Megahertz to Hertz
An instant megahertz-to-hertz converter, with the formula and a reference table below.
| Megahertz | Hertz |
|---|---|
| 1 MHz | 1000000 Hz |
| 2 MHz | 2000000 Hz |
| 3 MHz | 3000000 Hz |
| 5 MHz | 5000000 Hz |
| 10 MHz | 10000000 Hz |
| 25 MHz | 25000000 Hz |
| 50 MHz | 50000000 Hz |
| 100 MHz | 100000000 Hz |
How to use
- Enter a value in the Megahertz field.
- The Hertz figure appears immediately — no button to press.
- Typing in the Hertz field converts back to Megahertz the same way.
- Use the reference table for the values that come up most often.
Megahertz to Hertz formula
The factor from megahertz to hertz is 1000000.
Hz = MHz × 1000000
Why this factor: the megahertz and the hertz are both defined against the hertz, so dividing one definition by the other gives 1000000 directly. Both definitions are set out in full below.
To go the other way, divide by 1000000 — or use the Hertz to Megahertz converter, which is the same calculation reversed.
Worked example
Start with 60 MHz. Multiply by 1000000 to get 60000000 Hz.
60 MHz × 1000000 = 60000000 Hz
The converter above does this for any value you type, in either direction.
What is a megahertz?
A megahertz is one million cycles per second.
Definition: Exactly 1×10⁶ hertz.
Where it is used: FM radio and broadcast bands, memory clock speeds, and radio communications.
What is a hertz?
The hertz is the SI unit of frequency — one cycle per second.
Definition: Defined as one reciprocal second (s⁻¹). Named after Heinrich Hertz.
Where it is used: Mains electricity (50 or 60 Hz), audio frequencies, and display refresh rates.
Megahertz vs Hertz
The megahertz is a metric unit while the hertz is an SI unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many hertz are in a megahertz?
One megahertz equals 1000000 hertz.
What is the formula to convert megahertz to hertz?
Multiply the number of megahertz by 1000000. To reverse it, divide by 1000000 instead.
How do I convert hertz back to megahertz?
Divide by 1000000, which is the same as multiplying by 1e-06.
How many hertz are in 10 megahertz?
10 MHz works out to 10000000 Hz.
How is the megahertz defined?
Exactly 1×10⁶ hertz.