# Category frequency

**Frequency** is the number of occurrences of a repeating event per unit of time. It is also occasionally referred to as temporal frequency to emphasize the contrast to spatial frequency, and ordinary frequency to emphasize the contrast to angular frequency. Frequency is measured in hertz (Hz) which is equal to one event per second. The **period** is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency. For example: if a newborn baby's heart beats at a frequency of 120 times a minute (2 hertz), its period, *T*—the time interval between beats—is half a second (60 seconds divided by 120 beats). Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals (sound), radio waves, and light.

## Latest from category frequency

2 mHz to Hz (millihertz to hertz)

440 hertz to meters (wavelengths) (Hz to m.wl)

nanometer (wavelength) to hertz (nm.wl to Hz)

400 nanometers (wavelengths) to hertz (nm.wl to Hz)

Hz to meters (wavelengths) (hertz to m.wl)

170 MHz to Hz (megahertz to hertz)

hertz to nanometers (wavelengths) (Hz to nm.wl)

170.3 mHz to Hz (millihertz to hertz)

hertz to meters (wavelengths) (Hz to m.wl)

MHz to meters (wavelengths) (megahertz to m.wl)

3 MHz to Hz (megahertz to hertz)

3 mHz to Hz (millihertz to hertz)

130 Hz to meters (wavelengths) (hertz to m.wl)

micrometer (wavelength) to hertz (μm.wl to Hz)

gigahertz to nanometers (wavelengths) (GHz to nm.wl)

hertz to micrometers (wavelengths) (Hz to μm.wl)

22.235 gigahertz to nanometers (wavelengths) (GHz to nm.wl)

megahertz to nanometers (wavelengths) (MHz to nm.wl)

4 MHz to nanometer (wavelength) (megahertz to nm.wl)

centimeter (wavelength) to hertz (cm.wl to Hz)

24 hertz to GHz (Hz to gigahertz)

2.4 GHz to hertz (gigahertz to Hz)

5 PHz to hertz (petahertz to Hz)

13 terahertz to nanometers (wavelengths) (THz to nm.wl)

2.2 GHz to Hz (gigahertz to hertz)

PHz to hertz (petahertz to Hz)

2.4 gigahertz to MHz (GHz to megahertz)

2.4 GHz to MHz (gigahertz to megahertz)

THz to nanometers (wavelengths) (terahertz to nm.wl)

nanometer (wavelength) to THz (nm.wl to terahertz)

10,000 hertz to meters (wavelengths) (Hz to m.wl)

50 hertz to meters (wavelengths) (Hz to m.wl)

Hz to uHz (hertz to microhertz)

uHz to Hz (microhertz to hertz)

picometer (wavelength) to hertz (pm.wl to Hz)

hertz to picometers (wavelengths) (Hz to pm.wl)

13 millimeters (wavelengths) to hertz (mm.wl to Hz)

300 hertz to millimeters (wavelengths) (Hz to mm.wl)

213 hertz to millimeters (wavelengths) (Hz to mm.wl)

13 hertz to millimeters (wavelengths) (Hz to mm.wl)

2.4 millimeters (wavelengths) to hertz (mm.wl to Hz)

millimeter (wavelength) to hertz (mm.wl to Hz)

hertz to millimeters (wavelengths) (Hz to mm.wl)

480 meters (wavelengths) to nanometer (wavelength) (m.wl to nm.wl)

350 meters (wavelengths) to MHz (m.wl to megahertz)

350 MHz to meters (wavelengths) (megahertz to m.wl)

nanometer (wavelength) to terahertz (nm.wl to THz)

30 megahertz to nanometers (wavelengths) (MHz to nm.wl)

200 megahertz to nanometers (wavelengths) (MHz to nm.wl)

1 kHz to Hz (kilohertz to hertz)

2.7 GHz to Hz (gigahertz to hertz)

2.7 GHz to meter (wavelength) (gigahertz to m.wl)

15 GHz to centimeters (wavelengths) (gigahertz to cm.wl)

2.4 GHz to centimeters (wavelengths) (gigahertz to cm.wl)

mHz to meters (wavelengths) (millihertz to m.wl)

450 MHz to meters (wavelengths) (megahertz to m.wl)

megahertz to meters (wavelengths) (MHz to m.wl)

meter (wavelength) to megahertz (m.wl to MHz)

meter (wavelength) to hertz (m.wl to Hz)

megahertz to meter (wavelength) (MHz to m.wl)

nanometer (wavelength) to pHz (nm.wl to picohertz)

2 THz to Hz (terahertz to hertz)

THz to Hz (terahertz to hertz)

50 Hz to nanometers (wavelengths) (hertz to nm.wl)

nanometer (wavelength) to yoctometers (wavelengths) (nm.wl to ym.wl)

5.97 hertz to nanometers (wavelengths) (Hz to nm.wl)

meter (wavelength) to kHz (m.wl to kilohertz)

kHz to meters (wavelengths) (kilohertz to m.wl)

3 kHz to Hz (kilohertz to hertz)

hertz to centimeters (wavelengths) (Hz to cm.wl)

GHz to nanometers (wavelengths) (gigahertz to nm.wl)

400 hertz to meters (wavelengths) (Hz to m.wl)

4 GHz to Hz (gigahertz to hertz)

nanometer (wavelength) to gigahertz (nm.wl to GHz)

150 MHz to centimeter (wavelength) (megahertz to cm.wl)

150 mHz to nm.wl (millihertz to nanometers (wavelengths))

425 nanometers (wavelengths) to hertz (nm.wl to Hz)

picometer (wavelength) to mHz (pm.wl to millihertz)

mHz to picometer (wavelength) (millihertz to pm.wl)

4 MHz to pm.wl (megahertz to picometers (wavelengths))

4 pm.wl to MHz (picometers (wavelengths) to megahertz)

150 nm.wl to mHz (nanometers (wavelengths) to millihertz)

193 THz to nanometers (wavelengths) (terahertz to nm.wl)

430 THz to nanometers (wavelengths) (terahertz to nm.wl)

300,000,000 nanometers (wavelengths) to centimeter (wavelength) (nm.wl to cm.wl)

micrometer (wavelength) to meter (wavelength) (μm.wl to m.wl)

3 MHz to meters (wavelengths) (megahertz to m.wl)

915 MHz to meters (wavelengths) (megahertz to m.wl)

10 hertz to zettameter (wavelength) (Hz to Zm.wl)

442 hertz to attohertz (Hz to aHz)

400 mHz to meter (wavelength) (millihertz to m.wl)

1,000 MHz to meters (wavelengths) (megahertz to m.wl)

1,000 mHz to meters (wavelengths) (millihertz to m.wl)

100 MHz to meters (wavelengths) (megahertz to m.wl)

100 meters (wavelengths) to MHz (m.wl to megahertz)

100 MHz to meter (wavelength) (megahertz to m.wl)

400 MHz to centimeter (wavelength) (megahertz to cm.wl)

2 Hz to kHz (hertz to kilohertz)