| finger | 1 finger (US) | 2 finger (US) | 3 finger (US) | 4 finger (US) | 5 finger (US) | 6 finger (US) | 7 finger (US) | 8 finger (US) | 9 finger (US) | 10 finger (US) | 11 finger (US) | 12 finger (US) | 13 finger (US) | 14 finger (US) | 15 finger (US) | 16 finger (US) | 17 finger (US) | 18 finger (US) | 19 finger (US) | 20 finger (US) | 21 finger (US) | 22 finger (US) | 23 finger (US) | 24 finger (US) | 25 finger (US) | 26 finger (US) | 27 finger (US) | 28 finger (US) | 29 finger (US) | 30 finger (US) | 31 finger (US) | 32 finger (US) | 33 finger (US) | 34 finger (US) | 35 finger (US) | 36 finger (US) | 37 finger (US) | 38 finger (US) | 39 finger (US) | 40 finger (US) | 41 finger (US) | 42 finger (US) | 43 finger (US) | 44 finger (US) | 45 finger (US) | 46 finger (US) | 47 finger (US) | 48 finger (US) | 49 finger (US) | 50 finger (US) | 51 finger (US) | 52 finger (US) | 53 finger (US) | 54 finger (US) | 55 finger (US) | 56 finger (US) | 57 finger (US) | 58 finger (US) | 59 finger (US) | 60 finger (US) | 61 finger (US) | 62 finger (US) | 63 finger (US) | 64 finger (US) | 65 finger (US) | 66 finger (US) | 67 finger (US) | 68 finger (US) | 69 finger (US) | 70 finger (US) | 71 finger (US) | 72 finger (US) | 73 finger (US) | 74 finger (US) | 75 finger (US) | 76 finger (US) | 77 finger (US) | 78 finger (US) | 79 finger (US) | 80 finger (US) | 81 finger (US) | 82 finger (US) | 83 finger (US) | 84 finger (US) | 85 finger (US) | 86 finger (US) | 87 finger (US) | 88 finger (US) | 89 finger (US) | 90 finger (US) | 91 finger (US) | 92 finger (US) | 93 finger (US) | 94 finger (US) | 95 finger (US) | 96 finger (US) | 97 finger (US) | 98 finger (US) | 99 finger (US) | 100 finger (US) |
| light-second | 7.4134620157789 × 10-11 light-second | 1.4826924031558 × 10-10 light-second | 2.2240386047337 × 10-10 light-second | 2.9653848063116 × 10-10 light-second | 3.7067310078895 × 10-10 light-second | 4.4480772094674 × 10-10 light-second | 5.1894234110453 × 10-10 light-second | 5.9307696126231 × 10-10 light-second | 6.672115814201 × 10-10 light-second | 7.4134620157789 × 10-10 light-second | 8.1548082173568 × 10-10 light-second | 8.8961544189347 × 10-10 light-second | 9.6375006205126 × 10-10 light-second | 1.0378846822091 × 10-9 light-second | 1.1120193023668 × 10-9 light-second | 1.1861539225246 × 10-9 light-second | 1.2602885426824 × 10-9 light-second | 1.3344231628402 × 10-9 light-second | 1.408557782998 × 10-9 light-second | 1.4826924031558 × 10-9 light-second | 1.5568270233136 × 10-9 light-second | 1.6309616434714 × 10-9 light-second | 1.7050962636292 × 10-9 light-second | 1.7792308837869 × 10-9 light-second | 1.8533655039447 × 10-9 light-second | 1.9275001241025 × 10-9 light-second | 2.0016347442603 × 10-9 light-second | 2.0757693644181 × 10-9 light-second | 2.1499039845759 × 10-9 light-second | 2.2240386047337 × 10-9 light-second | 2.2981732248915 × 10-9 light-second | 2.3723078450493 × 10-9 light-second | 2.446442465207 × 10-9 light-second | 2.5205770853648 × 10-9 light-second | 2.5947117055226 × 10-9 light-second | 2.6688463256804 × 10-9 light-second | 2.7429809458382 × 10-9 light-second | 2.817115565996 × 10-9 light-second | 2.8912501861538 × 10-9 light-second | 2.9653848063116 × 10-9 light-second | 3.0395194264694 × 10-9 light-second | 3.1136540466272 × 10-9 light-second | 3.1877886667849 × 10-9 light-second | 3.2619232869427 × 10-9 light-second | 3.3360579071005 × 10-9 light-second | 3.4101925272583 × 10-9 light-second | 3.4843271474161 × 10-9 light-second | 3.5584617675739 × 10-9 light-second | 