| 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) |
| spat | 2.2225 × 10-14 S | 4.445 × 10-14 S | 6.6675 × 10-14 S | 8.89 × 10-14 S | 1.11125 × 10-13 S | 1.3335 × 10-13 S | 1.55575 × 10-13 S | 1.778 × 10-13 S | 2.00025 × 10-13 S | 2.2225 × 10-13 S | 2.44475 × 10-13 S | 2.667 × 10-13 S | 2.88925 × 10-13 S | 3.1115 × 10-13 S | 3.33375 × 10-13 S | 3.556 × 10-13 S | 3.77825 × 10-13 S | 4.0005 × 10-13 S | 4.22275 × 10-13 S | 4.445 × 10-13 S | 4.66725 × 10-13 S | 4.8895 × 10-13 S | 5.11175 × 10-13 S | 5.334 × 10-13 S | 5.55625 × 10-13 S | 5.7785 × 10-13 S | 6.00075 × 10-13 S | 6.223 × 10-13 S | 6.44525 × 10-13 S | 6.6675 × 10-13 S | 6.88975 × 10-13 S | 7.112 × 10-13 S | 7.33425 × 10-13 S | 7.5565 × 10-13 S | 7.77875 × 10-13 S | 8.001 × 10-13 S | 8.22325 × 10-13 S | 8.4455 × 10-13 S | 8.66775 × 10-13 S | 8.89 × 10-13 S | 9.11225 × 10-13 S | 9.3345 × 10-13 S | 9.55675 × 10-13 S | 9.779 × 10-13 S | 1.000125 × 10-12 S | 1.02235 × 10-12 S | 1.044575 × 10-12 S | 1.0668 × 10-12 S | 1.089025 × 10-12 S | 1.11125 × 10-12 S | 1.133475 × 10-12 S | 1.1557 × 10-12 S | 1.177925 × 10-12 S | 1.20015 × 10-12 S | 1.222375 × 10-12 S | 1.2446 × 10-12 S | 1.266825 × 10-12 S | 1.28905 × 10-12 S | 1.311275 × 10-12 S | 1.3335 × 10-12 S | 1.355725 × 10-12 S | 1.37795 × 10-12 S | 1.400175 × 10-12 S | 1.4224 × 10-12 S | 1.444625 × 10-12 S | 1.46685 × 10-12 S | 1.489075 × 10-12 S | 1.5113 × 10-12 S | 1.533525 × 10-12 S | 1.55575 × 10-12 S | 1.577975 × 10-12 S | 1.6002 × 10-12 S | 1.622425 × 10-12 S | 1.64465 × 10-12 S | 1.666875 × 10-12 S | 1.6891 × 10-12 S | 1.711325 × 10-12 S | 1.73355 × 10-12 S | 1.755775 × 10-12 S | 1.778 × 10-12 S | 1.800225 × 10-12 S | 1.82245 × 10-12 S | 1.844675 × 10-12 S | 1.8669 × 10-12 S | 1.889125 × 10-12 S | 1.91135 × 10-12 S | 1.933575 × 10-12 S | 1.9558 × 10-12 S | 1.978025 × 10-12 S | 2.00025 × 10-12 S | 2.022475 × 10-12 S | 2.0447 × 10-12 S | 2.066925 × 10-12 S | 2.08915 × 10-12 S | 2.111375 × 10-12 S | 2.1336 × 10-12 S | 2.155825 × 10-12 S | 2.17805 × 10-12 S | 2.200275 × 10-12 S | 2.2225 × 10-12 S |
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 | spats | finger | spats |
|---|---|---|---|
| 1 | = 2.2225E-14 | 4 | = 8.89E-14 |
| 1.5 | = 3.33375E-14 | 4.5 | = 1.000125E-13 |
| 2 | = 4.445E-14 | 5 | = 1.11125E-13 |
| 2.5 | = 5.55625E-14 | 5.5 | = 1.222375E-13 |
| 3 | = 6.6675E-14 | 6 | = 1.3335E-13 |
The spat (symbol S) is also an obsolete unit of distance used in astronomy. It is equal to 1000000000 kilometres (1 Tm or 1012 m). It is about 6.6846 astronomical units (AU), 1.057×10−4 light-years or3.240×10−5 parsecs.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| spat | S | ≡ 1×1012 m | ≡ 1×1012 m | Science - Astronomy (Length) |
| spats | finger | spats | finger |
|---|---|---|---|
| 1 | = 44994375703037 | 4 | = 1.7997750281215E+14 |
| 1.5 | = 67491563554556 | 4.5 | = 2.0247469066367E+14 |
| 2 | = 89988751406074 | 5 | = 2.2497187851519E+14 |
| 2.5 | = 1.1248593925759E+14 | 5.5 | = 2.474690663667E+14 |
| 3 | = 1.3498312710911E+14 | 6 | = 2.6996625421822E+14 |
| finger | spats |
|---|---|
| 1 | = 2.2225 × 10-14 |
| 44 994 375 703 037 | = 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 …) |