| yoctosecond | 1 ys | 2 ys | 3 ys | 4 ys | 5 ys | 6 ys | 7 ys | 8 ys | 9 ys | 10 ys | 11 ys | 12 ys | 13 ys | 14 ys | 15 ys | 16 ys | 17 ys | 18 ys | 19 ys | 20 ys | 21 ys | 22 ys | 23 ys | 24 ys | 25 ys | 26 ys | 27 ys | 28 ys | 29 ys | 30 ys | 31 ys | 32 ys | 33 ys | 34 ys | 35 ys | 36 ys | 37 ys | 38 ys | 39 ys | 40 ys | 41 ys | 42 ys | 43 ys | 44 ys | 45 ys | 46 ys | 47 ys | 48 ys | 49 ys | 50 ys | 51 ys | 52 ys | 53 ys | 54 ys | 55 ys | 56 ys | 57 ys | 58 ys | 59 ys | 60 ys | 61 ys | 62 ys | 63 ys | 64 ys | 65 ys | 66 ys | 67 ys | 68 ys | 69 ys | 70 ys | 71 ys | 72 ys | 73 ys | 74 ys | 75 ys | 76 ys | 77 ys | 78 ys | 79 ys | 80 ys | 81 ys | 82 ys | 83 ys | 84 ys | 85 ys | 86 ys | 87 ys | 88 ys | 89 ys | 90 ys | 91 ys | 92 ys | 93 ys | 94 ys | 95 ys | 96 ys | 97 ys | 98 ys | 99 ys | 100 ys |
| helek | 3.0 × 10-25 helek | 6.0 × 10-25 helek | 9.0 × 10-25 helek | 1.2 × 10-24 helek | 1.5 × 10-24 helek | 1.8 × 10-24 helek | 2.1 × 10-24 helek | 2.4 × 10-24 helek | 2.7 × 10-24 helek | 3.0 × 10-24 helek | 3.3 × 10-24 helek | 3.6 × 10-24 helek | 3.9 × 10-24 helek | 4.2 × 10-24 helek | 4.5 × 10-24 helek | 4.8 × 10-24 helek | 5.1 × 10-24 helek | 5.4 × 10-24 helek | 5.7 × 10-24 helek | 6.0 × 10-24 helek | 6.3 × 10-24 helek | 6.6 × 10-24 helek | 6.9 × 10-24 helek | 7.2 × 10-24 helek | 7.5 × 10-24 helek | 7.8 × 10-24 helek | 8.1 × 10-24 helek | 8.4 × 10-24 helek | 8.7 × 10-24 helek | 9.0 × 10-24 helek | 9.3 × 10-24 helek | 9.6 × 10-24 helek | 9.9 × 10-24 helek | 1.02 × 10-23 helek | 1.05 × 10-23 helek | 1.08 × 10-23 helek | 1.11 × 10-23 helek | 1.14 × 10-23 helek | 1.17 × 10-23 helek | 1.2 × 10-23 helek | 1.23 × 10-23 helek | 1.26 × 10-23 helek | 1.29 × 10-23 helek | 1.32 × 10-23 helek | 1.35 × 10-23 helek | 1.38 × 10-23 helek | 1.41 × 10-23 helek | 1.44 × 10-23 helek | 1.47 × 10-23 helek | 1.5 × 10-23 helek | 1.53 × 10-23 helek | 1.56 × 10-23 helek | 1.59 × 10-23 helek | 1.62 × 10-23 helek | 1.65 × 10-23 helek | 1.68 × 10-23 helek | 1.71 × 10-23 helek | 1.74 × 10-23 helek | 1.77 × 10-23 helek | 1.8 × 10-23 helek | 1.83 × 10-23 helek | 1.86 × 10-23 helek | 1.89 × 10-23 helek | 1.92 × 10-23 helek | 1.95 × 10-23 helek | 1.98 × 10-23 helek | 2.01 × 10-23 helek | 2.04 × 10-23 helek | 2.07 × 10-23 helek | 2.1 × 10-23 helek | 2.13 × 10-23 helek | 2.16 × 10-23 helek | 2.19 × 10-23 helek | 2.22 × 10-23 helek | 2.25 × 10-23 helek | 2.28 × 10-23 helek | 2.31 × 10-23 helek | 2.34 × 10-23 helek | 2.37 × 10-23 helek | 2.4 × 10-23 helek | 2.43 × 10-23 helek | 2.46 × 10-23 helek | 2.49 × 10-23 helek | 2.52 × 10-23 helek | 2.55 × 10-23 helek | 2.58 × 10-23 helek | 2.61 × 10-23 helek | 2.64 × 10-23 helek | 2.67 × 10-23 helek | 2.7 × 10-23 helek | 2.73 × 10-23 helek | 2.76 × 10-23 helek | 2.79 × 10-23 helek | 2.82 × 10-23 helek | 2.85 × 10-23 helek | 2.88 × 10-23 helek | 2.91 × 10-23 helek | 2.94 × 10-23 helek | 2.97 × 10-23 helek | 3.0 × 10-23 helek |
Yoctosecond is equal to 10-24 second (unit of time), comes from a combination of the metric prefix yocto (y) with the second (s). Plural name is yoctoseconds with symbol is ys.
| 1 yoctoseconds = 3.0E-25 heleks | 6 yoctoseconds = 1.8E-24 heleks |
| 2 yoctoseconds = 6.0E-25 heleks | 7 yoctoseconds = 2.1E-24 heleks |
| 3 yoctoseconds = 9.0E-25 heleks | 8 yoctoseconds = 2.4E-24 heleks |
| 4 yoctoseconds = 1.2E-24 heleks | 9 yoctoseconds = 2.7E-24 heleks |
| 5 yoctoseconds = 1.5E-24 heleks | 10 yoctoseconds = 3.0E-24 heleks |
A helek is 3⅓ seconds or 1/18 minute.
| 1 heleks = 3.3333333333333E+24 yoctoseconds | 6 heleks = 2.0E+25 yoctoseconds |
| 2 heleks = 6.6666666666667E+24 yoctoseconds | 7 heleks = 2.3333333333333E+25 yoctoseconds |
| 3 heleks = 1.0E+25 yoctoseconds | 8 heleks = 2.6666666666667E+25 yoctoseconds |
| 4 heleks = 1.3333333333333E+25 yoctoseconds | 9 heleks = 3.0E+25 yoctoseconds |
| 5 heleks = 1.6666666666667E+25 yoctoseconds | 10 heleks = 3.3333333333333E+25 yoctoseconds |
| 1 yoctoseconds = 3.0 × 10-25 heleks |
| 1 heleks = 3.3333333333333 × 1024 yoctoseconds |