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 |
lambda | 2,359,737.216 λ | 4,719,474.432 λ | 7,079,211.648 λ | 9,438,948.864 λ | 11,798,686.08 λ | 14,158,423.296 λ | 16,518,160.512 λ | 18,877,897.728 λ | 21,237,634.944 λ | 23,597,372.16 λ | 25,957,109.376 λ | 28,316,846.592 λ | 30,676,583.808 λ | 33,036,321.024 λ | 35,396,058.24 λ | 37,755,795.456 λ | 40,115,532.672 λ | 42,475,269.888 λ | 44,835,007.104 λ | 47,194,744.32 λ | 49,554,481.536 λ | 51,914,218.752 λ | 54,273,955.968 λ | 56,633,693.184 λ | 58,993,430.4 λ | 61,353,167.616 λ | 63,712,904.832 λ | 66,072,642.048 λ | 68,432,379.264 λ | 70,792,116.48 λ | 73,151,853.696 λ | 75,511,590.912 λ | 77,871,328.128 λ | 80,231,065.344 λ | 82,590,802.56 λ | 84,950,539.776 λ | 87,310,276.992 λ | 89,670,014.208 λ | 92,029,751.424 λ | 94,389,488.64 λ | 96,749,225.856 λ | 99,108,963.072 λ | 101,468,700.288 λ | 103,828,437.504 λ | 106,188,174.72 λ | 108,547,911.936 λ | 110,907,649.152 λ | 113,267,386.368 λ | 115,627,123.584 λ | 117,986,860.8 λ | 120,346,598.016 λ | 122,706,335.232 λ | 125,066,072.448 λ | 127,425,809.664 λ | 129,785,546.88 λ | 132,145,284.096 λ | 134,505,021.312 λ | 136,864,758.528 λ | 139,224,495.744 λ | 141,584,232.96 λ | 143,943,970.176 λ | 146,303,707.392 λ | 148,663,444.608 λ | 151,023,181.824 λ | 153,382,919.04 λ | 155,742,656.256 λ | 158,102,393.472 λ | 160,462,130.688 λ | 162,821,867.904 λ | 165,181,605.12 λ | 167,541,342.336 λ | 169,901,079.552 λ | 172,260,816.768 λ | 174,620,553.984 λ | 176,980,291.2 λ | 179,340,028.416 λ | 181,699,765.632 λ | 184,059,502.848 λ | 186,419,240.064 λ | 188,778,977.28 λ | 191,138,714.496 λ | 193,498,451.712 λ | 195,858,188.928 λ | 198,217,926.144 λ | 200,577,663.36 λ | 202,937,400.576 λ | 205,297,137.792 λ | 207,656,875.008 λ | 210,016,612.224 λ | 212,376,349.44 λ | 214,736,086.656 λ | 217,095,823.872 λ | 219,455,561.088 λ | 221,815,298.304 λ | 224,175,035.52 λ | 226,534,772.736 λ | 228,894,509.952 λ | 231,254,247.168 λ | 233,613,984.384 λ | 235,973,721.6 λ |
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 | lambdas | board feet | lambdas |
---|---|---|---|
1 | = 2359737.216 | 6 | = 14158423.296 |
2 | = 4719474.432 | 7 | = 16518160.512 |
3 | = 7079211.648 | 8 | = 18877897.728 |
4 | = 9438948.864 | 9 | = 21237634.944 |
5 | = 11798686.08 | 10 | = 23597372.16 |
Lambda (written λ, in lowercase) is a legitimate metric unit of volume equal to 10−9 m3, 1 cubic millimeter (mm3) or 1 microlitre (µL). Introduced by the BIPM in 1880, the lambda has been used in chemistry and in law for measuring volume, but its use is not recommended.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
lambda | λ | ≡ 1 mm3 | = 1×10−9 m3 | Metric system SI |
lambdas | board feet | lambdas | board feet |
---|---|---|---|
1 | = 4.2377600065786E-7 | 6 | = 2.5426560039472E-6 |
2 | = 8.4755200131573E-7 | 7 | = 2.966432004605E-6 |
3 | = 1.2713280019736E-6 | 8 | = 3.3902080052629E-6 |
4 | = 1.6951040026315E-6 | 9 | = 3.8139840059208E-6 |
5 | = 2.1188800032893E-6 | 10 | = 4.2377600065786E-6 |
board feet | lambdas |
---|---|
1 | = 2,359,737.216 |
4.2377600065786 × 10-7 | = 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 …) |