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 |
spat | 3.7593985 × 10-16 S | 7.518797 × 10-16 S | 1.12781955 × 10-15 S | 1.5037594 × 10-15 S | 1.87969925 × 10-15 S | 2.2556391 × 10-15 S | 2.63157895 × 10-15 S | 3.0075188 × 10-15 S | 3.38345865 × 10-15 S | 3.7593985 × 10-15 S | 4.13533835 × 10-15 S | 4.5112782 × 10-15 S | 4.88721805 × 10-15 S | 5.2631579 × 10-15 S | 5.63909775 × 10-15 S | 6.0150376 × 10-15 S | 6.39097745 × 10-15 S | 6.7669173 × 10-15 S | 7.14285715 × 10-15 S | 7.518797 × 10-15 S | 7.89473685 × 10-15 S | 8.2706767 × 10-15 S | 8.64661655 × 10-15 S | 9.0225564 × 10-15 S | 9.39849625 × 10-15 S | 9.7744361 × 10-15 S | 1.015037595 × 10-14 S | 1.05263158 × 10-14 S | 1.090225565 × 10-14 S | 1.12781955 × 10-14 S | 1.165413535 × 10-14 S | 1.20300752 × 10-14 S | 1.240601505 × 10-14 S | 1.27819549 × 10-14 S | 1.315789475 × 10-14 S | 1.35338346 × 10-14 S | 1.390977445 × 10-14 S | 1.42857143 × 10-14 S | 1.466165415 × 10-14 S | 1.5037594 × 10-14 S | 1.541353385 × 10-14 S | 1.57894737 × 10-14 S | 1.616541355 × 10-14 S | 1.65413534 × 10-14 S | 1.691729325 × 10-14 S | 1.72932331 × 10-14 S | 1.766917295 × 10-14 S | 1.80451128 × 10-14 S | 1.842105265 × 10-14 S | 1.87969925 × 10-14 S | 1.917293235 × 10-14 S | 1.95488722 × 10-14 S | 1.992481205 × 10-14 S | 2.03007519 × 10-14 S | 2.067669175 × 10-14 S | 2.10526316 × 10-14 S | 2.142857145 × 10-14 S | 2.18045113 × 10-14 S | 2.218045115 × 10-14 S | 2.2556391 × 10-14 S | 2.293233085 × 10-14 S | 2.33082707 × 10-14 S | 2.368421055 × 10-14 S | 2.40601504 × 10-14 S | 2.443609025 × 10-14 S | 2.48120301 × 10-14 S | 2.518796995 × 10-14 S | 2.55639098 × 10-14 S | 2.593984965 × 10-14 S | 2.63157895 × 10-14 S | 2.669172935 × 10-14 S | 2.70676692 × 10-14 S | 2.744360905 × 10-14 S | 2.78195489 × 10-14 S | 2.819548875 × 10-14 S | 2.85714286 × 10-14 S | 2.894736845 × 10-14 S | 2.93233083 × 10-14 S | 2.969924815 × 10-14 S | 3.0075188 × 10-14 S | 3.045112785 × 10-14 S | 3.08270677 × 10-14 S | 3.120300755 × 10-14 S | 3.15789474 × 10-14 S | 3.195488725 × 10-14 S | 3.23308271 × 10-14 S | 3.270676695 × 10-14 S | 3.30827068 × 10-14 S | 3.345864665 × 10-14 S | 3.38345865 × 10-14 S | 3.421052635 × 10-14 S | 3.45864662 × 10-14 S | 3.496240605 × 10-14 S | 3.53383459 × 10-14 S | 3.571428575 × 10-14 S | 3.60902256 × 10-14 S | 3.646616545 × 10-14 S | 3.68421053 × 10-14 S | 3.721804515 × 10-14 S | 3.7593985 × 10-14 S |
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) | spats | points (Didot; European) | spats |
---|---|---|---|
1 | ≈ 3.7593985E-16 | 4 | ≈ 1.5037594E-15 |
1.5 | ≈ 5.63909775E-16 | 4.5 | ≈ 1.691729325E-15 |
2 | ≈ 7.518797E-16 | 5 | ≈ 1.87969925E-15 |
2.5 | ≈ 9.39849625E-16 | 5.5 | ≈ 2.067669175E-15 |
3 | ≈ 1.12781955E-15 | 6 | ≈ 2.2556391E-15 |
The spat (symbol S) is also an obsolete unit of distance used in astronomy. It is equal to 1000000000 kilometres (1 Tm or 1012 m). It is about 6.6846 astronomical units (AU), 1.057×10−4 light-years or3.240×10−5 parsecs.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
spat | S | ≡ 1×1012 m | ≡ 1×1012 m | Science - Astronomy (Length) |
spats | points (Didot; European) | spats | points (Didot; European) |
---|---|---|---|
1 | ≈ 2.65999999734E+15 | 4 | ≈ 1.063999998936E+16 |
1.5 | ≈ 3.98999999601E+15 | 4.5 | ≈ 1.196999998803E+16 |
2 | ≈ 5.31999999468E+15 | 5 | ≈ 1.32999999867E+16 |
2.5 | ≈ 6.64999999335E+15 | 5.5 | ≈ 1.462999998537E+16 |
3 | ≈ 7.97999999202E+15 | 6 | ≈ 1.595999998404E+16 |
points (Didot; European) | spats |
---|---|
1 | ≈ 3.7593985 × 10-16 |
2.65999999734 × 1015 | ≈ 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 …) |