Frequency Converter
The frequency converter lets you quickly and accurately convert between hertz, kilohertz, megahertz, gigahertz, terahertz, and RPM. Whether you're working in electronics, telecommunications, or mechanical engineering, this tool handles the math instantly.
Frequency conversions are essential in electronics, radio communications, signal processing, audio engineering, and mechanical systems. Different domains use different units, making a reliable converter indispensable for accurate work.
How it works
Frequency conversions use standardized factors with hertz (Hz) as the base unit. Key relationships: 1 kHz = 1,000 Hz, 1 MHz = 1,000,000 Hz, 1 GHz = 10⁹ Hz, 1 THz = 10¹² Hz. For rotational speed: 1 Hz = 60 RPM (revolutions per minute).
Use cases
- Converting radio frequencies between Hz, kHz, MHz, and GHz
- Translating processor clock speeds between MHz and GHz
- Converting between RPM and Hz for motor and engine specifications
- Working with signal frequencies in telecommunications and audio engineering
Frequently asked questions
How do I convert Hz to RPM?
Multiply by 60, since 1 Hz equals one cycle per second and there are 60 seconds in a minute: 1 Hz = 60 RPM. For example, a motor spinning at 50 Hz rotates at 3,000 RPM. To go the other way, divide RPM by 60 to get Hz.
How many Hz are in a MHz and a GHz?
1 MHz equals 1,000,000 Hz (10⁶), and 1 GHz equals 1,000,000,000 Hz (10⁹). The chain of prefixes is: 1 kHz = 1,000 Hz, 1 MHz = 1,000 kHz, 1 GHz = 1,000 MHz, and 1 THz = 1,000 GHz. Each step up multiplies by 1,000.
What is frequency and what unit is it measured in?
Frequency is the number of cycles of a repeating event per unit of time. The SI unit is the hertz (Hz), where 1 Hz means one cycle per second. Larger multiples — kHz, MHz, GHz, THz — are used for radio signals, processor clocks, and other high-frequency phenomena.
How do I convert 3,000 RPM to Hz?
Divide by 60: 3,000 RPM ÷ 60 = 50 Hz. RPM counts revolutions per minute while Hz counts cycles per second, so the conversion factor is always 60. This is common when comparing motor and engine specifications against electrical frequencies.
What is the difference between MHz and GHz in processors?
1 GHz equals 1,000 MHz, so a 3.5 GHz processor runs its clock at 3,500 MHz — 3.5 billion cycles per second. Clock speed indicates how many cycles a CPU core completes per second, though real-world performance also depends on architecture and instructions executed per cycle.