Easy Unit Conversion

Frequency, wavelength

Frequency is physical characteristic of a periodic process, which defines the number of complete cycles of the process performed per unit time. The unit of frequency in the International System of Units (SI) is Hertz (Hz). Frequency, as well as time, is one of the most accurately measured physical quantities with the relative accuracy of up to 10-17.

In nature, there are known periodic processes with frequencies of ~10-16 Hz, the frequency of revolution of the sun around the galactic center, up to ~1035 Hz, which is the frequency of oscillation of the field, typical for most high-energy cosmic rays.

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SI units

Attohertz aHz 1 1000
Femtohertz fHz 0.001 1
Picohertz pHz 10-6 0.001
Nanohertz nHz 10-9 10-6
Microhertz µHz 10-12 10-9
Millihertz mHz 10-15 10-14
Centihertz cHz 10-16 10-15
Decihertz dHz 10-17 10-16
Hertz Hz 10-18 10-15
Decahertz daHz 10-19 10-16
Hectohertz hHz 10-20 10-17
Kilohertz kHz 10-21 10-18
Megahertz MHz 10-24 10-21
Gigahertz GHz 10-27 10-24
Terahertz THz 10-30 10-27
Petahertz PHz 10-33 10-30
Exahertz EHz 10-36 10-33

Other

Wavelength in attometres 299792458 2997924580×102
Wavelength in femtometers 299792.458 299792458
Wavelength in picometers 299.7925 299792.458
Wavelength in nanometers 0.2998 299.7925
Wavelength in millimeters 2.9979×10-7 0.0003
Wavelength in centimeters 2.9979×10-8 2.9979×10-5
Wavelength in decimeters 2.9979×10-9 2.9979×10-6
Wavelength in metres 2.9979×10-10 2.9979×10-7
Wavelength in decameters 2.9979×10-11 2.9979×10-8
Wavelength in hectometers 2.9979×10-12 2.9979×10-9
Wavelength in kilometers 2.9979×10-13 2.9979×10-10
Wavelength in megametres 2.9979×10-16 2.9979×10-13
Wavelength in gigameters 2.9979×10-19 2.9979×10-16
Wavelength in terametres 2.9979×10-22 2.9979×10-19
Wavelength in petametres 2.9979×10-25 2.9979×10-22
Wavelength in exameters 2.9979×10-28 2.9979×10-25

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