| US gill | 1 gi (US) | 2 gi (US) | 3 gi (US) | 4 gi (US) | 5 gi (US) | 6 gi (US) | 7 gi (US) | 8 gi (US) | 9 gi (US) | 10 gi (US) | 11 gi (US) | 12 gi (US) | 13 gi (US) | 14 gi (US) | 15 gi (US) | 16 gi (US) | 17 gi (US) | 18 gi (US) | 19 gi (US) | 20 gi (US) | 21 gi (US) | 22 gi (US) | 23 gi (US) | 24 gi (US) | 25 gi (US) | 26 gi (US) | 27 gi (US) | 28 gi (US) | 29 gi (US) | 30 gi (US) | 31 gi (US) | 32 gi (US) | 33 gi (US) | 34 gi (US) | 35 gi (US) | 36 gi (US) | 37 gi (US) | 38 gi (US) | 39 gi (US) | 40 gi (US) | 41 gi (US) | 42 gi (US) | 43 gi (US) | 44 gi (US) | 45 gi (US) | 46 gi (US) | 47 gi (US) | 48 gi (US) | 49 gi (US) | 50 gi (US) | 51 gi (US) | 52 gi (US) | 53 gi (US) | 54 gi (US) | 55 gi (US) | 56 gi (US) | 57 gi (US) | 58 gi (US) | 59 gi (US) | 60 gi (US) | 61 gi (US) | 62 gi (US) | 63 gi (US) | 64 gi (US) | 65 gi (US) | 66 gi (US) | 67 gi (US) | 68 gi (US) | 69 gi (US) | 70 gi (US) | 71 gi (US) | 72 gi (US) | 73 gi (US) | 74 gi (US) | 75 gi (US) | 76 gi (US) | 77 gi (US) | 78 gi (US) | 79 gi (US) | 80 gi (US) | 81 gi (US) | 82 gi (US) | 83 gi (US) | 84 gi (US) | 85 gi (US) | 86 gi (US) | 87 gi (US) | 88 gi (US) | 89 gi (US) | 90 gi (US) | 91 gi (US) | 92 gi (US) | 93 gi (US) | 94 gi (US) | 95 gi (US) | 96 gi (US) | 97 gi (US) | 98 gi (US) | 99 gi (US) | 100 gi (US) |
| board foot | 0.0501302 fbm | 0.1002604 fbm | 0.1503906 fbm | 0.2005208 fbm | 0.2506510 fbm | 0.3007813 fbm | 0.3509115 fbm | 0.4010417 fbm | 0.4511719 fbm | 0.5013021 fbm | 0.5514323 fbm | 0.6015625 fbm | 0.6516927 fbm | 0.7018229 fbm | 0.7519531 fbm | 0.8020833 fbm | 0.8522135 fbm | 0.9023438 fbm | 0.9524740 fbm | 1.0026042 fbm | 1.0527344 fbm | 1.1028646 fbm | 1.1529948 fbm | 1.203125 fbm | 1.2532552 fbm | 1.3033854 fbm | 1.3535156 fbm | 1.4036458 fbm | 1.4537760 fbm | 1.5039063 fbm | 1.5540365 fbm | 1.6041667 fbm | 1.6542969 fbm | 1.7044271 fbm | 1.7545573 fbm | 1.8046875 fbm | 1.8548177 fbm | 1.9049479 fbm | 1.9550781 fbm | 2.0052083 fbm | 2.0553385 fbm | 2.1054688 fbm | 2.1555990 fbm | 2.2057292 fbm | 2.2558594 fbm | 2.3059896 fbm | 2.3561198 fbm | 2.40625 fbm | 2.4563802 fbm | 2.5065104 fbm | 2.5566406 fbm | 2.6067708 fbm | 2.6569010 fbm | 2.7070313 fbm | 2.7571615 fbm | 2.8072917 fbm | 2.8574219 fbm | 2.9075521 fbm | 2.9576823 fbm | 3.0078125 fbm | 3.0579427 fbm | 3.1080729 fbm | 3.1582031 fbm | 3.2083333 fbm | 3.2584635 fbm | 3.3085938 fbm | 3.3587240 fbm | 3.4088542 fbm | 3.4589844 fbm | 3.5091146 fbm | 3.5592448 fbm | 3.609375 fbm | 3.6595052 fbm | 3.7096354 fbm | 3.7597656 fbm | 3.8098958 fbm | 3.8600260 fbm | 3.9101563 fbm | 3.9602865 fbm | 4.0104167 fbm | 4.0605469 fbm | 4.1106771 fbm | 4.1608073 fbm | 4.2109375 fbm | 4.2610677 fbm | 4.3111979 fbm | 4.3613281 fbm | 4.4114583 fbm | 4.4615885 fbm | 4.5117188 fbm | 4.5618490 fbm | 4.6119792 fbm | 4.6621094 fbm | 4.7122396 fbm | 4.7623698 fbm | 4.8125 fbm | 4.8626302 fbm | 4.9127604 fbm | 4.9628906 fbm | 5.0130208 fbm |
| 1 US gill | ≡ 4 US fl oz |
| ≡ 1⁄32 US gallon | |
| ≡ 1⁄4 US pint | |
| ≡ 1⁄2 US cup | |
| ≡ 8 tablespoons | |
| ≡ 24 teaspoons | |
| ≡ 32 US fluid drams | |
| ≡ 7 7⁄32 in3 | |
| ≡ 118.29411825 ml | |
| ≈ 118 ml | |
| ≈ 5⁄6 imperial gills |
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| US gill | gi (US) | ≡ 4 US fl oz | = 118.29411825×10−6 m3 | Imperial/US |
| US gills | board feet | US gills | board feet |
|---|---|---|---|
| 1 | = 0.050130208333333 | 6 | = 0.30078125 |
| 2 | = 0.10026041666667 | 7 | = 0.35091145833333 |
| 3 | = 0.150390625 | 8 | = 0.40104166666667 |
| 4 | = 0.20052083333333 | 9 | = 0.451171875 |
| 5 | = 0.25065104166667 | 10 | = 0.50130208333333 |
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 | US gills | board feet | US gills |
|---|---|---|---|
| 1 | = 19.948051948052 | 6 | = 119.68831168831 |
| 2 | = 39.896103896104 | 7 | = 139.63636363636 |
| 3 | = 59.844155844156 | 8 | = 159.58441558442 |
| 4 | = 79.792207792208 | 9 | = 179.53246753247 |
| 5 | = 99.74025974026 | 10 | = 199.48051948052 |
| US gills | board feet |
|---|---|
| 1 | = 0.0501302 |
| 19.9480519 | = 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 …) |