inch | 1 in | 2 in | 3 in | 4 in | 5 in | 6 in | 7 in | 8 in | 9 in | 10 in | 11 in | 12 in | 13 in | 14 in | 15 in | 16 in | 17 in | 18 in | 19 in | 20 in | 21 in | 22 in | 23 in | 24 in | 25 in | 26 in | 27 in | 28 in | 29 in | 30 in | 31 in | 32 in | 33 in | 34 in | 35 in | 36 in | 37 in | 38 in | 39 in | 40 in | 41 in | 42 in | 43 in | 44 in | 45 in | 46 in | 47 in | 48 in | 49 in | 50 in | 51 in | 52 in | 53 in | 54 in | 55 in | 56 in | 57 in | 58 in | 59 in | 60 in | 61 in | 62 in | 63 in | 64 in | 65 in | 66 in | 67 in | 68 in | 69 in | 70 in | 71 in | 72 in | 73 in | 74 in | 75 in | 76 in | 77 in | 78 in | 79 in | 80 in | 81 in | 82 in | 83 in | 84 in | 85 in | 86 in | 87 in | 88 in | 89 in | 90 in | 91 in | 92 in | 93 in | 94 in | 95 in | 96 in | 97 in | 98 in | 99 in | 100 in |
rod | 0.0050505 rd | 0.0101010 rd | 0.0151515 rd | 0.0202020 rd | 0.0252525 rd | 0.0303030 rd | 0.0353535 rd | 0.0404040 rd | 0.0454545 rd | 0.0505051 rd | 0.0555556 rd | 0.0606061 rd | 0.0656566 rd | 0.0707071 rd | 0.0757576 rd | 0.0808081 rd | 0.0858586 rd | 0.0909091 rd | 0.0959596 rd | 0.1010101 rd | 0.1060606 rd | 0.1111111 rd | 0.1161616 rd | 0.1212121 rd | 0.1262626 rd | 0.1313131 rd | 0.1363636 rd | 0.1414141 rd | 0.1464646 rd | 0.1515152 rd | 0.1565657 rd | 0.1616162 rd | 0.1666667 rd | 0.1717172 rd | 0.1767677 rd | 0.1818182 rd | 0.1868687 rd | 0.1919192 rd | 0.1969697 rd | 0.2020202 rd | 0.2070707 rd | 0.2121212 rd | 0.2171717 rd | 0.2222222 rd | 0.2272727 rd | 0.2323232 rd | 0.2373737 rd | 0.2424242 rd | 0.2474747 rd | 0.2525253 rd | 0.2575758 rd | 0.2626263 rd | 0.2676768 rd | 0.2727273 rd | 0.2777778 rd | 0.2828283 rd | 0.2878788 rd | 0.2929293 rd | 0.2979798 rd | 0.3030303 rd | 0.3080808 rd | 0.3131313 rd | 0.3181818 rd | 0.3232323 rd | 0.3282828 rd | 0.3333333 rd | 0.3383838 rd | 0.3434343 rd | 0.3484848 rd | 0.3535354 rd | 0.3585859 rd | 0.3636364 rd | 0.3686869 rd | 0.3737374 rd | 0.3787879 rd | 0.3838384 rd | 0.3888889 rd | 0.3939394 rd | 0.3989899 rd | 0.4040404 rd | 0.4090909 rd | 0.4141414 rd | 0.4191919 rd | 0.4242424 rd | 0.4292929 rd | 0.4343434 rd | 0.4393939 rd | 0.4444444 rd | 0.4494949 rd | 0.4545455 rd | 0.4595960 rd | 0.4646465 rd | 0.4696970 rd | 0.4747475 rd | 0.4797980 rd | 0.4848485 rd | 0.4898990 rd | 0.4949495 rd | 0.5 rd | 0.5050505 rd |
The inch (abbreviation: in or ″) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to 1⁄36 yard but usually understood as 1⁄12 of a foot. Derived from the Roman uncia ("twelfth"), inch is also sometimes used to translate related units in other measurement systems, usually understood as deriving from the width of the human thumb.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
inch | in | ≡ 2.54 cm ≡ 1⁄36 yd ≡ 1⁄12 ft | ≡ 0.0254 m | Imperial/US |
inches | rods | inches | rods |
---|---|---|---|
1 | = 0.0050505050505051 | 4 | = 0.02020202020202 |
1.5 | = 0.0075757575757576 | 4.5 | = 0.022727272727273 |
2 | = 0.01010101010101 | 5 | = 0.025252525252525 |
2.5 | = 0.012626262626263 | 5.5 | = 0.027777777777778 |
3 | = 0.015151515151515 | 6 | = 0.03030303030303 |
The rod or perch or pole is a surveyors tool and unit of length equal to 5 1⁄2 yards, 16 1⁄2 feet, 1⁄320 of a statute mile or one-fourth of a surveyor's chain and 5.0292 meters.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
rod | rd | ≡ 16 1⁄2 ft | = 5.0292 m | Imperial/US |
rods | inches | rods | inches |
---|---|---|---|
1 | = 198 | 4 | = 792 |
1.5 | = 297 | 4.5 | = 891 |
2 | = 396 | 5 | = 990 |
2.5 | = 495 | 5.5 | = 1089 |
3 | = 594 | 6 | = 1188 |
inches | rods |
---|---|
1 | = 0.0050505 |
198 | = 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 …) |