| drop (metric) | 1 drop (metric) | 2 drop (metric) | 3 drop (metric) | 4 drop (metric) | 5 drop (metric) | 6 drop (metric) | 7 drop (metric) | 8 drop (metric) | 9 drop (metric) | 10 drop (metric) | 11 drop (metric) | 12 drop (metric) | 13 drop (metric) | 14 drop (metric) | 15 drop (metric) | 16 drop (metric) | 17 drop (metric) | 18 drop (metric) | 19 drop (metric) | 20 drop (metric) | 21 drop (metric) | 22 drop (metric) | 23 drop (metric) | 24 drop (metric) | 25 drop (metric) | 26 drop (metric) | 27 drop (metric) | 28 drop (metric) | 29 drop (metric) | 30 drop (metric) | 31 drop (metric) | 32 drop (metric) | 33 drop (metric) | 34 drop (metric) | 35 drop (metric) | 36 drop (metric) | 37 drop (metric) | 38 drop (metric) | 39 drop (metric) | 40 drop (metric) | 41 drop (metric) | 42 drop (metric) | 43 drop (metric) | 44 drop (metric) | 45 drop (metric) | 46 drop (metric) | 47 drop (metric) | 48 drop (metric) | 49 drop (metric) | 50 drop (metric) | 51 drop (metric) | 52 drop (metric) | 53 drop (metric) | 54 drop (metric) | 55 drop (metric) | 56 drop (metric) | 57 drop (metric) | 58 drop (metric) | 59 drop (metric) | 60 drop (metric) | 61 drop (metric) | 62 drop (metric) | 63 drop (metric) | 64 drop (metric) | 65 drop (metric) | 66 drop (metric) | 67 drop (metric) | 68 drop (metric) | 69 drop (metric) | 70 drop (metric) | 71 drop (metric) | 72 drop (metric) | 73 drop (metric) | 74 drop (metric) | 75 drop (metric) | 76 drop (metric) | 77 drop (metric) | 78 drop (metric) | 79 drop (metric) | 80 drop (metric) | 81 drop (metric) | 82 drop (metric) | 83 drop (metric) | 84 drop (metric) | 85 drop (metric) | 86 drop (metric) | 87 drop (metric) | 88 drop (metric) | 89 drop (metric) | 90 drop (metric) | 91 drop (metric) | 92 drop (metric) | 93 drop (metric) | 94 drop (metric) | 95 drop (metric) | 96 drop (metric) | 97 drop (metric) | 98 drop (metric) | 99 drop (metric) | 100 drop (metric) |
| board foot | 2.1188800032893 × 10-5 fbm | 4.2377600065786 × 10-5 fbm | 6.3566400098679 × 10-5 fbm | 8.4755200131573 × 10-5 fbm | 0.0001059 fbm | 0.0001271 fbm | 0.0001483 fbm | 0.0001695 fbm | 0.0001907 fbm | 0.0002119 fbm | 0.0002331 fbm | 0.0002543 fbm | 0.0002755 fbm | 0.0002966 fbm | 0.0003178 fbm | 0.0003390 fbm | 0.0003602 fbm | 0.0003814 fbm | 0.0004026 fbm | 0.0004238 fbm | 0.0004450 fbm | 0.0004662 fbm | 0.0004873 fbm | 0.0005085 fbm | 0.0005297 fbm | 0.0005509 fbm | 0.0005721 fbm | 0.0005933 fbm | 0.0006145 fbm | 0.0006357 fbm | 0.0006569 fbm | 0.0006780 fbm | 0.0006992 fbm | 0.0007204 fbm | 0.0007416 fbm | 0.0007628 fbm | 0.0007840 fbm | 0.0008052 fbm | 0.0008264 fbm | 0.0008476 fbm | 0.0008687 fbm | 0.0008899 fbm | 0.0009111 fbm | 0.0009323 fbm | 0.0009535 fbm | 0.0009747 fbm | 0.0009959 fbm | 0.0010171 fbm | 0.0010383 fbm | 0.0010594 fbm | 0.0010806 fbm | 0.0011018 fbm | 0.0011230 fbm | 0.0011442 fbm | 0.0011654 fbm | 0.0011866 fbm | 0.0012078 fbm | 0.0012290 fbm | 0.0012501 fbm | 0.0012713 fbm | 0.0012925 fbm | 0.0013137 fbm | 0.0013349 fbm | 0.0013561 fbm | 0.0013773 fbm | 0.0013985 fbm | 0.0014196 fbm | 0.0014408 fbm | 0.0014620 fbm | 0.0014832 fbm | 0.0015044 fbm | 0.0015256 fbm | 0.0015468 fbm | 0.0015680 fbm | 0.0015892 fbm | 0.0016103 fbm | 0.0016315 fbm | 0.0016527 fbm | 0.0016739 fbm | 0.0016951 fbm | 0.0017163 fbm | 0.0017375 fbm | 0.0017587 fbm | 0.0017799 fbm | 0.0018010 fbm | 0.0018222 fbm | 0.0018434 fbm | 0.0018646 fbm | 0.0018858 fbm | 0.0019070 fbm | 0.0019282 fbm | 0.0019494 fbm | 0.0019706 fbm | 0.0019917 fbm | 0.0020129 fbm | 0.0020341 fbm | 0.0020553 fbm | 0.0020765 fbm | 0.0020977 fbm | 0.0021189 fbm |
The drop is an approximated unit of measure of volume, the amount dispensed as one drop from a dropper or drip chamber. It is often used in giving quantities of liquid drugs to patients, and occasionally in cooking.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| drop (metric) | ≡ 1⁄20 mL | = 50.0×10−9 m3 | Imperial/US |
| drops (metric) | board feet | drops (metric) | board feet |
|---|---|---|---|
| 1 | = 2.1188800032893E-5 | 6 | = 0.00012713280019736 |
| 2 | = 4.2377600065786E-5 | 7 | = 0.00014832160023025 |
| 3 | = 6.3566400098679E-5 | 8 | = 0.00016951040026315 |
| 4 | = 8.4755200131573E-5 | 9 | = 0.00019069920029604 |
| 5 | = 0.00010594400016447 | 10 | = 0.00021188800032893 |
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 | drops (metric) | board feet | drops (metric) |
|---|---|---|---|
| 1 | = 47194.74432 | 6 | = 283168.46592 |
| 2 | = 94389.48864 | 7 | = 330363.21024 |
| 3 | = 141584.23296 | 8 | = 377557.95456 |
| 4 | = 188778.97728 | 9 | = 424752.69888 |
| 5 | = 235973.7216 | 10 | = 471947.4432 |
| drops (metric) | board feet |
|---|---|
| 1 | = 2.1188800032893 × 10-5 |
| 47,194.74432 | = 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 …) |