| 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) |
| foot, metric | 0.0702816 mf | 0.1405632 mf | 0.2108449 mf | 0.2811265 mf | 0.3514081 mf | 0.4216897 mf | 0.4919713 mf | 0.5622530 mf | 0.6325346 mf | 0.7028162 mf | 0.7730978 mf | 0.8433795 mf | 0.9136611 mf | 0.9839427 mf | 1.0542243 mf | 1.1245059 mf | 1.1947876 mf | 1.2650692 mf | 1.3353508 mf | 1.4056324 mf | 1.4759140 mf | 1.5461957 mf | 1.6164773 mf | 1.6867589 mf | 1.7570405 mf | 1.8273221 mf | 1.8976038 mf | 1.9678854 mf | 2.0381670 mf | 2.1084486 mf | 2.1787303 mf | 2.2490119 mf | 2.3192935 mf | 2.3895751 mf | 2.4598567 mf | 2.5301384 mf | 2.6004200 mf | 2.6707016 mf | 2.7409832 mf | 2.8112648 mf | 2.8815465 mf | 2.9518281 mf | 3.0221097 mf | 3.0923913 mf | 3.1626729 mf | 3.2329546 mf | 3.3032362 mf | 3.3735178 mf | 3.4437994 mf | 3.5140810 mf | 3.5843627 mf | 3.6546443 mf | 3.7249259 mf | 3.7952075 mf | 3.8654892 mf | 3.9357708 mf | 4.0060524 mf | 4.0763340 mf | 4.1466156 mf | 4.2168973 mf | 4.2871789 mf | 4.3574605 mf | 4.4277421 mf | 4.4980237 mf | 4.5683054 mf | 4.6385870 mf | 4.7088686 mf | 4.7791502 mf | 4.8494318 mf | 4.9197135 mf | 4.9899951 mf | 5.0602767 mf | 5.1305583 mf | 5.2008400 mf | 5.2711216 mf | 5.3414032 mf | 5.4116848 mf | 5.4819664 mf | 5.5522481 mf | 5.6225297 mf | 5.6928113 mf | 5.7630929 mf | 5.8333745 mf | 5.9036562 mf | 5.9739378 mf | 6.0442194 mf | 6.1145010 mf | 6.1847826 mf | 6.2550643 mf | 6.3253459 mf | 6.3956275 mf | 6.4659091 mf | 6.5361908 mf | 6.6064724 mf | 6.6767540 mf | 6.7470356 mf | 6.8173172 mf | 6.8875989 mf | 6.9578805 mf | 7.0281621 mf |
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 | feet, metric | finger | feet, metric |
|---|---|---|---|
| 1 | ≈ 0.070281620996539 | 4 | ≈ 0.28112648398616 |
| 1.5 | ≈ 0.10542243149481 | 4.5 | ≈ 0.31626729448443 |
| 2 | ≈ 0.14056324199308 | 5 | ≈ 0.3514081049827 |
| 2.5 | ≈ 0.17570405249135 | 5.5 | ≈ 0.38654891548097 |
| 3 | ≈ 0.21084486298962 | 6 | ≈ 0.42168972597924 |
A metric foot is a nickname for a preferred number length of 3 basic modules (3 M), or 30 centimetres (11.811 in). The 30 cm metric ruler was a similar length to the traditional imperial one-foot ruler. A metric foot is 4.8 millimetres (0.189 in) shorter than an imperial foot.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| foot, metric | mf | ≡ √ 1⁄10 m | ≈ 0.31622776602 m | Metric system Non-SI |
| feet, metric | finger | feet, metric | finger |
|---|---|---|---|
| 1 | ≈ 14.228470912036 | 4 | ≈ 56.913883648144 |
| 1.5 | ≈ 21.342706368054 | 4.5 | ≈ 64.028119104162 |
| 2 | ≈ 28.456941824072 | 5 | ≈ 71.14235456018 |
| 2.5 | ≈ 35.57117728009 | 5.5 | ≈ 78.256590016198 |
| 3 | ≈ 42.685412736108 | 6 | ≈ 85.370825472216 |
| finger | feet, metric |
|---|---|
| 1 | ≈ 0.0702816 |
| 14.2284709 | ≈ 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 …) |