attometer | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 am | 13 am | 14 am | 15 am | 16 am | 17 am | 18 am | 19 am | 20 am | 21 am | 22 am | 23 am | 24 am | 25 am | 26 am | 27 am | 28 am | 29 am | 30 am | 31 am | 32 am | 33 am | 34 am | 35 am | 36 am | 37 am | 38 am | 39 am | 40 am | 41 am | 42 am | 43 am | 44 am | 45 am | 46 am | 47 am | 48 am | 49 am | 50 am | 51 am | 52 am | 53 am | 54 am | 55 am | 56 am | 57 am | 58 am | 59 am | 60 am | 61 am | 62 am | 63 am | 64 am | 65 am | 66 am | 67 am | 68 am | 69 am | 70 am | 71 am | 72 am | 73 am | 74 am | 75 am | 76 am | 77 am | 78 am | 79 am | 80 am | 81 am | 82 am | 83 am | 84 am | 85 am | 86 am | 87 am | 88 am | 89 am | 90 am | 91 am | 92 am | 93 am | 94 am | 95 am | 96 am | 97 am | 98 am | 99 am | 100 am |
spat | 1.0 × 10-30 S | 2.0 × 10-30 S | 3.0 × 10-30 S | 4.0 × 10-30 S | 5.0 × 10-30 S | 6.0 × 10-30 S | 7.0 × 10-30 S | 8.0 × 10-30 S | 9.0 × 10-30 S | 1.0 × 10-29 S | 1.1 × 10-29 S | 1.2 × 10-29 S | 1.3 × 10-29 S | 1.4 × 10-29 S | 1.5 × 10-29 S | 1.6 × 10-29 S | 1.7 × 10-29 S | 1.8 × 10-29 S | 1.9 × 10-29 S | 2.0 × 10-29 S | 2.1 × 10-29 S | 2.2 × 10-29 S | 2.3 × 10-29 S | 2.4 × 10-29 S | 2.5 × 10-29 S | 2.6 × 10-29 S | 2.7 × 10-29 S | 2.8 × 10-29 S | 2.9 × 10-29 S | 3.0 × 10-29 S | 3.1 × 10-29 S | 3.2 × 10-29 S | 3.3 × 10-29 S | 3.4 × 10-29 S | 3.5 × 10-29 S | 3.6 × 10-29 S | 3.7 × 10-29 S | 3.8 × 10-29 S | 3.9 × 10-29 S | 4.0 × 10-29 S | 4.1 × 10-29 S | 4.2 × 10-29 S | 4.3 × 10-29 S | 4.4 × 10-29 S | 4.5 × 10-29 S | 4.6 × 10-29 S | 4.7 × 10-29 S | 4.8 × 10-29 S | 4.9 × 10-29 S | 5.0 × 10-29 S | 5.1 × 10-29 S | 5.2 × 10-29 S | 5.3 × 10-29 S | 5.4 × 10-29 S | 5.5 × 10-29 S | 5.6 × 10-29 S | 5.7 × 10-29 S | 5.8 × 10-29 S | 5.9 × 10-29 S | 6.0 × 10-29 S | 6.1 × 10-29 S | 6.2 × 10-29 S | 6.3 × 10-29 S | 6.4 × 10-29 S | 6.5 × 10-29 S | 6.6 × 10-29 S | 6.7 × 10-29 S | 6.8 × 10-29 S | 6.9 × 10-29 S | 7.0 × 10-29 S | 7.1 × 10-29 S | 7.2 × 10-29 S | 7.3 × 10-29 S | 7.4 × 10-29 S | 7.5 × 10-29 S | 7.6 × 10-29 S | 7.7 × 10-29 S | 7.8 × 10-29 S | 7.9 × 10-29 S | 8.0 × 10-29 S | 8.1 × 10-29 S | 8.2 × 10-29 S | 8.3 × 10-29 S | 8.4 × 10-29 S | 8.5 × 10-29 S | 8.6 × 10-29 S | 8.7 × 10-29 S | 8.8 × 10-29 S | 8.9 × 10-29 S | 9.0 × 10-29 S | 9.1 × 10-29 S | 9.2 × 10-29 S | 9.3 × 10-29 S | 9.4 × 10-29 S | 9.5 × 10-29 S | 9.6 × 10-29 S | 9.7 × 10-29 S | 9.8 × 10-29 S | 9.9 × 10-29 S | 1.0 × 10-28 S |
An attometer is a unit of length, a combination of the metric prefix atto (symbol a) and the SI unit of length meter (symbol m), equal to 10−18 meter or 1.0E-18 meter and its symbol is am. Plural name is attometers.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
attometer | am | ≡ 1×10-18 m | ≡ 1×10-18 m | Metric system SI |
attometers | spats | attometers | spats |
---|---|---|---|
1 | ≡ 1.0E-30 | 4 | ≡ 4.0E-30 |
1.5 | ≡ 1.5E-30 | 4.5 | ≡ 4.5E-30 |
2 | ≡ 2.0E-30 | 5 | ≡ 5.0E-30 |
2.5 | ≡ 2.5E-30 | 5.5 | ≡ 5.5E-30 |
3 | ≡ 3.0E-30 | 6 | ≡ 6.0E-30 |
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 | attometers | spats | attometers |
---|---|---|---|
1 | ≡ 1.0E+30 | 4 | ≡ 4.0E+30 |
1.5 | ≡ 1.5E+30 | 4.5 | ≡ 4.5E+30 |
2 | ≡ 2.0E+30 | 5 | ≡ 5.0E+30 |
2.5 | ≡ 2.5E+30 | 5.5 | ≡ 5.5E+30 |
3 | ≡ 3.0E+30 | 6 | ≡ 6.0E+30 |
attometers | spats |
---|---|
1 | ≡ 1.0 × 10-30 |
1.0 × 1030 | ≡ 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 …) |