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 gallon | 0.5190696 gal (imp) | 1.0381392 gal (imp) | 1.5572089 gal (imp) | 2.0762785 gal (imp) | 2.5953481 gal (imp) | 3.1144177 gal (imp) | 3.6334874 gal (imp) | 4.1525570 gal (imp) | 4.6716266 gal (imp) | 5.1906962 gal (imp) | 5.7097658 gal (imp) | 6.2288355 gal (imp) | 6.7479051 gal (imp) | 7.2669747 gal (imp) | 7.7860443 gal (imp) | 8.3051139 gal (imp) | 8.8241836 gal (imp) | 9.3432532 gal (imp) | 9.8623228 gal (imp) | 10.3813924 gal (imp) | 10.9004621 gal (imp) | 11.4195317 gal (imp) | 11.9386013 gal (imp) | 12.4576709 gal (imp) | 12.9767405 gal (imp) | 13.4958102 gal (imp) | 14.0148798 gal (imp) | 14.5339494 gal (imp) | 15.0530190 gal (imp) | 15.5720886 gal (imp) | 16.0911583 gal (imp) | 16.6102279 gal (imp) | 17.1292975 gal (imp) | 17.6483671 gal (imp) | 18.1674368 gal (imp) | 18.6865064 gal (imp) | 19.2055760 gal (imp) | 19.7246456 gal (imp) | 20.2437152 gal (imp) | 20.7627849 gal (imp) | 21.2818545 gal (imp) | 21.8009241 gal (imp) | 22.3199937 gal (imp) | 22.8390633 gal (imp) | 23.3581330 gal (imp) | 23.8772026 gal (imp) | 24.3962722 gal (imp) | 24.9153418 gal (imp) | 25.4344115 gal (imp) | 25.9534811 gal (imp) | 26.4725507 gal (imp) | 26.9916203 gal (imp) | 27.5106899 gal (imp) | 28.0297596 gal (imp) | 28.5488292 gal (imp) | 29.0678988 gal (imp) | 29.5869684 gal (imp) | 30.1060381 gal (imp) | 30.6251077 gal (imp) | 31.1441773 gal (imp) | 31.6632469 gal (imp) | 32.1823165 gal (imp) | 32.7013862 gal (imp) | 33.2204558 gal (imp) | 33.7395254 gal (imp) | 34.2585950 gal (imp) | 34.7776646 gal (imp) | 35.2967343 gal (imp) | 35.8158039 gal (imp) | 36.3348735 gal (imp) | 36.8539431 gal (imp) | 37.3730128 gal (imp) | 37.8920824 gal (imp) | 38.4111520 gal (imp) | 38.9302216 gal (imp) | 39.4492912 gal (imp) | 39.9683609 gal (imp) | 40.4874305 gal (imp) | 41.0065001 gal (imp) | 41.5255697 gal (imp) | 42.0446393 gal (imp) | 42.5637090 gal (imp) | 43.0827786 gal (imp) | 43.6018482 gal (imp) | 44.1209178 gal (imp) | 44.6399875 gal (imp) | 45.1590571 gal (imp) | 45.6781267 gal (imp) | 46.1971963 gal (imp) | 46.7162659 gal (imp) | 47.2353356 gal (imp) | 47.7544052 gal (imp) | 48.2734748 gal (imp) | 48.7925444 gal (imp) | 49.3116141 gal (imp) | 49.8306837 gal (imp) | 50.3497533 gal (imp) | 50.8688229 gal (imp) | 51.3878925 gal (imp) | 51.9069622 gal (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 gallons | board feet | imperial gallons |
---|---|---|---|
1 | ≡ 0.5190696215869 | 6 | ≡ 3.1144177295214 |
2 | ≡ 1.0381392431738 | 7 | ≡ 3.6334873511083 |
3 | ≡ 1.5572088647607 | 8 | ≡ 4.1525569726952 |
4 | ≡ 2.0762784863476 | 9 | ≡ 4.6716265942821 |
5 | ≡ 2.5953481079345 | 10 | ≡ 5.190696215869 |
The imperial (UK) gallon, now defined as exactly 4.54609 litres (about 277.42 cubic inches), is used in some Commonwealth countries and was originally based on the volume of 10 pounds (approximately 4.54 kg) of water at 62 °F (17 °C). The imperial fluid ounce is defined as 1⁄160 of an imperial gallon; there are four quarts in a gallon, two pints in a quart, and 20 Imperial fluid ounces in an imperial pint.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
imperial gallon | gal (imp) | ≡ 4.54609 L | ≡ 4.54609×10−3 m3 | Imperial/US |
imperial gallons | board feet | imperial gallons | board feet |
---|---|---|---|
1 | ≡ 1.9265238388307 | 6 | ≡ 11.559143032984 |
2 | ≡ 3.8530476776614 | 7 | ≡ 13.485666871815 |
3 | ≡ 5.7795715164921 | 8 | ≡ 15.412190710646 |
4 | ≡ 7.7060953553228 | 9 | ≡ 17.338714549476 |
5 | ≡ 9.6326191941535 | 10 | ≡ 19.265238388307 |
board feet | imperial gallons |
---|---|
1 | ≡ 0.5190696 |
1.9265238 | ≡ 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 …) |