yoctometer | 1 ym | 2 ym | 3 ym | 4 ym | 5 ym | 6 ym | 7 ym | 8 ym | 9 ym | 10 ym | 11 ym | 12 ym | 13 ym | 14 ym | 15 ym | 16 ym | 17 ym | 18 ym | 19 ym | 20 ym | 21 ym | 22 ym | 23 ym | 24 ym | 25 ym | 26 ym | 27 ym | 28 ym | 29 ym | 30 ym | 31 ym | 32 ym | 33 ym | 34 ym | 35 ym | 36 ym | 37 ym | 38 ym | 39 ym | 40 ym | 41 ym | 42 ym | 43 ym | 44 ym | 45 ym | 46 ym | 47 ym | 48 ym | 49 ym | 50 ym | 51 ym | 52 ym | 53 ym | 54 ym | 55 ym | 56 ym | 57 ym | 58 ym | 59 ym | 60 ym | 61 ym | 62 ym | 63 ym | 64 ym | 65 ym | 66 ym | 67 ym | 68 ym | 69 ym | 70 ym | 71 ym | 72 ym | 73 ym | 74 ym | 75 ym | 76 ym | 77 ym | 78 ym | 79 ym | 80 ym | 81 ym | 82 ym | 83 ym | 84 ym | 85 ym | 86 ym | 87 ym | 88 ym | 89 ym | 90 ym | 91 ym | 92 ym | 93 ym | 94 ym | 95 ym | 96 ym | 97 ym | 98 ym | 99 ym | 100 ym |
spat | 1.0 × 10-36 S | 2.0 × 10-36 S | 3.0 × 10-36 S | 4.0 × 10-36 S | 5.0 × 10-36 S | 6.0 × 10-36 S | 7.0 × 10-36 S | 8.0 × 10-36 S | 9.0 × 10-36 S | 1.0 × 10-35 S | 1.1 × 10-35 S | 1.2 × 10-35 S | 1.3 × 10-35 S | 1.4 × 10-35 S | 1.5 × 10-35 S | 1.6 × 10-35 S | 1.7 × 10-35 S | 1.8 × 10-35 S | 1.9 × 10-35 S | 2.0 × 10-35 S | 2.1 × 10-35 S | 2.2 × 10-35 S | 2.3 × 10-35 S | 2.4 × 10-35 S | 2.5 × 10-35 S | 2.6 × 10-35 S | 2.7 × 10-35 S | 2.8 × 10-35 S | 2.9 × 10-35 S | 3.0 × 10-35 S | 3.1 × 10-35 S | 3.2 × 10-35 S | 3.3 × 10-35 S | 3.4 × 10-35 S | 3.5 × 10-35 S | 3.6 × 10-35 S | 3.7 × 10-35 S | 3.8 × 10-35 S | 3.9 × 10-35 S | 4.0 × 10-35 S | 4.1 × 10-35 S | 4.2 × 10-35 S | 4.3 × 10-35 S | 4.4 × 10-35 S | 4.5 × 10-35 S | 4.6 × 10-35 S | 4.7 × 10-35 S | 4.8 × 10-35 S | 4.9 × 10-35 S | 5.0 × 10-35 S | 5.1 × 10-35 S | 5.2 × 10-35 S | 5.3 × 10-35 S | 5.4 × 10-35 S | 5.5 × 10-35 S | 5.6 × 10-35 S | 5.7 × 10-35 S | 5.8 × 10-35 S | 5.9 × 10-35 S | 6.0 × 10-35 S | 6.1 × 10-35 S | 6.2 × 10-35 S | 6.3 × 10-35 S | 6.4 × 10-35 S | 6.5 × 10-35 S | 6.6 × 10-35 S | 6.7 × 10-35 S | 6.8 × 10-35 S | 6.9 × 10-35 S | 7.0 × 10-35 S | 7.1 × 10-35 S | 7.2 × 10-35 S | 7.3 × 10-35 S | 7.4 × 10-35 S | 7.5 × 10-35 S | 7.6 × 10-35 S | 7.7 × 10-35 S | 7.8 × 10-35 S | 7.9 × 10-35 S | 8.0 × 10-35 S | 8.1 × 10-35 S | 8.2 × 10-35 S | 8.3 × 10-35 S | 8.4 × 10-35 S | 8.5 × 10-35 S | 8.6 × 10-35 S | 8.7 × 10-35 S | 8.8 × 10-35 S | 8.9 × 10-35 S | 9.0 × 10-35 S | 9.1 × 10-35 S | 9.2 × 10-35 S | 9.3 × 10-35 S | 9.4 × 10-35 S | 9.5 × 10-35 S | 9.6 × 10-35 S | 9.7 × 10-35 S | 9.8 × 10-35 S | 9.9 × 10-35 S | 1.0 × 10-34 S |
The yoctometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: ym) or yoctometer (American spelling) is an SI measure of length that is equal to 10−24 (yocto) of a metre. It is the smallest named subdivision of the metre in the SI base unit of length.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
yoctometer | ym | ≡ 1×10-24 m | ≡ 1×10-24 m | Metric system SI |
yoctometers | spats | yoctometers | spats |
---|---|---|---|
1 | ≡ 1.0E-36 | 4 | ≡ 4.0E-36 |
1.5 | ≡ 1.5E-36 | 4.5 | ≡ 4.5E-36 |
2 | ≡ 2.0E-36 | 5 | ≡ 5.0E-36 |
2.5 | ≡ 2.5E-36 | 5.5 | ≡ 5.5E-36 |
3 | ≡ 3.0E-36 | 6 | ≡ 6.0E-36 |
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 | yoctometers | spats | yoctometers |
---|---|---|---|
1 | ≡ 1.0E+36 | 4 | ≡ 4.0E+36 |
1.5 | ≡ 1.5E+36 | 4.5 | ≡ 4.5E+36 |
2 | ≡ 2.0E+36 | 5 | ≡ 5.0E+36 |
2.5 | ≡ 2.5E+36 | 5.5 | ≡ 5.5E+36 |
3 | ≡ 3.0E+36 | 6 | ≡ 6.0E+36 |
yoctometers | spats |
---|---|
1 | ≡ 1.0 × 10-36 |
1.0 × 1036 | ≡ 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 …) |