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 (American, English) | 72.2720159 pt | 144.5440319 pt | 216.8160478 pt | 289.0880637 pt | 361.3600797 pt | 433.6320956 pt | 505.9041115 pt | 578.1761275 pt | 650.4481434 pt | 722.7201593 pt | 794.9921753 pt | 867.2641912 pt | 939.5362071 pt | 1,011.8082231 pt | 1,084.0802390 pt | 1,156.3522549 pt | 1,228.6242709 pt | 1,300.8962868 pt | 1,373.1683027 pt | 1,445.4403187 pt | 1,517.7123346 pt | 1,589.9843505 pt | 1,662.2563665 pt | 1,734.5283824 pt | 1,806.8003983 pt | 1,879.0724143 pt | 1,951.3444302 pt | 2,023.6164462 pt | 2,095.8884621 pt | 2,168.1604780 pt | 2,240.4324940 pt | 2,312.7045099 pt | 2,384.9765258 pt | 2,457.2485418 pt | 2,529.5205577 pt | 2,601.7925736 pt | 2,674.0645896 pt | 2,746.3366055 pt | 2,818.6086214 pt | 2,890.8806374 pt | 2,963.1526533 pt | 3,035.4246692 pt | 3,107.6966852 pt | 3,179.9687011 pt | 3,252.2407170 pt | 3,324.5127330 pt | 3,396.7847489 pt | 3,469.0567648 pt | 3,541.3287808 pt | 3,613.6007967 pt | 3,685.8728126 pt | 3,758.1448286 pt | 3,830.4168445 pt | 3,902.6888604 pt | 3,974.9608764 pt | 4,047.2328923 pt | 4,119.5049082 pt | 4,191.7769242 pt | 4,264.0489401 pt | 4,336.3209560 pt | 4,408.5929720 pt | 4,480.8649879 pt | 4,553.1370038 pt | 4,625.4090198 pt | 4,697.6810357 pt | 4,769.9530516 pt | 4,842.2250676 pt | 4,914.4970835 pt | 4,986.7690994 pt | 5,059.0411154 pt | 5,131.3131313 pt | 5,203.5851472 pt | 5,275.8571632 pt | 5,348.1291791 pt | 5,420.4011950 pt | 5,492.6732110 pt | 5,564.9452269 pt | 5,637.2172429 pt | 5,709.4892588 pt | 5,781.7612747 pt | 5,854.0332907 pt | 5,926.3053066 pt | 5,998.5773225 pt | 6,070.8493385 pt | 6,143.1213544 pt | 6,215.3933703 pt | 6,287.6653863 pt | 6,359.9374022 pt | 6,432.2094181 pt | 6,504.4814341 pt | 6,576.7534500 pt | 6,649.0254659 pt | 6,721.2974819 pt | 6,793.5694978 pt | 6,865.8415137 pt | 6,938.1135297 pt | 7,010.3855456 pt | 7,082.6575615 pt | 7,154.9295775 pt | 7,227.2015934 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 (American, English) | inches | points (American, English) |
---|---|---|---|
1 | ≈ 72.272015933988 | 4 | ≈ 289.08806373595 |
1.5 | ≈ 108.40802390098 | 4.5 | ≈ 325.22407170294 |
2 | ≈ 144.54403186798 | 5 | ≈ 361.36007966994 |
2.5 | ≈ 180.68003983497 | 5.5 | ≈ 397.49608763693 |
3 | ≈ 216.81604780196 | 6 | ≈ 433.63209560393 |
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 (American, English) | pt | ≡ 1⁄72.272 in | ≈ 0.000351450 m | Other (Length) |
points (American, English) | inches | points (American, English) | inches |
---|---|---|---|
1 | ≈ 0.013836614173228 | 4 | ≈ 0.055346456692913 |
1.5 | ≈ 0.020754921259843 | 4.5 | ≈ 0.062264763779528 |
2 | ≈ 0.027673228346457 | 5 | ≈ 0.069183070866142 |
2.5 | ≈ 0.034591535433071 | 5.5 | ≈ 0.076101377952756 |
3 | ≈ 0.041509842519685 | 6 | ≈ 0.08301968503937 |
inches | points (American, English) |
---|---|
1 | ≈ 72.2720159 |
0.0138366 | ≈ 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 …) |