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 |
fifth | 3.1168831 fifth | 6.2337662 fifth | 9.3506494 fifth | 12.4675325 fifth | 15.5844156 fifth | 18.7012987 fifth | 21.8181818 fifth | 24.9350649 fifth | 28.0519481 fifth | 31.1688312 fifth | 34.2857143 fifth | 37.4025974 fifth | 40.5194805 fifth | 43.6363636 fifth | 46.7532468 fifth | 49.8701299 fifth | 52.9870130 fifth | 56.1038961 fifth | 59.2207792 fifth | 62.3376623 fifth | 65.4545455 fifth | 68.5714286 fifth | 71.6883117 fifth | 74.8051948 fifth | 77.9220779 fifth | 81.0389610 fifth | 84.1558442 fifth | 87.2727273 fifth | 90.3896104 fifth | 93.5064935 fifth | 96.6233766 fifth | 99.7402597 fifth | 102.8571429 fifth | 105.9740260 fifth | 109.0909091 fifth | 112.2077922 fifth | 115.3246753 fifth | 118.4415584 fifth | 121.5584416 fifth | 124.6753247 fifth | 127.7922078 fifth | 130.9090909 fifth | 134.0259740 fifth | 137.1428571 fifth | 140.2597403 fifth | 143.3766234 fifth | 146.4935065 fifth | 149.6103896 fifth | 152.7272727 fifth | 155.8441558 fifth | 158.9610390 fifth | 162.0779221 fifth | 165.1948052 fifth | 168.3116883 fifth | 171.4285714 fifth | 174.5454545 fifth | 177.6623377 fifth | 180.7792208 fifth | 183.8961039 fifth | 187.0129870 fifth | 190.1298701 fifth | 193.2467532 fifth | 196.3636364 fifth | 199.4805195 fifth | 202.5974026 fifth | 205.7142857 fifth | 208.8311688 fifth | 211.9480519 fifth | 215.0649351 fifth | 218.1818182 fifth | 221.2987013 fifth | 224.4155844 fifth | 227.5324675 fifth | 230.6493506 fifth | 233.7662338 fifth | 236.8831169 fifth | 240 fifth | 243.1168831 fifth | 246.2337662 fifth | 249.3506494 fifth | 252.4675325 fifth | 255.5844156 fifth | 258.7012987 fifth | 261.8181818 fifth | 264.9350649 fifth | 268.0519481 fifth | 271.1688312 fifth | 274.2857143 fifth | 277.4025974 fifth | 280.5194805 fifth | 283.6363636 fifth | 286.7532468 fifth | 289.8701299 fifth | 292.9870130 fifth | 296.1038961 fifth | 299.2207792 fifth | 302.3376623 fifth | 305.4545455 fifth | 308.5714286 fifth | 311.6883117 fifth |
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 | fifths | board feet | fifths |
---|---|---|---|
1 | = 3.1168831168831 | 6 | = 18.701298701299 |
2 | = 6.2337662337662 | 7 | = 21.818181818182 |
3 | = 9.3506493506494 | 8 | = 24.935064935065 |
4 | = 12.467532467532 | 9 | = 28.051948051948 |
5 | = 15.584415584416 | 10 | = 31.168831168831 |
A fifth is a unit of volume formerly used for distilled beverages in the United States, equal to one fifth of a US liquid gallon, 4⁄5 quart, or 25 3⁄5 US fluid ounces (757 ml); it has been superseded by the metric bottle size of 750 ml, sometimes called a metric fifth, which is the standard capacity of wine bottles world-wide and is approximately 1% smaller.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
fifth | ≡ 1⁄5 US gal | = 757.0823568×10−6 m3 | Imperial/US |
fifths | board feet | fifths | board feet |
---|---|---|---|
1 | = 0.32083333333333 | 6 | = 1.925 |
2 | = 0.64166666666667 | 7 | = 2.2458333333333 |
3 | = 0.9625 | 8 | = 2.5666666666667 |
4 | = 1.2833333333333 | 9 | = 2.8875 |
5 | = 1.6041666666667 | 10 | = 3.2083333333333 |
board feet | fifths |
---|---|
1 | = 3.1168831 |
0.3208333 | = 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 …) |