How to Convert MHz to Hz: Formula, Table and Examples
Megahertz and hertz measure the same thing — cycles per second — at different scales. Converting MHz to Hz is one multiplication by 1,000,000. The factor is a fixed power of ten, so the result is exact and the only judgement call is how you display it.
3 min readPublished August 18, 2026Updated September 10, 2026
The MHz to Hz formula
Hertz is the SI base unit for frequency: one hertz is one cycle per second. The prefix mega- means one million, so one megahertz is exactly 1,000,000 hertz. There is no offset and nothing to round — only a decimal point that moves six places to the right.
Hz = MHz × 1,000,000
The factor is exact by definition, so it never needs adjusting.
- 0.1 MHz = 100,000 Hz — the lower edge of the FM broadcast band
- 1 MHz = 1,000,000 Hz — the definition of one megahertz
- 88 MHz = 88,000,000 Hz — a typical FM radio station
- 2,400 MHz = 2,400,000,000 Hz — a 2.4 GHz Wi-Fi channel
Worked examples
Every conversion follows the same three steps, which makes the answer easy to verify by hand.
- Write down the value in MHz and keep its full precision.
- Multiply by 1,000,000 — the decimal point moves six places to the right.
- Attach the Hz unit and check the magnitude: the result should have six more digits than the input.
Example 1: 2.4 MHz
2.4 × 1,000,000 = 2,400,000 Hz. The digits never change; only the position of the decimal point does.
Example 2: values below one megahertz
12.5 MHz × 1,000,000 = 12,500,000 Hz, and 0.25 MHz = 250,000 Hz. Fractions behave exactly like whole numbers because the factor is constant.
Example 3: verifying with the converter
Enter any value in the MHz to Hz converter and compare the result with the table below. Two independent checks are enough to trust a number that will be pasted into a datasheet or a test report.
MHz to Hz conversion table
These are the values readers look up most often. Every entry is exact.
| MHz | Hz | Typical reference |
|---|---|---|
| 0.001 | 1,000 | Navigation beacons |
| 0.01 | 10,000 | Time signal stations |
| 0.1 | 100,000 | Edge of the FM broadcast band |
| 0.5 | 500,000 | Start of the aircraft band |
| 1 | 1,000,000 | Definition of one megahertz |
| 10 | 10,000,000 | Shortwave broadcast |
| 88 | 88,000,000 | FM radio station |
| 100 | 100,000,000 | Top of the FM band |
| 500 | 500,000,000 | UHF television |
| 1,000 | 1,000,000,000 | One gigahertz |
Five mistakes that cause wrong answers
- Counting five zeros instead of six. Kilohertz multiplies by 1,000; megahertz multiplies by 1,000,000.
- Rounding before converting. Round the result in hertz, never the value you are about to multiply.
- Dropping the unit. "2400000" is not an answer; "2,400,000 Hz" is.
- Trusting a spreadsheet with a comma decimal separator. In some locales 2,4 means 2.4, and a mistyped value survives every later check.
- Mixing up frequency and storage. MHz converts to Hz, kHz and GHz — never to MB or GB.
When you need the result in hertz
Many specifications and formulas expect base SI units, so an answer in hertz is often the one that can be used directly.
- Radio and RF engineering, where filters and bandwidths are specified in hertz.
- Digital sampling, where the sample rate is compared with the signal frequency (the Nyquist limit).
- Processor and bus clocks, which are often quoted in MHz but configured in hertz.
- API payloads and test fixtures that reject prefixed units.
Quick answer
Frequently asked questions
How many hertz are in 1 MHz?
Exactly 1,000,000 Hz. The prefix mega- always means one million, so the factor never changes.
Is converting MHz to Hz the same as multiplying by 10⁶?
Yes. 10⁶ equals 1,000,000, so multiplying by one million and multiplying by 10⁶ are the same operation.
How do I convert hertz back to megahertz?
Divide the value in hertz by 1,000,000, or use the Hz to MHz converter, which applies the same exact factor in reverse.