Hertz to Millihertz Converter
Convert Hertz (Hz) to Millihertz (mHz) instantly. 1 Hz = 1,000 mHz.
Frequency Converter
13 units available
1 Hz = 1,000 mHz
Formula:
mHz = Hz × 1,000With your value: 1 Hz = 1,000 mHz
Other Hertz to Millihertz conversions
Hertz to Millihertz Conversion Table
| Hertz (Hz) | Millihertz (mHz) |
|---|---|
| 0.5 | 500 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
Millihertz to Hertz Conversion Table
| Millihertz (mHz) | Hertz (Hz) |
|---|---|
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 15 | 0.015 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Hertz (Hz)
Frequency
Derived from the hertz (1 Hz = 1 s⁻¹), traceable to the SI second.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Millihertz (mHz)
Frequency
Derived from the hertz (1 Hz = 1 s⁻¹), traceable to the SI second.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Hertz to Millihertz
To convert from Hertz (Hz) to Millihertz (mHz), multiply the value by 1,000.
Formula: mHz = Hz × 1,000
Reverse: Hz = mHz × 0.001
Step-by-Step Example
- Start with your value in Hertz. For example: 5 Hz
- Multiply by the conversion factor: 5 x 1,000
- The result is: 5,000 mHz
About Hertz
The hertz (Hz) is a unit of frequency. One hertz equals 1 hertz. UnitConvertLab converts it against every other frequency unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: frequency calculations, engineering and science, education.
About Millihertz
The millihertz (mHz) is a unit of frequency. One millihertz equals 0.001 hertzs. UnitConvertLab converts it against every other frequency unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: frequency calculations, engineering and science, education.
Frequently Asked Questions
How many Millihertz are in 1 Hertz?
There are exactly 1,000 Millihertz in 1 Hertz. This means the conversion factor from Hertz to Millihertz is 1,000.
What is the formula to convert Hertz to Millihertz?
The formula to convert Hertz to Millihertz is: mHz = Hz × 1,000. For example, to convert 10 Hertz to Millihertz, you would multiply 10 by 1,000.
What is a Hertz?
The hertz (Hz) is a unit of frequency. One hertz equals 1 hertz. UnitConvertLab converts it against every other frequency unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What is a Millihertz?
The millihertz (mHz) is a unit of frequency. One millihertz equals 0.001 hertzs. UnitConvertLab converts it against every other frequency unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Hertz?
The Hertz is commonly used in frequency calculations, engineering and science, education.
Related Frequency Conversions
Cite this page
UnitConvertLab. (2026). Hertz to Millihertz converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/hertz-to-millihertz