Zeptohertz: conversions & definition
Zeptohertz (zHz) represent frequency. One unit equals 10^-21 Hz. One hertz represents one cycle per second for a periodic phenomenon.
Choose the unit you need
Each row converts one zHz. Open a converter to enter any value and see its formula, worked example and reference table. Results below are rounded to 10 significant digits.
| Convert to | Equivalent value | Calculator |
|---|---|---|
| Hertz (Hz) | ≈ 1e-21 | Convert zHz to Hz |
| Millihertz (mHz) | ≈ 1e-18 | Convert zHz to mHz |
| Kilohertz (kHz) | ≈ 1e-24 | Convert zHz to kHz |
| Microhertz (µHz) | ≈ 1e-15 | Convert zHz to µHz |
| Megahertz (MHz) | ≈ 1e-27 | Convert zHz to MHz |
| Nanohertz (nHz) | ≈ 1e-12 | Convert zHz to nHz |
| Gigahertz (GHz) | ≈ 1e-30 | Convert zHz to GHz |
| Centihertz (cHz) | ≈ 1e-19 | Convert zHz to cHz |
| Decihertz (dHz) | ≈ 1e-20 | Convert zHz to dHz |
| Hectohertz (hHz) | ≈ 1e-23 | Convert zHz to hHz |
| Decahertz (daHz) | ≈ 1e-22 | Convert zHz to daHz |
| Picohertz (pHz) | ≈ 1e-9 | Convert zHz to pHz |
| Terahertz (THz) | ≈ 1e-33 | Convert zHz to THz |
| Femtohertz (fHz) | ≈ 0.000001 | Convert zHz to fHz |
| Petahertz (PHz) | ≈ 1e-36 | Convert zHz to PHz |
| Attohertz (aHz) | ≈ 0.001 | Convert zHz to aHz |
| Exahertz (EHz) | ≈ 1e-39 | Convert zHz to EHz |
| Zettahertz (ZHz) | ≈ 1e-42 | Convert zHz to ZHz |
| Yoctohertz (yHz) | ≈ 1,000 | Convert zHz to yHz |
Keep the quantity consistent
Choose units that represent the same quantity and preserve the measurement conditions. A scale conversion changes the number and unit together; it does not change the physical amount or improve the accuracy of your measurement.
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