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Hertz to Millihertz
Convert Hertz to Millihertz and get the exact value instantly.
1 Hz = 1000 mHz
About this conversion
To convert Hertz to Millihertz, multiply the number of Hertz by 1000.
Frequency spans hertz, kilohertz, megahertz and gigahertz across audio, radio and processor clock speeds, so a common unit makes two figures easy to compare.
Conversion table
| Hertz (Hz) | Millihertz (mHz) |
|---|---|
| 1 Hz | 1000 mHz |
| 2 Hz | 2000 mHz |
| 5 Hz | 5000 mHz |
| 10 Hz | 10000 mHz |
| 100 Hz | 100000 mHz |
How to use this converter
- Enter your Hertz value
Type any number into the Hertz field. It starts at 1 so you can read the rate straight away.
- Read the Millihertz result
The amount in Millihertz updates as you type, so there is no button to press and nothing to wait for.
- Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.
Frequently asked
- How many Millihertz are in one Hertz?
- One Hertz equals 1000 mHz. Enter any amount above to get an exact figure for your own value.
- Is this converter accurate?
- Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
- Do you upload the numbers I enter?
- No. The Hertz to Millihertz conversion runs entirely in your browser tab, and nothing you type is sent to a server.
- Does it work on my phone?
- Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.
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