3.6325963877317 × 10-9 light-second | 3.7067310078895 × 10-9 light-second | 3.7808656280473 × 10-9 light-second | 3.855000248205 × 10-9 light-second | 3.9291348683628 × 10-9 light-second | 4.0032694885206 × 10-9 light-second | 4.0774041086784 × 10-9 light-second | 4.1515387288362 × 10-9 light-second | 4.225673348994 × 10-9 light-second | 4.2998079691518 × 10-9 light-second | 4.3739425893096 × 10-9 light-second | 4.4480772094674 × 10-9 light-second | 4.5222118296251 × 10-9 light-second | 4.5963464497829 × 10-9 light-second | 4.6704810699407 × 10-9 light-second | 4.7446156900985 × 10-9 light-second | 4.8187503102563 × 10-9 light-second | 4.8928849304141 × 10-9 light-second | 4.9670195505719 × 10-9 light-second | 5.0411541707297 × 10-9 light-second | 5.1152887908875 × 10-9 light-second | 5.1894234110453 × 10-9 light-second | 5.263558031203 × 10-9 light-second | 5.3376926513608 × 10-9 light-second | 5.4118272715186 × 10-9 light-second | 5.4859618916764 × 10-9 light-second | 5.5600965118342 × 10-9 light-second | 5.634231131992 × 10-9 light-second | 5.7083657521498 × 10-9 light-second | 5.7825003723076 × 10-9 light-second | 5.8566349924654 × 10-9 light-second | 5.9307696126231 × 10-9 light-second | 6.0049042327809 × 10-9 light-second | 6.0790388529387 × 10-9 light-second | 6.1531734730965 × 10-9 light-second | 6.2273080932543 × 10-9 light-second | 6.3014427134121 × 10-9 light-second | 6.3755773335699 × 10-9 light-second | 6.4497119537277 × 10-9 light-second | 6.5238465738855 × 10-9 light-second | 6.5979811940432 × 10-9 light-second | 6.672115814201 × 10-9 light-second | 6.7462504343588 × 10-9 light-second | 6.8203850545166 × 10-9 light-second | 6.8945196746744 × 10-9 light-second | 6.9686542948322 × 10-9 light-second | 7.04278891499 × 10-9 light-second | 7.1169235351478 × 10-9 light-second | 7.1910581553056 × 10-9 light-second | 7.2651927754634 × 10-9 light-second | 7.3393273956211 × 10-9 light-second | 7.4134620157789 × 10-9 light-second |
A finger (sometimes fingerbreadth or finger's breadth) is any of several units of measurement that are approximately the width of an adult human finger, including:
The digit, also known as digitus or digitus transversus (Latin), dactyl (Greek) or dactylus, or finger's breadth — 3⁄4 of an inch or 1⁄16 of a foot.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| finger | finger (US) | ≡ 7⁄8 in | = 0.022225 m | Imperial/US |
| finger | light-seconds | finger | light-seconds |
|---|---|---|---|
| 1 | = 7.4134620157789E-11 | 4 | = 2.9653848063116E-10 |
| 1.5 | = 1.1120193023668E-10 | 4.5 | = 3.3360579071005E-10 |
| 2 | = 1.4826924031558E-10 | 5 | = 3.7067310078895E-10 |
| 2.5 | = 1.8533655039447E-10 | 5.5 | = 4.0774041086784E-10 |
| 3 | = 2.2240386047337E-10 | 6 | = 4.4480772094674E-10 |
The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in onesecond, and is equal to exactly 299792458 metres (just over 186282 miles).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| light-second | ≡ Distance light travels in one second in vacuum | ≡ 299 792 458 m | Science - Astronomy (Length) |
| light-seconds | finger | light-seconds | finger |
|---|---|---|---|
| 1 | = 13488974488.189 | 4 | = 53955897952.756 |
| 1.5 | = 20233461732.283 | 4.5 | = 60700385196.85 |
| 2 | = 26977948976.378 | 5 | = 67444872440.945 |
| 2.5 | = 33722436220.472 | 5.5 | = 74189359685.039 |
| 3 | = 40466923464.567 | 6 | = 80933846929.134 |
| finger | light-seconds |
|---|---|
| 1 | = 7.4134620157789 × 10-11 |
| 13,488,974,488.189 | = 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 …) |