| micron | 1 μm | 2 μm | 3 μm | 4 μm | 5 μm | 6 μm | 7 μm | 8 μm | 9 μm | 10 μm | 11 μm | 12 μm | 13 μm | 14 μm | 15 μm | 16 μm | 17 μm | 18 μm | 19 μm | 20 μm | 21 μm | 22 μm | 23 μm | 24 μm | 25 μm | 26 μm | 27 μm | 28 μm | 29 μm | 30 μm | 31 μm | 32 μm | 33 μm | 34 μm | 35 μm | 36 μm | 37 μm | 38 μm | 39 μm | 40 μm | 41 μm | 42 μm | 43 μm | 44 μm | 45 μm | 46 μm | 47 μm | 48 μm | 49 μm | 50 μm | 51 μm | 52 μm | 53 μm | 54 μm | 55 μm | 56 μm | 57 μm | 58 μm | 59 μm | 60 μm | 61 μm | 62 μm | 63 μm | 64 μm | 65 μm | 66 μm | 67 μm | 68 μm | 69 μm | 70 μm | 71 μm | 72 μm | 73 μm | 74 μm | 75 μm | 76 μm | 77 μm | 78 μm | 79 μm | 80 μm | 81 μm | 82 μm | 83 μm | 84 μm | 85 μm | 86 μm | 87 μm | 88 μm | 89 μm | 90 μm | 91 μm | 92 μm | 93 μm | 94 μm | 95 μm | 96 μm | 97 μm | 98 μm | 99 μm | 100 μm |
| spat | 1.0 × 10-18 S | 2.0 × 10-18 S | 3.0 × 10-18 S | 4.0 × 10-18 S | 5.0 × 10-18 S | 6.0 × 10-18 S | 7.0 × 10-18 S | 8.0 × 10-18 S | 9.0 × 10-18 S | 1.0 × 10-17 S | 1.1 × 10-17 S | 1.2 × 10-17 S | 1.3 × 10-17 S | 1.4 × 10-17 S | 1.5 × 10-17 S | 1.6 × 10-17 S | 1.7 × 10-17 S | 1.8 × 10-17 S | 1.9 × 10-17 S | 2.0 × 10-17 S | 2.1 × 10-17 S | 2.2 × 10-17 S | 2.3 × 10-17 S | 2.4 × 10-17 S | 2.5 × 10-17 S | 2.6 × 10-17 S | 2.7 × 10-17 S | 2.8 × 10-17 S | 2.9 × 10-17 S | 3.0 × 10-17 S | 3.1 × 10-17 S | 3.2 × 10-17 S | 3.3 × 10-17 S | 3.4 × 10-17 S | 3.5 × 10-17 S | 3.6 × 10-17 S | 3.7 × 10-17 S | 3.8 × 10-17 S | 3.9 × 10-17 S | 4.0 × 10-17 S | 4.1 × 10-17 S | 4.2 × 10-17 S | 4.3 × 10-17 S | 4.4 × 10-17 S | 4.5 × 10-17 S | 4.6 × 10-17 S | 4.7 × 10-17 S | 4.8 × 10-17 S | 4.9 × 10-17 S | 5.0 × 10-17 S | 5.1 × 10-17 S | 5.2 × 10-17 S | 5.3 × 10-17 S | 5.4 × 10-17 S | 5.5 × 10-17 S | 5.6 × 10-17 S | 5.7 × 10-17 S | 5.8 × 10-17 S | 5.9 × 10-17 S | 6.0 × 10-17 S | 6.1 × 10-17 S | 6.2 × 10-17 S | 6.3 × 10-17 S | 6.4 × 10-17 S | 6.5 × 10-17 S | 6.6 × 10-17 S | 6.7 × 10-17 S | 6.8 × 10-17 S | 6.9 × 10-17 S | 7.0 × 10-17 S | 7.1 × 10-17 S | 7.2 × 10-17 S | 7.3 × 10-17 S | 7.4 × 10-17 S | 7.5 × 10-17 S | 7.6 × 10-17 S | 7.7 × 10-17 S | 7.8 × 10-17 S | 7.9 × 10-17 S | 8.0 × 10-17 S | 8.1 × 10-17 S | 8.2 × 10-17 S | 8.3 × 10-17 S | 8.4 × 10-17 S | 8.5 × 10-17 S | 8.6 × 10-17 S | 8.7 × 10-17 S | 8.8 × 10-17 S | 8.9 × 10-17 S | 9.0 × 10-17 S | 9.1 × 10-17 S | 9.2 × 10-17 S | 9.3 × 10-17 S | 9.4 × 10-17 S | 9.5 × 10-17 S | 9.6 × 10-17 S | 9.7 × 10-17 S | 9.8 × 10-17 S | 9.9 × 10-17 S | 1.0 × 10-16 S |
The micron (SI symbol: μm) or micrometer is an SI derived unit of length equaling 1×10−6 of a metre (SI standard prefix "micro-" = 10−6); that is, one millionth of a metre (or one thousandth of a millimetre, 0.001 mm, or about 0.000039 inch).
| 1 micron ≡ 1.0E-18 spats | 4 micron ≡ 4.0E-18 spats |
| 1.5 micron ≡ 1.5E-18 spats | 4.5 micron ≡ 4.5E-18 spats |
| 2 micron ≡ 2.0E-18 spats | 5 micron ≡ 5.0E-18 spats |
| 2.5 micron ≡ 2.5E-18 spats | 5.5 micron ≡ 5.5E-18 spats |
| 3 micron ≡ 3.0E-18 spats | 6 micron ≡ 6.0E-18 spats |
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.
| 1 spats ≡ 1.0E+18 micron | 4 spats ≡ 4.0E+18 micron |
| 1.5 spats ≡ 1.5E+18 micron | 4.5 spats ≡ 4.5E+18 micron |
| 2 spats ≡ 2.0E+18 micron | 5 spats ≡ 5.0E+18 micron |
| 2.5 spats ≡ 2.5E+18 micron | 5.5 spats ≡ 5.5E+18 micron |
| 3 spats ≡ 3.0E+18 micron | 6 spats ≡ 6.0E+18 micron |
| 1 micron ≡ 1.0 × 10-18 spats |
| 1 spats ≡ 1.0 × 1018 micron |