| 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 |
| point (Didot; European) | 67.5639999 pt | 135.1279999 pt | 202.6919998 pt | 270.2559997 pt | 337.8199997 pt | 405.3839996 pt | 472.9479995 pt | 540.5119995 pt | 608.0759994 pt | 675.6399993 pt | 743.2039993 pt | 810.7679992 pt | 878.3319991 pt | 945.8959991 pt | 1,013.4599990 pt | 1,081.0239989 pt | 1,148.5879989 pt | 1,216.1519988 pt | 1,283.7159987 pt | 1,351.2799986 pt | 1,418.8439986 pt | 1,486.4079985 pt | 1,553.9719984 pt | 1,621.5359984 pt | 1,689.0999983 pt | 1,756.6639982 pt | 1,824.2279982 pt | 1,891.7919981 pt | 1,959.3559980 pt | 2,026.9199980 pt | 2,094.4839979 pt | 2,162.0479978 pt | 2,229.6119978 pt | 2,297.1759977 pt | 2,364.7399976 pt | 2,432.3039976 pt | 2,499.8679975 pt | 2,567.4319974 pt | 2,634.9959974 pt | 2,702.5599973 pt | 2,770.1239972 pt | 2,837.6879972 pt | 2,905.2519971 pt | 2,972.8159970 pt | 3,040.3799970 pt | 3,107.9439969 pt | 3,175.5079968 pt | 3,243.0719968 pt | 3,310.6359967 pt | 3,378.1999966 pt | 3,445.7639966 pt | 3,513.3279965 pt | 3,580.8919964 pt | 3,648.4559964 pt | 3,716.0199963 pt | 3,783.5839962 pt | 3,851.1479961 pt | 3,918.7119961 pt | 3,986.2759960 pt | 4,053.8399959 pt | 4,121.4039959 pt | 4,188.9679958 pt | 4,256.5319957 pt | 4,324.0959957 pt | 4,391.6599956 pt | 4,459.2239955 pt | 4,526.7879955 pt | 4,594.3519954 pt | 4,661.9159953 pt | 4,729.4799953 pt | 4,797.0439952 pt | 4,864.6079951 pt | 4,932.1719951 pt | 4,999.7359950 pt | 5,067.2999949 pt | 5,134.8639949 pt | 5,202.4279948 pt | 5,269.9919947 pt | 5,337.5559947 pt | 5,405.1199946 pt | 5,472.6839945 pt | 5,540.2479945 pt | 5,607.8119944 pt | 5,675.3759943 pt | 5,742.9399943 pt | 5,810.5039942 pt | 5,878.0679941 pt | 5,945.6319941 pt | 6,013.1959940 pt | 6,080.7599939 pt | 6,148.3239939 pt | 6,215.8879938 pt | 6,283.4519937 pt | 6,351.0159936 pt | 6,418.5799936 pt | 6,486.1439935 pt | 6,553.7079934 pt | 6,621.2719934 pt | 6,688.8359933 pt | 6,756.3999932 pt |
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 | points (Didot; European) | inches | points (Didot; European) |
|---|---|---|---|
| 1 | ≈ 67.563999932436 | 4 | ≈ 270.25599972974 |
| 1.5 | ≈ 101.34599989865 | 4.5 | ≈ 304.03799969596 |
| 2 | ≈ 135.12799986487 | 5 | ≈ 337.81999966218 |
| 2.5 | ≈ 168.90999983109 | 5.5 | ≈ 371.6019996284 |
| 3 | ≈ 202.69199979731 | 6 | ≈ 405.38399959462 |
In typography, the point is the smallest unit of measure. It is used for measuring font size, leading, and other items on a printed page.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| point (Didot; European) | pt | ≡ 1⁄12 × 1⁄72 of pied du roi; | ≈ 0.00037597 m; | Other (Length) |
| points (Didot; European) | inches | points (Didot; European) | inches |
|---|---|---|---|
| 1 | ≈ 0.014800781496063 | 4 | ≈ 0.059203125984252 |
| 1.5 | ≈ 0.022201172244094 | 4.5 | ≈ 0.066603516732283 |
| 2 | ≈ 0.029601562992126 | 5 | ≈ 0.074003907480315 |
| 2.5 | ≈ 0.037001953740157 | 5.5 | ≈ 0.081404298228346 |
| 3 | ≈ 0.044402344488189 | 6 | ≈ 0.088804688976378 |
| inches | points (Didot; European) |
|---|---|
| 1 | ≈ 67.5639999 |
| 0.0148008 | ≈ 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 …) |