Millihertz is 0.001 hertz units.
Millihertz to Microhertz Converter — mHz to uHz
Convert Millihertz (mHz) to Microhertz (uHz) using the exact conversion factor (1 millihertz = 1,000 microhertz). See the formula, worked examples, and conversion table.
Millihertz to Microhertz converter
Converter
Scientific Units Converter
Convert SI derived units, scientific notation-friendly units, atomic units, and lab measurements.
Context values
Some unit families need one extra value for a physically accurate result.
Microhertz is 0.000001 hertz units.
Result = input x 0.001 / 1e-6.
Frequency units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Millihertz to Microhertz
Millihertz and Microhertz are both scientific-measurement units, spanning everything from atomic and laboratory scales to astronomical distances — the kind of conversion that comes up constantly in physics, chemistry, and astronomy when a result needs to move between conventions used in different subfields. Specifically: Millihertz is 0.001 hertz units, and microhertz is 0.000001 hertz units.
Formula
microhertz = millihertz × 1000
This factor comes from each unit's defined relationship to the category's base unit: 1 millihertz equals 0.001 base units, and 1 microhertz equals 0.000001 base units, so dividing one by the other gives the direct millihertz-to-microhertz factor of 1000.
Simple example
1 mHz × 1000 = 1,000 uHz
1 millihertz = 1,000 microhertz.
Real-world example
10 mHz × 1000 = 10,000 uHz
10 millihertz = 10,000 microhertz.
Conversion table
| Millihertz (mHz) | Microhertz (uHz) |
|---|---|
| 0.001 mHz | 1 uHz |
| 0.01 mHz | 10 uHz |
| 1 mHz | 1,000 uHz |
| 10 mHz | 10,000 uHz |
| 100 mHz | 100,000 uHz |
| 1,000 mHz | 1,000,000 uHz |
Reverse conversion: Microhertz to Millihertz
1 uHz × 0.001 = 0.001 mHz
1 microhertz = 0.001 millihertz.
millihertz = microhertz × 0.001
For a page dedicated to this direction, see Microhertz to Millihertz.
Understanding the Millihertz (mHz)
Millihertz is 0.001 hertz units.
Understanding the Microhertz (uHz)
Microhertz is 0.000001 hertz units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many microhertz are in 1 millihertz?
1 millihertz equals 1,000 microhertz, using the exact defined conversion factor rather than an estimate.
How do I convert millihertz to microhertz?
Multiply the millihertz value by 1000. The converter above does this instantly to whatever precision you set.
How do I convert microhertz back to millihertz?
Use the reverse factor: 1 microhertz equals 0.001 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 scientific units.
What is a microhertz?
Microhertz (uHz) is a unit of scientific units.
Is the millihertz to microhertz conversion exact?
Yes. Both millihertz and microhertz are defined by fixed standards rather than physical artifacts, so the factor of 1000 used above is exact to as many digits as you choose to display.
Why does this category span everything from atomic to astronomical scales?
Scientific work spans an enormous range of physical scales, from atomic distances (measured in angstroms or atomic mass units) to interstellar distances (measured in astronomical units or parsecs), so this category groups SI-derived and scale-specific units that researchers commonly need to convert between within their field.