Frequency units converter
More than 25 frequency units. Common SI units such as hertzs (Hz), kilohertz (kHz), gigahertz (GHz), but also some less known like radians per seconds, RPM (rotatinions per minute) or degrees per hours.

Beta version

This online calculator is currently under heavy development. It may or it may NOT work correctly.
You CAN try to use it. You CAN even get the proper results.
However, please VERIFY all results on your own, as the level of completion of this item is NOT CONFIRMED.
Feel free to send any ideas and comments !

Inputs data - value and unit, which we're going to convert


1 (hertz) is equal to:

SI system

(plain text)
terahertzShow sourceTHzTHzTHz1×10-12
gigahertzShow sourceGHzGHzGHz1×10-9
megahertzShow sourceMHzMHzMHz0.000001
kilohertzShow sourcekHzkHzkHz0.001
hertzShow sourceHzHzHz1
milihertzShow sourcemHzmHzmHz1000
microhertzShow sourceμHz\mu HzµHz1000000
nanohertzShow sourcenHznHznHz1000000000


(plain text)
1 per secondShow source1s\frac{1}{s}1/s0.1
cycle per secondShow sourcecycles\frac{cycle}{s}cycle/s0.1
degree per hourShow sourceh\frac{^{\circ}}{h}degree/h1296000
degree per minuteShow sourcemin.\frac{^{\circ}}{min.}degree/min.21600
degree per secondShow sources\frac{^{\circ}}{s}degree/s360
degree per hourShow sourceradh\frac{rad}{h}rad/h22619.467
degree per minuteShow sourceradmin.\frac{rad}{min.}rad/min.376.99112
degree per secondShow sourcerads\frac{rad}{s}rad/s6.2831853
revolution per hourShow sourcerevolutionh\frac{revolution}{h}revolution/h3600
revolution per minuteShow sourcerevolutionmin.\frac{revolution}{min.}revolution/min.60
revolution per secondShow sourcerevolutions\frac{revolution}{s}revolution/s0.1
revolution per minuteShow sourceRPMRPMRPM60

Some facts

  • Frequency is physical quantity defining number of cycles (events occurring periodically) per time unit.
  • The basic frequency unit in SI system is one Hz (hertz). One hertz corresponds to the frequency of one cycle per second:
    1Hz=1s1 Hz = \dfrac{1}{s}

  • Frequency is usually indicated by a lower case letter f or greek letter ν\nu (nu).
  • To calculate the frequency of an event directly from the definition, use the following formula:
    f=ntf = \dfrac{n}{t}
    • f - frequency,
    • n - number of recorded events (cycles),
    • t - measurement time.
  • We can find frequency in many everyday areas of life, e.g.
    • The musical note of "A" is used as a standard for tuning musical instrument. It's frequency is 440 Hz. In terms of music, the lower frequency means "lower pitch".
    • The processor i5 2450M is available in versions clocked with frequencies from 2.5 to 3,1 GHz,
    • the plates in most contemporary hard drives make 5400 revolutions per minute (5400 RPM),
    • long play vinyl record (LP) should be played at 33 1/2 revolutions per minut (RPM),
    • program 1 of Polish Radio can be listened in Poland and in neighboring countries on longwave (LW) at frequency 225 kHz,
    • wifi networks use electromagnetic waves with 2,4 GHz or 5 GHz frequency,
    • CD-AUDIO format uses sample rating of 44,1 kHz,
    • the frequency of alternating current (AC) is 50 or 60 Hz depending on the region,
    • etc.

How to convert

  • Enter the number to field "value" - enter the NUMBER only, no other words, symbols or unit names. You can use dot (.) or comma (,) to enter fractions.
    • 1000000
    • 123,23
    • 999.99999
  • Find and select your starting unit in field "unit". Some unit calculators have huge number of different units to select from - it's just how complicated our world is...
  • And... you got the result in the table below. You'll find several results for many different units - we show you all results we know at once. Just find the one you're looking for.

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