Convert Megahertz to RPM
Megahertz to rpm is the conversion you need when a frequency in MHz has to be read as revolutions per minute — cycles per second turned into cycles per minute. One megahertz is exactly 60,000,000 rpm, because a megahertz is a million cycles a second and every second holds 60 of those in a minute.
Megahertz to Revolutions per minute conversion table
| Megahertz (MHz) | Revolutions per minute (rpm) |
|---|---|
| 1 | 60,000,000 |
| 2 | 120,000,000 |
| 3 | 180,000,000 |
| 5 | 300,000,000 |
| 10 | 600,000,000 |
| 20 | 1,200,000,000 |
| 50 | 3,000,000,000 |
| 100 | 6,000,000,000 |
| 500 | 30,000,000,000 |
| 1,000 | 60,000,000,000 |
The formula
To convert megahertz to rpm, multiply the number of megahertz by 60,000,000:
rpm = megahertz × 60,000,000
A worked example
Say you have 1 MHz and want it in revolutions per minute:
1 × 60,000,000 = 60,000,000 rpm
So 1 megahertz is exactly 60,000,000 rpm.
Why the number is exact
Two exact facts stack up here. A megahertz is exactly 1,000,000 hertz — cycles per second — because "mega" means exactly one million. And a minute is exactly 60 seconds, so 1 hertz is exactly 60 rpm. Put together, 1 MHz is 1,000,000 × 60 = 60,000,000 rpm, an exact figure with no measurement or rounding involved.
When you'll use it
Reading a frequency in MHz as a per-minute rate, or bridging cycles-per-second specs and revolutions-per-minute figures without losing the exact count.
Frequently asked questions
How many rpm are in a megahertz?
Exactly 60,000,000 rpm. A megahertz is 1,000,000 cycles per second, and a minute has 60 seconds, so you multiply by 60 to get 60 million revolutions per minute.
Where does the 60 come from?
From the minute. Hertz counts cycles per second and rpm counts them per minute, so 1 Hz is 60 rpm. Scaling that up, 1 MHz — a million hertz — is 60,000,000 rpm.
Is the megahertz to rpm conversion exact?
Yes. There are exactly 60 seconds in a minute and exactly 1,000,000 hertz in a megahertz, so 1 MHz is exactly 60,000,000 rpm with nothing rounded away.