Unitvale

Frequency Converter

Hertz, kilohertz, megahertz, gigahertz and RPM — frequency in radio, processors, monitors and motors, with the exact decimal steps.

Frequency Converter

Units in this category

UnitSymbolExactly
hertz (Hz)Hzreference unit for this category
kilohertz (kHz)kHz1,000 Hz
megahertz (MHz)MHz1,000,000 Hz
gigahertz (GHz)GHz1,000,000,000 Hz
revolutions per minute (rpm)rpm0.01666667 Hz

Where these factors come from

Frequency prefixes are decimal (1 GHz = 1000 MHz = 10⁹ Hz). RPM is a rate of 1/60 Hz per revolution — the two are different quantities, related by exactly 60.

All 20 frequency pairs

Every cell is a live page: pick a row for your starting unit, follow the column you need.

from → toHzkHzMHzGHzrpm
Hz (hertz)0.0010.0000010.00000000160
kHz (kilohertz)1,0000.0010.00000160,000
MHz (megahertz)1,000,0001,0000.00160,000,000
GHz (gigahertz)1,000,000,0001,000,0001,00060,000,000,000
rpm (revolution per minute)0.016666670.00001666670.00000001670

Conversions by starting unit

hertz (Hz)

Hz to kHzHz to MHzHz to GHzHz to rpm

kilohertz (kHz)

kHz to HzkHz to MHzkHz to GHzkHz to rpm

megahertz (MHz)

MHz to HzMHz to kHzMHz to GHzMHz to rpm

gigahertz (GHz)

GHz to HzGHz to kHzGHz to MHzGHz to rpm

revolutions per minute (rpm)

rpm to Hzrpm to kHzrpm to MHzrpm to GHz

Common questions

Is 1 GHz 1000 MHz?
Yes — frequency prefixes are decimal. CPU and radio figures step by 1000, unlike the 1024 steps of binary storage units.
How do I convert RPM to hertz?
Divide by 60. A 3000 rpm motor spins at 50 Hz, which is why 50 Hz mains regions use 3000/3600 rpm synchronous speeds.
Why do monitors list refresh in Hz?
Refresh rate is cycles per second too: 60 Hz means the panel redraws 60 times each second, so the unit is identical to radio frequency.

Can't find the pair? Try the full category list or the main converter.