| attosecond | 1 as | 2 as | 3 as | 4 as | 5 as | 6 as | 7 as | 8 as | 9 as | 10 as | 11 as | 12 as | 13 as | 14 as | 15 as | 16 as | 17 as | 18 as | 19 as | 20 as | 21 as | 22 as | 23 as | 24 as | 25 as | 26 as | 27 as | 28 as | 29 as | 30 as | 31 as | 32 as | 33 as | 34 as | 35 as | 36 as | 37 as | 38 as | 39 as | 40 as | 41 as | 42 as | 43 as | 44 as | 45 as | 46 as | 47 as | 48 as | 49 as | 50 as | 51 as | 52 as | 53 as | 54 as | 55 as | 56 as | 57 as | 58 as | 59 as | 60 as | 61 as | 62 as | 63 as | 64 as | 65 as | 66 as | 67 as | 68 as | 69 as | 70 as | 71 as | 72 as | 73 as | 74 as | 75 as | 76 as | 77 as | 78 as | 79 as | 80 as | 81 as | 82 as | 83 as | 84 as | 85 as | 86 as | 87 as | 88 as | 89 as | 90 as | 91 as | 92 as | 93 as | 94 as | 95 as | 96 as | 97 as | 98 as | 99 as | 100 as |
| helek | 3.0 × 10-19 helek | 6.0 × 10-19 helek | 9.0 × 10-19 helek | 1.2 × 10-18 helek | 1.5 × 10-18 helek | 1.8 × 10-18 helek | 2.1 × 10-18 helek | 2.4 × 10-18 helek | 2.7 × 10-18 helek | 3.0 × 10-18 helek | 3.3 × 10-18 helek | 3.6 × 10-18 helek | 3.9 × 10-18 helek | 4.2 × 10-18 helek | 4.5 × 10-18 helek | 4.8 × 10-18 helek | 5.1 × 10-18 helek | 5.4 × 10-18 helek | 5.7 × 10-18 helek | 6.0 × 10-18 helek | 6.3 × 10-18 helek | 6.6 × 10-18 helek | 6.9 × 10-18 helek | 7.2 × 10-18 helek | 7.5 × 10-18 helek | 7.8 × 10-18 helek | 8.1 × 10-18 helek | 8.4 × 10-18 helek | 8.7 × 10-18 helek | 9.0 × 10-18 helek | 9.3 × 10-18 helek | 9.6 × 10-18 helek | 9.9 × 10-18 helek | 1.02 × 10-17 helek | 1.05 × 10-17 helek | 1.08 × 10-17 helek | 1.11 × 10-17 helek | 1.14 × 10-17 helek | 1.17 × 10-17 helek | 1.2 × 10-17 helek | 1.23 × 10-17 helek | 1.26 × 10-17 helek | 1.29 × 10-17 helek | 1.32 × 10-17 helek | 1.35 × 10-17 helek | 1.38 × 10-17 helek | 1.41 × 10-17 helek | 1.44 × 10-17 helek | 1.47 × 10-17 helek | 1.5 × 10-17 helek | 1.53 × 10-17 helek | 1.56 × 10-17 helek | 1.59 × 10-17 helek | 1.62 × 10-17 helek | 1.65 × 10-17 helek | 1.68 × 10-17 helek | 1.71 × 10-17 helek | 1.74 × 10-17 helek | 1.77 × 10-17 helek | 1.8 × 10-17 helek | 1.83 × 10-17 helek | 1.86 × 10-17 helek | 1.89 × 10-17 helek | 1.92 × 10-17 helek | 1.95 × 10-17 helek | 1.98 × 10-17 helek | 2.01 × 10-17 helek | 2.04 × 10-17 helek | 2.07 × 10-17 helek | 2.1 × 10-17 helek | 2.13 × 10-17 helek | 2.16 × 10-17 helek | 2.19 × 10-17 helek | 2.22 × 10-17 helek | 2.25 × 10-17 helek | 2.28 × 10-17 helek | 2.31 × 10-17 helek | 2.34 × 10-17 helek | 2.37 × 10-17 helek | 2.4 × 10-17 helek | 2.43 × 10-17 helek | 2.46 × 10-17 helek | 2.49 × 10-17 helek | 2.52 × 10-17 helek | 2.55 × 10-17 helek | 2.58 × 10-17 helek | 2.61 × 10-17 helek | 2.64 × 10-17 helek | 2.67 × 10-17 helek | 2.7 × 10-17 helek | 2.73 × 10-17 helek | 2.76 × 10-17 helek | 2.79 × 10-17 helek | 2.82 × 10-17 helek | 2.85 × 10-17 helek | 2.88 × 10-17 helek | 2.91 × 10-17 helek | 2.94 × 10-17 helek | 2.97 × 10-17 helek | 3.0 × 10-17 helek |
Attosecond is equal to 10 second (unit of time), comes from a combination of the metric prefix atto (a) with the second (s). Plural name is attoseconds with symbol is as.
| 1 attoseconds = 3.0E-19 heleks | 6 attoseconds = 1.8E-18 heleks |
| 2 attoseconds = 6.0E-19 heleks | 7 attoseconds = 2.1E-18 heleks |
| 3 attoseconds = 9.0E-19 heleks | 8 attoseconds = 2.4E-18 heleks |
| 4 attoseconds = 1.2E-18 heleks | 9 attoseconds = 2.7E-18 heleks |
| 5 attoseconds = 1.5E-18 heleks | 10 attoseconds = 3.0E-18 heleks |
A helek is 3⅓ seconds or 1/18 minute.
| 1 heleks = 3.3333333333333E+18 attoseconds | 6 heleks = 2.0E+19 attoseconds |
| 2 heleks = 6.6666666666667E+18 attoseconds | 7 heleks = 2.3333333333333E+19 attoseconds |
| 3 heleks = 1.0E+19 attoseconds | 8 heleks = 2.6666666666667E+19 attoseconds |
| 4 heleks = 1.3333333333333E+19 attoseconds | 9 heleks = 3.0E+19 attoseconds |
| 5 heleks = 1.6666666666667E+19 attoseconds | 10 heleks = 3.3333333333333E+19 attoseconds |
| 1 attoseconds = 3.0 × 10-19 heleks |
| 1 heleks = 3.3333333333333 × 1018 attoseconds |