petahertz | 1 PHz | 2 PHz | 3 PHz | 4 PHz | 5 PHz | 6 PHz | 7 PHz | 8 PHz | 9 PHz | 10 PHz | 11 PHz | 12 PHz | 13 PHz | 14 PHz | 15 PHz | 16 PHz | 17 PHz | 18 PHz | 19 PHz | 20 PHz | 21 PHz | 22 PHz | 23 PHz | 24 PHz | 25 PHz | 26 PHz | 27 PHz | 28 PHz | 29 PHz | 30 PHz | 31 PHz | 32 PHz | 33 PHz | 34 PHz | 35 PHz | 36 PHz | 37 PHz | 38 PHz | 39 PHz | 40 PHz | 41 PHz | 42 PHz | 43 PHz | 44 PHz | 45 PHz | 46 PHz | 47 PHz | 48 PHz | 49 PHz | 50 PHz | 51 PHz | 52 PHz | 53 PHz | 54 PHz | 55 PHz | 56 PHz | 57 PHz | 58 PHz | 59 PHz | 60 PHz | 61 PHz | 62 PHz | 63 PHz | 64 PHz | 65 PHz | 66 PHz | 67 PHz | 68 PHz | 69 PHz | 70 PHz | 71 PHz | 72 PHz | 73 PHz | 74 PHz | 75 PHz | 76 PHz | 77 PHz | 78 PHz | 79 PHz | 80 PHz | 81 PHz | 82 PHz | 83 PHz | 84 PHz | 85 PHz | 86 PHz | 87 PHz | 88 PHz | 89 PHz | 90 PHz | 91 PHz | 92 PHz | 93 PHz | 94 PHz | 95 PHz | 96 PHz | 97 PHz | 98 PHz | 99 PHz | 100 PHz |
cycle per second | 1.0 × 1015 c.p.s. | 2.0 × 1015 c.p.s. | 3.0 × 1015 c.p.s. | 4.0 × 1015 c.p.s. | 5.0 × 1015 c.p.s. | 6.0 × 1015 c.p.s. | 7.0 × 1015 c.p.s. | 8.0 × 1015 c.p.s. | 9.0 × 1015 c.p.s. | 1.0 × 1016 c.p.s. | 1.1 × 1016 c.p.s. | 1.2 × 1016 c.p.s. | 1.3 × 1016 c.p.s. | 1.4 × 1016 c.p.s. | 1.5 × 1016 c.p.s. | 1.6 × 1016 c.p.s. | 1.7 × 1016 c.p.s. | 1.8 × 1016 c.p.s. | 1.9 × 1016 c.p.s. | 2.0 × 1016 c.p.s. | 2.1 × 1016 c.p.s. | 2.2 × 1016 c.p.s. | 2.3 × 1016 c.p.s. | 2.4 × 1016 c.p.s. | 2.5 × 1016 c.p.s. | 2.6 × 1016 c.p.s. | 2.7 × 1016 c.p.s. | 2.8 × 1016 c.p.s. | 2.9 × 1016 c.p.s. | 3.0 × 1016 c.p.s. | 3.1 × 1016 c.p.s. | 3.2 × 1016 c.p.s. | 3.3 × 1016 c.p.s. | 3.4 × 1016 c.p.s. | 3.5 × 1016 c.p.s. | 3.6 × 1016 c.p.s. | 3.7 × 1016 c.p.s. | 3.8 × 1016 c.p.s. | 3.9 × 1016 c.p.s. | 4.0 × 1016 c.p.s. | 4.1 × 1016 c.p.s. | 4.2 × 1016 c.p.s. | 4.3 × 1016 c.p.s. | 4.4 × 1016 c.p.s. | 4.5 × 1016 c.p.s. | 4.6 × 1016 c.p.s. | 4.7 × 1016 c.p.s. | 4.8 × 1016 c.p.s. | 4.9 × 1016 c.p.s. | 5.0 × 1016 c.p.s. | 5.1 × 1016 c.p.s. | 5.2 × 1016 c.p.s. | 5.3 × 1016 c.p.s. | 5.4 × 1016 c.p.s. | 5.5 × 1016 c.p.s. | 5.6 × 1016 c.p.s. | 5.7 × 1016 c.p.s. | 5.8 × 1016 c.p.s. | 5.9 × 1016 c.p.s. | 6.0 × 1016 c.p.s. | 6.1 × 1016 