How to Convert Hertz to Megahertz (Hz to MHz)
Frequency conversions apply to radio stations, Wi-Fi bands and processor speeds. This guide shows how to convert hertz into megahertz by hand, with examples and a quick-reference table.
The conversion
To convert hertz to megahertz, multiply the value by 1.000000e-06. To go the other way, divide by the same number (or multiply by 1,000,000). Because the factor is tiny, scientific notation keeps the numbers manageable.
Megahertz = hertz × 1.000000e-06
Worked examples
- 3 Hz = 3.000000e-6 MHz
- 12.5 Hz = 1.250000e-5 MHz
- 75 Hz = 7.500000e-5 MHz
Hertz to Megahertz table
| Hertz | Megahertz |
|---|---|
| 1 Hz | 1.000000e-6 MHz |
| 2 Hz | 2.000000e-6 MHz |
| 5 Hz | 5.000000e-6 MHz |
| 10 Hz | 1.000000e-5 MHz |
| 20 Hz | 2.000000e-5 MHz |
| 25 Hz | 2.500000e-5 MHz |
| 50 Hz | 5.000000e-5 MHz |
| 100 Hz | 1.000000e-4 MHz |
| 250 Hz | 0.00025 MHz |
| 500 Hz | 0.0005 MHz |
| 1,000 Hz | 0.001 MHz |
Common questions
Is Hz to MHz exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Megahertz to Hertz converter.
Mistakes to avoid
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Background
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
For any value, use the Hertz to Megahertz Converter or browse all frequency converters.
Run your own numbers: Hertz to Megahertz Converter