| nanometer | 1 nm | 2 nm | 3 nm | 4 nm | 5 nm | 6 nm | 7 nm | 8 nm | 9 nm | 10 nm | 11 nm | 12 nm | 13 nm | 14 nm | 15 nm | 16 nm | 17 nm | 18 nm | 19 nm | 20 nm | 21 nm | 22 nm | 23 nm | 24 nm | 25 nm | 26 nm | 27 nm | 28 nm | 29 nm | 30 nm | 31 nm | 32 nm | 33 nm | 34 nm | 35 nm | 36 nm | 37 nm | 38 nm | 39 nm | 40 nm | 41 nm | 42 nm | 43 nm | 44 nm | 45 nm | 46 nm | 47 nm | 48 nm | 49 nm | 50 nm | 51 nm | 52 nm | 53 nm | 54 nm | 55 nm | 56 nm | 57 nm | 58 nm | 59 nm | 60 nm | 61 nm | 62 nm | 63 nm | 64 nm | 65 nm | 66 nm | 67 nm | 68 nm | 69 nm | 70 nm | 71 nm | 72 nm | 73 nm | 74 nm | 75 nm | 76 nm | 77 nm | 78 nm | 79 nm | 80 nm | 81 nm | 82 nm | 83 nm | 84 nm | 85 nm | 86 nm | 87 nm | 88 nm | 89 nm | 90 nm | 91 nm | 92 nm | 93 nm | 94 nm | 95 nm | 96 nm | 97 nm | 98 nm | 99 nm | 100 nm |
| point (Didot; European) | 2.65999999734 × 10-6 pt | 5.31999999468 × 10-6 pt | 7.97999999202 × 10-6 pt | 1.063999998936 × 10-5 pt | 1.32999999867 × 10-5 pt | 1.595999998404 × 10-5 pt | 1.861999998138 × 10-5 pt | 2.127999997872 × 10-5 pt | 2.393999997606 × 10-5 pt | 2.65999999734 × 10-5 pt | 2.925999997074 × 10-5 pt | 3.191999996808 × 10-5 pt | 3.457999996542 × 10-5 pt | 3.723999996276 × 10-5 pt | 3.98999999601 × 10-5 pt | 4.255999995744 × 10-5 pt | 4.521999995478 × 10-5 pt | 4.787999995212 × 10-5 pt | 5.053999994946 × 10-5 pt | 5.31999999468 × 10-5 pt | 5.585999994414 × 10-5 pt | 5.851999994148 × 10-5 pt | 6.117999993882 × 10-5 pt | 6.383999993616 × 10-5 pt | 6.64999999335 × 10-5 pt | 6.915999993084 × 10-5 pt | 7.181999992818 × 10-5 pt | 7.447999992552 × 10-5 pt | 7.713999992286 × 10-5 pt | 7.97999999202 × 10-5 pt | 8.245999991754 × 10-5 pt | 8.511999991488 × 10-5 pt | 8.777999991222 × 10-5 pt | 9.043999990956 × 10-5 pt | 9.30999999069 × 10-5 pt | 9.575999990424 × 10-5 pt | 9.841999990158 × 10-5 pt | 0.0001011 pt | 0.0001037 pt | 0.0001064 pt | 0.0001091 pt | 0.0001117 pt | 0.0001144 pt | 0.0001170 pt | 0.0001197 pt | 0.0001224 pt | 0.0001250 pt | 0.0001277 pt | 0.0001303 pt | 0.0001330 pt | 0.0001357 pt | 0.0001383 pt | 0.0001410 pt | 0.0001436 pt | 0.0001463 pt | 0.0001490 pt | 0.0001516 pt | 0.0001543 pt | 0.0001569 pt | 0.0001596 pt | 0.0001623 pt | 0.0001649 pt | 0.0001676 pt | 0.0001702 pt | 0.0001729 pt | 0.0001756 pt | 0.0001782 pt | 0.0001809 pt | 0.0001835 pt | 0.0001862 pt | 0.0001889 pt | 0.0001915 pt | 0.0001942 pt | 0.0001968 pt | 0.0001995 pt | 0.0002022 pt | 0.0002048 pt | 0.0002075 pt | 0.0002101 pt | 0.0002128 pt | 0.0002155 pt | 0.0002181 pt | 0.0002208 pt | 0.0002234 pt | 0.0002261 pt | 0.0002288 pt | 0.0002314 pt | 0.0002341 pt | 0.0002367 pt | 0.0002394 pt | 0.0002421 pt | 0.0002447 pt | 0.0002474 pt | 0.0002500 pt | 0.0002527 pt | 0.0002554 pt | 0.0002580 pt | 0.0002607 pt | 0.0002633 pt | 0.0002660 pt |
The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth of a metre (0.000000001 m). The name combines the SI prefix nano- (from the Ancient Greek νάνος, nanos, "dwarf") with the parent unit name metre (from Greek μέτρον, metrοn, "unit of measurement"). It can be written in scientific notation as 1×10−9 m, in engineering notation as 1 E−9 m, and is simply 1/1000000000 metres.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| nanometer | nm | = 3.2808×10−9 ft | ≡ 1×10-9 m ≡ 0.000000001 m | Metric system SI |
| nanometers | points (Didot; European) | nanometers | points (Didot; European) |
|---|---|---|---|
| 1 | ≈ 2.65999999734E-6 | 4 | ≈ 1.063999998936E-5 |
| 1.5 | ≈ 3.98999999601E-6 | 4.5 | ≈ 1.196999998803E-5 |
| 2 | ≈ 5.31999999468E-6 | 5 | ≈ 1.32999999867E-5 |
| 2.5 | ≈ 6.64999999335E-6 | 5.5 | ≈ 1.462999998537E-5 |
| 3 | ≈ 7.97999999202E-6 | 6 | ≈ 1.595999998404E-5 |
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) | nanometers | points (Didot; European) | nanometers |
|---|---|---|---|
| 1 | ≈ 375939.85 | 4 | ≈ 1503759.4 |
| 1.5 | ≈ 563909.775 | 4.5 | ≈ 1691729.325 |
| 2 | ≈ 751879.7 | 5 | ≈ 1879699.25 |
| 2.5 | ≈ 939849.625 | 5.5 | ≈ 2067669.175 |
| 3 | ≈ 1127819.55 | 6 | ≈ 2255639.1 |
| nanometers | points (Didot; European) |
|---|---|
| 1 | ≈ 2.65999999734 × 10-6 |
| 375,939.85 | ≈ 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 …) |