point (Didot; European) | 1 pt | 2 pt | 3 pt | 4 pt | 5 pt | 6 pt | 7 pt | 8 pt | 9 pt | 10 pt | 11 pt | 12 pt | 13 pt | 14 pt | 15 pt | 16 pt | 17 pt | 18 pt | 19 pt | 20 pt | 21 pt | 22 pt | 23 pt | 24 pt | 25 pt | 26 pt | 27 pt | 28 pt | 29 pt | 30 pt | 31 pt | 32 pt | 33 pt | 34 pt | 35 pt | 36 pt | 37 pt | 38 pt | 39 pt | 40 pt | 41 pt | 42 pt | 43 pt | 44 pt | 45 pt | 46 pt | 47 pt | 48 pt | 49 pt | 50 pt | 51 pt | 52 pt | 53 pt | 54 pt | 55 pt | 56 pt | 57 pt | 58 pt | 59 pt | 60 pt | 61 pt | 62 pt | 63 pt | 64 pt | 65 pt | 66 pt | 67 pt | 68 pt | 69 pt | 70 pt | 71 pt | 72 pt | 73 pt | 74 pt | 75 pt | 76 pt | 77 pt | 78 pt | 79 pt | 80 pt | 81 pt | 82 pt | 83 pt | 84 pt | 85 pt | 86 pt | 87 pt | 88 pt | 89 pt | 90 pt | 91 pt | 92 pt | 93 pt | 94 pt | 95 pt | 96 pt | 97 pt | 98 pt | 99 pt | 100 pt |
chain | 1.8687818265692 × 10-5 ch | 3.7375636531384 × 10-5 ch | 5.6063454797075 × 10-5 ch | 7.4751273062767 × 10-5 ch | 9.3439091328459 × 10-5 ch | 0.0001121 ch | 0.0001308 ch | 0.0001495 ch | 0.0001682 ch | 0.0001869 ch | 0.0002056 ch | 0.0002243 ch | 0.0002429 ch | 0.0002616 ch | 0.0002803 ch | 0.0002990 ch | 0.0003177 ch | 0.0003364 ch | 0.0003551 ch | 0.0003738 ch | 0.0003924 ch | 0.0004111 ch | 0.0004298 ch | 0.0004485 ch | 0.0004672 ch | 0.0004859 ch | 0.0005046 ch | 0.0005233 ch | 0.0005419 ch | 0.0005606 ch | 0.0005793 ch | 0.0005980 ch | 0.0006167 ch | 0.0006354 ch | 0.0006541 ch | 0.0006728 ch | 0.0006914 ch | 0.0007101 ch | 0.0007288 ch | 0.0007475 ch | 0.0007662 ch | 0.0007849 ch | 0.0008036 ch | 0.0008223 ch | 0.0008410 ch | 0.0008596 ch | 0.0008783 ch | 0.0008970 ch | 0.0009157 ch | 0.0009344 ch | 0.0009531 ch | 0.0009718 ch | 0.0009905 ch | 0.0010091 ch | 0.0010278 ch | 0.0010465 ch | 0.0010652 ch | 0.0010839 ch | 0.0011026 ch | 0.0011213 ch | 0.0011400 ch | 0.0011586 ch | 0.0011773 ch | 0.0011960 ch | 0.0012147 ch | 0.0012334 ch | 0.0012521 ch | 0.0012708 ch | 0.0012895 ch | 0.0013081 ch | 0.0013268 ch | 0.0013455 ch | 0.0013642 ch | 0.0013829 ch | 0.0014016 ch | 0.0014203 ch | 0.0014390 ch | 0.0014576 ch | 0.0014763 ch | 0.0014950 ch | 0.0015137 ch | 0.0015324 ch | 0.0015511 ch | 0.0015698 ch | 0.0015885 ch | 0.0016072 ch | 0.0016258 ch | 0.0016445 ch | 0.0016632 ch | 0.0016819 ch | 0.0017006 ch | 0.0017193 ch | 0.0017380 ch | 0.0017567 ch | 0.0017753 ch | 0.0017940 ch | 0.0018127 ch | 0.0018314 ch | 0.0018501 ch | 0.0018688 ch |
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) | chains | points (Didot; European) | chains |
---|---|---|---|
1 | ≈ 1.8687818265692E-5 | 4 | ≈ 7.4751273062767E-5 |
1.5 | ≈ 2.8031727398538E-5 | 4.5 | ≈ 8.4095182195613E-5 |
2 | ≈ 3.7375636531384E-5 | 5 | ≈ 9.3439091328459E-5 |
2.5 | ≈ 4.671954566423E-5 | 5.5 | ≈ 0.00010278300046131 |
3 | ≈ 5.6063454797075E-5 | 6 | ≈ 0.00011212690959415 |
A chain is a unit of length. It measures 66 feet, or 22 yards, or 100 links, or 4 rods (20.1168 m). There are 10 chains in a furlong, and 80 chains in one statute mile. An acre is the area of 10 square chains (that is, an area of one chain by one furlong). The chain has been used for several centuries in Britain and in some other countries influenced by British practice.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
chain | ch | ≡ 66 ft (US) ≡ 4 rods | ≈ 20.11684 m | Imperial/US |
chains | points (Didot; European) | chains | points (Didot; European) |
---|---|---|---|
1 | ≈ 53510.794346489 | 4 | ≈ 214043.17738596 |
1.5 | ≈ 80266.191519734 | 4.5 | ≈ 240798.5745592 |
2 | ≈ 107021.58869298 | 5 | ≈ 267553.97173245 |
2.5 | ≈ 133776.98586622 | 5.5 | ≈ 294309.36890569 |
3 | ≈ 160532.38303947 | 6 | ≈ 321064.76607894 |
points (Didot; European) | chains |
---|---|
1 | ≈ 1.8687818265692 × 10-5 |
53,510.7943465 | ≈ 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 …) |