Frequency Converter
Convert between hertz, kilohertz, megahertz, gigahertz and RPM.
Frequency shows up everywhere at wildly different scales: audio lives in hertz and kilohertz, radio in megahertz, CPUs in gigahertz, and rotating machinery in revolutions per minute. They all measure the same thing — cycles per unit of time — but jumping between scales mentally gets error-prone once prefixes stack up.
This converter moves any value between Hz, kHz, MHz, GHz and RPM instantly. Use it to translate a motor's RPM into hertz for vibration analysis, compare a radio band in MHz against a clock speed in GHz, or scale an audio frequency without counting zeros by hand.
How to use Frequency Converter
- 1
Enter the frequency value
Type the number you want to convert.
- 2
Select the source unit
Hz, kHz, MHz, GHz or RPM.
- 3
Select the target unit
The equivalent frequency appears instantly.
Features
- Covers Hz through GHz plus rotational RPM
- Instant bidirectional conversion
- Precise SI prefix factors with no rounding surprises
Frequently asked questions
Common mistakes to avoid
- Treating RPM and Hz as interchangeable without dividing by 60.
- Slipping a factor of 1,000 when moving across two SI prefixes at once (e.g. kHz to GHz is ×10⁶, not ×10³).
Get new tools in your inbox
One email a month with new tools, guides, and updates. No spam, unsubscribe anytime.