232.5431905 c (imp) | 240.8483044 c (imp) | 249.1534184 c (imp) | 257.4585323 c (imp) | 265.7636463 c (imp) | 274.0687602 c (imp) | 282.3738741 c (imp) | 290.6789881 c (imp) | 298.9841020 c (imp) | 307.2892160 c (imp) | 315.5943299 c (imp) | 323.8994439 c (imp) | 332.2045578 c (imp) | 340.5096718 c (imp) | 348.8147857 c (imp) | 357.1198997 c (imp) | 365.4250136 c (imp) | 373.7301275 c (imp) | 382.0352415 c (imp) | 390.3403554 c (imp) | 398.6454694 c (imp) | 406.9505833 c (imp) | 415.2556973 c (imp) | 423.5608112 c (imp) | 431.8659252 c (imp) | 440.1710391 c (imp) | 448.4761531 c (imp) | 456.7812670 c (imp) | 465.0863809 c (imp) | 473.3914949 c (imp) | 481.6966088 c (imp) | 490.0017228 c (imp) | 498.3068367 c (imp) | 506.6119507 c (imp) | 514.9170646 c (imp) | 523.2221786 c (imp) | 531.5272925 c (imp) | 539.8324065 c (imp) | 548.1375204 c (imp) | 556.4426343 c (imp) | 564.7477483 c (imp) | 573.0528622 c (imp) | 581.3579762 c (imp) | 589.6630901 c (imp) | 597.9682041 c (imp) | 606.2733180 c (imp) | 614.5784320 c (imp) | 622.8835459 c (imp) | 631.1886598 c (imp) | 639.4937738 c (imp) | 647.7988877 c (imp) | 656.1040017 c (imp) | 664.4091156 c (imp) | 672.7142296 c (imp) | 681.0193435 c (imp) | 689.3244575 c (imp) | 697.6295714 c (imp) | 705.9346854 c (imp) | 714.2397993 c (imp) | 722.5449132 c (imp) | 730.8500272 c (imp) | 739.1551411 c (imp) | 747.4602551 c (imp) | 755.7653690 c (imp) | 764.0704830 c (imp) | 772.3755969 c (imp) | 780.6807109 c (imp) | 788.9858248 c (imp) | 797.2909388 c (imp) | 805.5960527 c (imp) | 813.9011666 c (imp) | 822.2062806 c (imp) | 830.5113945 c (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 cups | board feet | imperial cups |
---|---|---|---|
1 | = 8.3051139453904 | 6 | = 49.830683672343 |
2 | = 16.610227890781 | 7 | = 58.135797617733 |
3 | = 24.915341836171 | 8 | = 66.440911563123 |
4 | = 33.220455781562 | 9 | = 74.746025508514 |
5 | = 41.525569726952 | 10 | = 83.051139453904 |
The official imperial cup was half an imperial pint or 10 imperial fluid ounces. It is no longer in common use, but appears in older recipe books.
1 imperial cup | = | 0.5 | imperial pints |
= | 2 | imperial gills | |
= | 10 | imperial fluid ounces | |
≈ | 284 | millilitres | |
≈ | 19 | international tablespoons | |
≈ | 14.25 | Australian tablespoons | |
≈ | 1.20 | U.S. customary cups | |
≈ | 9.61 | U.S. customary fluid ounces |
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
imperial cup | c (imp) | ≡ 10 fl oz (imp) | = 284.130625×10−6 m3 | Imperial/US |
imperial cups | board feet | imperial cups | board feet |
---|---|---|---|
1 | = 0.12040773992692 | 6 | = 0.72244643956151 |
2 | = 0.24081547985384 | 7 | = 0.84285417948843 |
3 | = 0.36122321978076 | 8 | = 0.96326191941535 |
4 | = 0.48163095970768 | 9 | = 1.0836696593423 |
5 | = 0.6020386996346 | 10 | = 1.2040773992692 |
board feet | imperial cups |
---|---|
1 | = 8.3051139 |
0.1204077 | = 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 …) |