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 |
metric cup | 9.4389489 c | 18.8778977 c | 28.3168466 c | 37.7557955 c | 47.1947443 c | 56.6336932 c | 66.0726420 c | 75.5115909 c | 84.9505398 c | 94.3894886 c | 103.8284375 c | 113.2673864 c | 122.7063352 c | 132.1452841 c | 141.5842330 c | 151.0231818 c | 160.4621307 c | 169.9010796 c | 179.3400284 c | 188.7789773 c | 198.2179261 c | 207.6568750 c | 217.0958239 c | 226.5347727 c | 235.9737216 c | 245.4126705 c | 254.8516193 c | 264.2905682 c | 273.7295171 c | 283.1684659 c | 292.6074148 c | 302.0463636 c | 311.4853125 c | 320.9242614 c | 330.3632102 c | 339.8021591 c | 349.2411080 c | 358.6800568 c | 368.1190057 c | 377.5579546 c | 386.9969034 c | 396.4358523 c | 405.8748012 c | 415.3137500 c | 424.7526989 c | 434.1916477 c | 443.6305966 c | 453.0695455 c | 462.5084943 c | 471.9474432 c | 481.3863921 c | 490.8253409 c | 500.2642898 c | 509.7032387 c | 519.1421875 c | 528.5811364 c | 538.0200852 c | 547.4590341 c | 556.8979830 c | 566.3369318 c | 575.7758807 c | 585.2148296 c | 594.6537784 c | 604.0927273 c | 613.5316762 c | 622.9706250 c | 632.4095739 c | 641.8485228 c | 651.2874716 c | 660.7264205 c | 670.1653693 c | 679.6043182 c | 689.0432671 c | 698.4822159 c | 707.9211648 c | 717.3601137 c | 726.7990625 c | 736.2380114 c | 745.6769603 c | 755.1159091 c | 764.5548580 c | 773.9938068 c | 783.4327557 c | 792.8717046 c | 802.3106534 c | 811.7496023 c | 821.1885512 c | 830.6275000 c | 840.0664489 c | 849.5053978 c | 858.9443466 c | 868.3832955 c | 877.8222444 c | 887.2611932 c | 896.7001421 c | 906.1390909 c | 915.5780398 c | 925.0169887 c | 934.4559375 c | 943.8948864 c |
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 | metric cups | board feet | metric cups |
---|---|---|---|
1 | ≡ 9.438948864 | 6 | ≡ 56.633693184 |
2 | ≡ 18.877897728 | 7 | ≡ 66.072642048 |
3 | ≡ 28.316846592 | 8 | ≡ 75.511590912 |
4 | ≡ 37.755795456 | 9 | ≡ 84.950539776 |
5 | ≡ 47.19474432 | 10 | ≡ 94.38948864 |
Australia, Canada, New Zealand, and some other members of the Commonwealth of Nations—being former British colonies that have since metricated—employ a "metric cup" of 250 millilitres. Although derived from the metric system, it is not an official metric unit.
1 cup | = | 250 | millilitres |
= | 16 2⁄3 | international tablespoons (15 ml each) | |
= | 12.5 | Australian tablespoons (20 ml each) | |
≈ | 8.80 | imperial fluid ounces | |
≈ | 8.45 | U.S. customary fluid ounces |
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
metric cup | c | = 250.0×10−6 m3 | ≡ 250.0×10−6 m3 | Imperial/US |
metric cups | board feet | metric cups | board feet |
---|---|---|---|
1 | ≡ 0.10594400016447 | 6 | ≡ 0.63566400098679 |
2 | ≡ 0.21188800032893 | 7 | ≡ 0.74160800115126 |
3 | ≡ 0.3178320004934 | 8 | ≡ 0.84755200131573 |
4 | ≡ 0.42377600065786 | 9 | ≡ 0.95349600148019 |
5 | ≡ 0.52972000082233 | 10 | ≡ 1.0594400016447 |
board feet | metric cups |
---|---|
1 | ≡ 9.4389489 |
0.1059440 | ≡ 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 …) |