Convert Hertz to Megahertz
1 hertz is 0.000001 MHz. One hertz is exactly 0.000001 megahertz.
One hertz is 1.0000 × 10^-6 megahertz. To convert hertz to megahertz, multiply by 1.0000 × 10^-6; to go the other way, divide by 1.0000 × 10^-6 or multiply by 1000000. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Special Publication 811. One cycle per second.
Factor checked against the defining standard · How we check
- Hertz × 1.0000 × 10^-6
1 * 0.0000010 MHz
1 hertz in every frequency unit
| Unit | Value | Exact factor |
|---|---|---|
| hertz (as entered) | 1 Hz | — |
| kilohertz | 0.001 kHz | × 0.001 |
| megahertz | 0.000001 MHz | × 0.000001 |
| gigahertz | 0.000000001 GHz | × 0.000000001 |
| terahertz | 0.000000000001 THz | × 0.000000000001 |
| revolutions per minute | 60 rpm | × 60 |
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 hertz to megahertz? The converter and the working
- 1.Take the measurement in hertz.
- 2.Multiply by 1.0000 × 10^-6 — that is how many megahertz fit in one hertz.
- 3.To go back the other way, divide by 1.0000 × 10^-6, or multiply by 1000000.
Worked example: 25 hertz to megahertz
- Formula
- Hz × 1.0000 × 10^-6 = MHz
- Arithmetic
- 25 × 1.0000 × 10^-6 = 0.000025 MHz
- Answer
- 25 Hz = 0.000025 MHz
The factor is rounded for display; the figure above is computed from the full value.
Hertz to megahertz conversion table
| Hertz | Megahertz |
|---|---|
| 1 Hz | 0.000001 MHz |
| 2 Hz | 0.000002 MHz |
| 3 Hz | 0.000003 MHz |
| 4 Hz | 0.000004 MHz |
| 5 Hz | 0.000005 MHz |
| 6 Hz | 0.000006 MHz |
| 7 Hz | 0.000007 MHz |
| 8 Hz | 0.000008 MHz |
| 9 Hz | 0.000009 MHz |
| 10 Hz | 0.00001 MHz |
| 12 Hz | 0.000012 MHz |
| 15 Hz | 0.000015 MHz |
| 20 Hz | 0.00002 MHz |
| 25 Hz | 0.000025 MHz |
| 50 Hz | 0.00005 MHz |
| 100 Hz | 0.0001 MHz |
| 200 Hz | 0.0002 MHz |
| 300 Hz | 0.0003 MHz |
| 500 Hz | 0.0005 MHz |
| 1000 Hz | 0.001 MHz |
| 2000 Hz | 0.002 MHz |
| 5000 Hz | 0.01 MHz |
| 10000 Hz | 0.01 MHz |
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.
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.
How many megahertz are in a hertz?
One hertz is 1.0000 × 10^-6 megahertz. Going the other way, one megahertz is 1000000 hertz. 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 hertz.
Source: NIST Special Publication 811 — the hertz, and SI prefixes
Cite this page
- APA
- Rule Calculator. (2026). Convert Hertz to megahertz. Rule Calculator. https://rulecalculators.com/convert/hertz-to-megahertz
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- Chicago
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Questions people actually ask
- How many megahertz are in a hertz?
- 1.0000 × 10^-6. A million hertz. FM radio sits at 88 to 108 MHz, and a processor clock was quoted here until the late 1990s.
- How do I convert megahertz back to hertz?
- Divide by 1.0000 × 10^-6, or multiply by 1000000 — they are the same operation.
Other frequency conversions
Megahertz to hertz — the same conversion the other way.