Millihertz is 0.001 hertz units.
Millihertz to Nanohertz Converter — mHz to nHz
Convert Millihertz (mHz) to Nanohertz (nHz) using the exact conversion factor (1 millihertz = 1,000,000 nanohertz). See the formula, worked examples, and conversion table.
Millihertz to Nanohertz converter
Converter
Frequency Converter
Convert hertz, SI frequency prefixes, RPM, beats per minute, and angular frequency.
Context values
Some unit families need one extra value for a physically accurate result.
Nanohertz is 1e-9 hertz units.
Result = input x 0.001 / 1e-9.
Frequency uses hertz as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Millihertz to Nanohertz
Millihertz and Nanohertz both describe how fast something cycles or rotates, and the conversion is a routine part of reading a car tachometer or motor spec sheet against a scientific frequency figure. Specifically: Millihertz is 0.001 hertz units, and nanohertz is 1e-9 hertz units.
Formula
nanohertz = millihertz × 1000000
This factor comes from each unit's defined relationship to the category's base unit: 1 millihertz equals 0.001 base units, and 1 nanohertz equals 1e-9 base units, so dividing one by the other gives the direct millihertz-to-nanohertz factor of 1000000.
Simple example
1 mHz × 1000000 = 1,000,000 nHz
1 millihertz = 1,000,000 nanohertz.
Real-world example
1,000 mHz × 1000000 = 1,000,000,000 nHz
1,000 millihertz = 1,000,000,000 nanohertz.
Conversion table
| Millihertz (mHz) | Nanohertz (nHz) |
|---|---|
| 60 mHz | 60,000,000 nHz |
| 600 mHz | 600,000,000 nHz |
| 1,000 mHz | 1,000,000,000 nHz |
| 3,000 mHz | 3,000,000,000 nHz |
| 6,000 mHz | 6,000,000,000 nHz |
| 10,000 mHz | 10,000,000,000 nHz |
Reverse conversion: Nanohertz to Millihertz
1 nHz × 0.000001 = 0.000001 mHz
1 nanohertz = 0.000001 millihertz.
millihertz = nanohertz × 0.000001
For a page dedicated to this direction, see Nanohertz to Millihertz.
Understanding the Millihertz (mHz)
Millihertz is 0.001 hertz units.
Understanding the Nanohertz (nHz)
Nanohertz is 1e-9 hertz units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanohertz are in 1 millihertz?
1 millihertz equals 1,000,000 nanohertz, using the exact defined conversion factor rather than an estimate.
How do I convert millihertz to nanohertz?
Multiply the millihertz value by 1000000. The converter above does this instantly to whatever precision you set.
How do I convert nanohertz back to millihertz?
Use the reverse factor: 1 nanohertz equals 0.000001 millihertz. You can also use the swap control in the converter above to flip the direction instantly.
What is a millihertz?
Millihertz (mHz) is a unit of frequency.
What is a nanohertz?
Nanohertz (nHz) is a unit of frequency.
Is the millihertz to nanohertz conversion exact?
Yes. Both millihertz and nanohertz are defined by fixed standards rather than physical artifacts, so the factor of 1000000 used above is exact to as many digits as you choose to display.