Frequency Converter
Instantly convert frequency between hertz, kilohertz, megahertz, gigahertz, RPM, BPM, and radians per second.
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Use a comma or period as the decimal separator; do not use thousands separators.
SI frequency
- Nanohertz (nHz)
- 1,000,000,000
- Microhertz (µHz)
- 1,000,000
- Millihertz (mHz)
- 1,000
- Hertz (Hz)Input
- 1
- Kilohertz (kHz)
- 0.001
- Megahertz (MHz)
- 0.000001
- Gigahertz (GHz)
- 1e-9
- Terahertz (THz)
- 1e-12
- Petahertz (PHz)
- 1e-15
1 nHz = 10^-9 Hz
1 µHz = 10^-6 Hz
1 mHz = 10^-3 Hz
1 Hz = one complete periodic event per second
1 kHz = 1000 Hz
1 MHz = 10^6 Hz
1 GHz = 10^9 Hz
1 THz = 10^12 Hz
1 PHz = 10^15 Hz
Events and tempo
- Cycles per second (cps)
- 1
- Cycles per minute (cpm)
- 60
- Cycles per hour (cph)
- 3,600
- Cycles per day (cpd)
- 86,400
- Beats per minute (BPM)
- 60
Cycles per second; numerically equal to Hz, descriptive context
1 cpm = 1/60 Hz
1 cph = 1/3600 Hz
1 cpd = 1/86400 Hz
1 BPM = 1/60 Hz when one beat counts as one event
Rotation
- Revolutions per second (r/s)
- 1
- Revolutions per minute (rpm)
- 60
Revolutions per second; one revolution counts as one cycle
1 rpm = 1/60 Hz
Angular frequency
- Radians per second (rad/s)
- 6.28318531
- Degrees per second (°/s)
- 360
Angular frequency: ω = 2πf
Angular frequency: 360 °/s = 1 Hz
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