Convert Megahertz to Hertz
1 megahertz is 1,000,000 Hz. One megahertz is exactly 1000000 hertz.
One megahertz is 1000000 hertz. To convert megahertz to hertz, multiply by 1000000; to go the other way, divide by 1000000 or multiply by 1.0000 × 10^-6. The factor is exact rather than rounded: it follows from NIST Special Publication 811. A million hertz.
Factor checked against the defining standard · How we check
- Megahertz × 1000000
1 * 10000001,000,000 Hz
1 megahertz in every frequency unit
| Unit | Value | Exact factor |
|---|---|---|
| hertz | 1,000,000 Hz | × 1,000,000 |
| kilohertz | 1,000 kHz | × 1,000 |
| megahertz (as entered) | 1 MHz | — |
| gigahertz | 0.001 GHz | × 0.001 |
| terahertz | 0.000001 THz | × 0.000001 |
| revolutions per minute | 60,000,000 rpm | × 60,000,000 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert megahertz to hertz? The converter and the working
- 1.Take the measurement in megahertz.
- 2.Multiply by 1000000 — that is how many hertz fit in one megahertz.
- 3.To go back the other way, divide by 1000000, or multiply by 1.0000 × 10^-6.
Worked example: 25 megahertz to hertz
- Formula
- MHz × 1000000 = Hz
- Arithmetic
- 25 × 1000000 = 25,000,000 Hz
- Answer
- 25 MHz = 25,000,000 Hz
The factor is exact, so this figure is exact too — only the display is rounded.
Megahertz to hertz conversion table
| Megahertz | Hertz |
|---|---|
| 1 MHz | 1,000,000 Hz |
| 2 MHz | 2,000,000 Hz |
| 3 MHz | 3,000,000 Hz |
| 4 MHz | 4,000,000 Hz |
| 5 MHz | 5,000,000 Hz |
| 6 MHz | 6,000,000 Hz |
| 7 MHz | 7,000,000 Hz |
| 8 MHz | 8,000,000 Hz |
| 9 MHz | 9,000,000 Hz |
| 10 MHz | 10,000,000 Hz |
| 12 MHz | 12,000,000 Hz |
| 15 MHz | 15,000,000 Hz |
| 20 MHz | 20,000,000 Hz |
| 25 MHz | 25,000,000 Hz |
| 50 MHz | 50,000,000 Hz |
| 100 MHz | 100,000,000 Hz |
| 200 MHz | 200,000,000 Hz |
| 300 MHz | 300,000,000 Hz |
| 500 MHz | 500,000,000 Hz |
| 1000 MHz | 1,000,000,000 Hz |
| 2000 MHz | 2,000,000,000 Hz |
| 5000 MHz | 5,000,000,000 Hz |
| 10000 MHz | 10,000,000,000 Hz |
What is a megahertz?
A million hertz. FM radio sits at 88 to 108 MHz, and a processor clock was quoted here until the late 1990s.
What is a hertz?
One cycle per second. The SI unit is defined as a reciprocal second, which is why it is used for periodic events and never for a rate of something that is not periodic.
How many hertz are in a megahertz?
One megahertz is 1000000 hertz, exactly. Going the other way, one hertz is 1.0000 × 10^-6 megahertz. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every frequency unit here
The whole group — 6 units with their symbols and the size of each one in hertzs — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a megahertz.
Source: NIST Special Publication 811 — the hertz, and SI prefixes
Cite this page
- APA
- Rule Calculator. (2026). Convert Megahertz to hertz. Rule Calculator. https://rulecalculators.com/convert/megahertz-to-hertz
- MLA
- "Convert Megahertz to hertz." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/megahertz-to-hertz.
- Chicago
- Rule Calculator. "Convert Megahertz to hertz." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/megahertz-to-hertz.
The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.
Questions people actually ask
- How many hertz are in a megahertz?
- 1000000. One cycle per second. The SI unit is defined as a reciprocal second, which is why it is used for periodic events and never for a rate of something that is not periodic.
- How do I convert hertz back to megahertz?
- Divide by 1000000, or multiply by 1.0000 × 10^-6 — they are the same operation.
Other frequency conversions
Hertz to megahertz — the same conversion the other way.