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Convert between Hz, kHz, MHz, GHz, and RPM.
📡 CPU clocks in GHz, audio in Hz-kHz, rotation in RPM.
This tool converts between frequency units: hertz, kilohertz, megahertz, gigahertz, and rotations per minute (RPM). Frequency measures how often something repeats per second.
In electronics and communications, the frequency band determines what a signal can do. Lower frequencies (AM radio) travel farther but carry less data; higher frequencies (WiFi, 5G) carry more data but over shorter distances. This trade-off shapes the entire design of wireless systems.
The Frequency Converter converts frequency converterfrom one unit to another using the exact internationally defined conversion factors. Type a value, choose your source and target units, and the converted result is shown instantly — no waiting, no page reload.
Manual conversion is error-prone because it means memorizing ratios (how many feet in a meter, how many pints in a liter). This tool removes that friction: the conversion factor is built in, and the math is done to full precision with no rounding until the final displayed number.
Common uses: people reach for this tool when they need to look up a hz to mhz converter, ghz to hz calculator, rpm to hz online, or khz to mhz frequency.
Browser-based tools like this one have a few real advantages over installed software or manual methods:
The Frequency Converter is based on the following formula:
f = 1/T 1 kHz = 1000 Hz 1 MHz = 10⁶ Hz 1 GHz = 10⁹ Hz Hz = rpm ÷ 60
Variables: f = frequency in hertz T = period, the seconds per cycle Hz = hertz, cycles per second kHz, MHz, GHz = kilo-, mega-, gigahertz (powers of 1000) rpm = revolutions per minute
Hertz counts cycles per second; rpm counts rotations per minute, so divide rpm by 60 to get hertz. Frequency and period are reciprocals: the 50 Hz mains supply completes one cycle every 1/50 s = 20 ms.
Worked example: A motor spinning at 1800 rpm: Hz = 1800 ÷ 60 = 30 Hz Period: T = 1/30 ≈ 0.0333 s = 33.3 ms per revolution Reverse: 30 Hz × 60 = 1800 rpm
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