| drop (medical) | 1 drop (medical) | 2 drop (medical) | 3 drop (medical) | 4 drop (medical) | 5 drop (medical) | 6 drop (medical) | 7 drop (medical) | 8 drop (medical) | 9 drop (medical) | 10 drop (medical) | 11 drop (medical) | 12 drop (medical) | 13 drop (medical) | 14 drop (medical) | 15 drop (medical) | 16 drop (medical) | 17 drop (medical) | 18 drop (medical) | 19 drop (medical) | 20 drop (medical) | 21 drop (medical) | 22 drop (medical) | 23 drop (medical) | 24 drop (medical) | 25 drop (medical) | 26 drop (medical) | 27 drop (medical) | 28 drop (medical) | 29 drop (medical) | 30 drop (medical) | 31 drop (medical) | 32 drop (medical) | 33 drop (medical) | 34 drop (medical) | 35 drop (medical) | 36 drop (medical) | 37 drop (medical) | 38 drop (medical) | 39 drop (medical) | 40 drop (medical) | 41 drop (medical) | 42 drop (medical) | 43 drop (medical) | 44 drop (medical) | 45 drop (medical) | 46 drop (medical) | 47 drop (medical) | 48 drop (medical) | 49 drop (medical) | 50 drop (medical) | 51 drop (medical) | 52 drop (medical) | 53 drop (medical) | 54 drop (medical) | 55 drop (medical) | 56 drop (medical) | 57 drop (medical) | 58 drop (medical) | 59 drop (medical) | 60 drop (medical) | 61 drop (medical) | 62 drop (medical) | 63 drop (medical) | 64 drop (medical) | 65 drop (medical) | 66 drop (medical) | 67 drop (medical) | 68 drop (medical) | 69 drop (medical) | 70 drop (medical) | 71 drop (medical) | 72 drop (medical) | 73 drop (medical) | 74 drop (medical) | 75 drop (medical) | 76 drop (medical) | 77 drop (medical) | 78 drop (medical) | 79 drop (medical) | 80 drop (medical) | 81 drop (medical) | 82 drop (medical) | 83 drop (medical) | 84 drop (medical) | 85 drop (medical) | 86 drop (medical) | 87 drop (medical) | 88 drop (medical) | 89 drop (medical) | 90 drop (medical) | 91 drop (medical) | 92 drop (medical) | 93 drop (medical) | 94 drop (medical) | 95 drop (medical) | 96 drop (medical) | 97 drop (medical) | 98 drop (medical) | 99 drop (medical) | 100 drop (medical) |
| board foot | 3.5314666721474 × 10-5 fbm | 7.0629333442949 × 10-5 fbm | 0.0001059 fbm | 0.0001413 fbm | 0.0001766 fbm | 0.0002119 fbm | 0.0002472 fbm | 0.0002825 fbm | 0.0003178 fbm | 0.0003531 fbm | 0.0003885 fbm | 0.0004238 fbm | 0.0004591 fbm | 0.0004944 fbm | 0.0005297 fbm | 0.0005650 fbm | 0.0006003 fbm | 0.0006357 fbm | 0.0006710 fbm | 0.0007063 fbm | 0.0007416 fbm | 0.0007769 fbm | 0.0008122 fbm | 0.0008476 fbm | 0.0008829 fbm | 0.0009182 fbm | 0.0009535 fbm | 0.0009888 fbm | 0.0010241 fbm | 0.0010594 fbm | 0.0010948 fbm | 0.0011301 fbm | 0.0011654 fbm | 0.0012007 fbm | 0.0012360 fbm | 0.0012713 fbm | 0.0013066 fbm | 0.0013420 fbm | 0.0013773 fbm | 0.0014126 fbm | 0.0014479 fbm | 0.0014832 fbm | 0.0015185 fbm | 0.0015538 fbm | 0.0015892 fbm | 0.0016245 fbm | 0.0016598 fbm | 0.0016951 fbm | 0.0017304 fbm | 0.0017657 fbm | 0.0018010 fbm | 0.0018364 fbm | 0.0018717 fbm | 0.0019070 fbm | 0.0019423 fbm | 0.0019776 fbm | 0.0020129 fbm | 0.0020483 fbm | 0.0020836 fbm | 0.0021189 fbm | 0.0021542 fbm | 0.0021895 fbm | 0.0022248 fbm | 0.0022601 fbm | 0.0022955 fbm | 0.0023308 fbm | 0.0023661 fbm | 0.0024014 fbm | 0.0024367 fbm | 0.0024720 fbm | 0.0025073 fbm | 0.0025427 fbm | 0.0025780 fbm | 0.0026133 fbm | 0.0026486 fbm | 0.0026839 fbm | 0.0027192 fbm | 0.0027545 fbm | 0.0027899 fbm | 0.0028252 fbm | 0.0028605 fbm | 0.0028958 fbm | 0.0029311 fbm | 0.0029664 fbm | 0.0030017 fbm | 0.0030371 fbm | 0.0030724 fbm | 0.0031077 fbm | 0.0031430 fbm | 0.0031783 fbm | 0.0032136 fbm | 0.0032489 fbm | 0.0032843 fbm | 0.0033196 fbm | 0.0033549 fbm | 0.0033902 fbm | 0.0034255 fbm | 0.0034608 fbm | 0.0034962 fbm | 0.0035315 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 (medical) | ≡ 1⁄12 ml | = 83.3×10−9 m3 | Imperial/US |
| drops (medical) | board feet | drops (medical) | board feet |
|---|---|---|---|
| 1 | = 3.5314666721474E-5 | 6 | = 0.00021188800032885 |
| 2 | = 7.0629333442949E-5 | 7 | = 0.00024720266705032 |
| 3 | = 0.00010594400016442 | 8 | = 0.0002825173337718 |
| 4 | = 0.0001412586668859 | 9 | = 0.00031783200049327 |
| 5 | = 0.00017657333360737 | 10 | = 0.00035314666721474 |
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 (medical) | board feet | drops (medical) |
|---|---|---|---|
| 1 | = 28316.846592011 | 6 | = 169901.07955207 |
| 2 | = 56633.693184023 | 7 | = 198217.92614408 |
| 3 | = 84950.539776034 | 8 | = 226534.77273609 |
| 4 | = 113267.38636805 | 9 | = 254851.6193281 |
| 5 | = 141584.23296006 | 10 | = 283168.46592011 |
| drops (medical) | board feet |
|---|---|
| 1 | = 3.5314666721474 × 10-5 |
| 28,316.8465920 | = 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 …) |