c.p.s. | 6.2 × 1016 c.p.s. | 6.3 × 1016 c.p.s. | 6.4 × 1016 c.p.s. | 6.5 × 1016 c.p.s. | 6.6 × 1016 c.p.s. | 6.7 × 1016 c.p.s. | 6.8 × 1016 c.p.s. | 6.9 × 1016 c.p.s. | 7.0 × 1016 c.p.s. | 7.1 × 1016 c.p.s. | 7.2 × 1016 c.p.s. | 7.3 × 1016 c.p.s. | 7.4 × 1016 c.p.s. | 7.5 × 1016 c.p.s. | 7.6 × 1016 c.p.s. | 7.7 × 1016 c.p.s. | 7.8 × 1016 c.p.s. | 7.9 × 1016 c.p.s. | 8.0 × 1016 c.p.s. | 8.1 × 1016 c.p.s. | 8.2 × 1016 c.p.s. | 8.3 × 1016 c.p.s. | 8.4 × 1016 c.p.s. | 8.5 × 1016 c.p.s. | 8.6 × 1016 c.p.s. | 8.7 × 1016 c.p.s. | 8.8 × 1016 c.p.s. | 8.9 × 1016 c.p.s. | 9.0 × 1016 c.p.s. | 9.1 × 1016 c.p.s. | 9.2 × 1016 c.p.s. | 9.3 × 1016 c.p.s. | 9.4 × 1016 c.p.s. | 9.5 × 1016 c.p.s. | 9.6 × 1016 c.p.s. | 9.7 × 1016 c.p.s. | 9.8 × 1016 c.p.s. | 9.9 × 1016 c.p.s. | 1.0 × 1017 c.p.s. |
A petahertz is a SI prefixes applied unit of frequency, symbol PHz, is a multiple of the of SI prefixes (peta) used with the hertz.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
petahertz | PHz | ≡ 1015Hz | ≡ 1015 Hz | Metric system SI |
petahertzs | cycles per second | petahertzs | cycles per second |
---|---|---|---|
1 | ≡ 1.0E+15 | 6 | ≡ 6.0E+15 |
2 | ≡ 2.0E+15 | 7 | ≡ 7.0E+15 |
3 | ≡ 3.0E+15 | 8 | ≡ 8.0E+15 |
4 | ≡ 4.0E+15 | 9 | ≡ 9.0E+15 |
5 | ≡ 5.0E+15 | 10 | ≡ 1.0E+16 |
The cycle per second was a once-common English name for the unit of frequency now known as the hertz. The plural form was typically used, often written cycles per second, cycles/second, c.p.s., c/s, ~, or, ambiguously, just cycles. The term comes from the fact that sound waves have a frequency measurable in their number of vibrations, or cycles, per second.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
cycle per second | c.p.s. | ≡ 1 Hz | ≡ 1 Hz | Angular frequency |
cycles per second | petahertzs | cycles per second | petahertzs |
---|---|---|---|
1 | ≡ 1.0E-15 | 6 | ≡ 6.0E-15 |
2 | ≡ 2.0E-15 | 7 | ≡ 7.0E-15 |
3 | ≡ 3.0E-15 | 8 | ≡ 8.0E-15 |
4 | ≡ 4.0E-15 | 9 | ≡ 9.0E-15 |
5 | ≡ 5.0E-15 | 10 | ≡ 1.0E-14 |
petahertzs | cycles per second |
---|---|
1 | ≡ 1.0 × 1015 |
1.0 × 10-15 | ≡ 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 …) |