Microsecond to Millisecond Converter
Convert Microsecond (µs) to Millisecond (ms) instantly. 1 µs = 0.001 ms.
Time Converter
21 units available
1 µs = 0.001 ms
Formula:
ms = µs × 0.001With your value: 1 µs = 0.001 ms
How big is that?
Everyday references on a logarithmic scale, all expressed in microsecond so you can sanity-check the result.
Other Microsecond to Millisecond conversions
Microsecond to Millisecond Conversion Table
| Microsecond (µs) | Millisecond (ms) |
|---|---|
| 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 |
Millisecond to Microsecond Conversion Table
| Millisecond (ms) | Microsecond (µs) |
|---|---|
| 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 |
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.
Microsecond (µs)
Time
Traceable to the second, defined by fixing the caesium-133 hyperfine transition frequency at 9 192 631 770 Hz.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Millisecond (ms)
Time
Traceable to the second, defined by fixing the caesium-133 hyperfine transition frequency at 9 192 631 770 Hz.
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 Microsecond to Millisecond
To convert from Microsecond (µs) to Millisecond (ms), multiply the value by 0.001.
Formula: ms = µs × 0.001
Reverse: µs = ms × 1,000
Step-by-Step Example
- Start with your value in Microsecond. For example: 5 µs
- Multiply by the conversion factor: 5 x 0.001
- The result is: 0.005 ms
About Microsecond
The microsecond (µs) is a unit of time. One microsecond equals 1.000000 × 10^-6 seconds. UnitConvertLab converts it against every other time unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: time calculations, engineering and science, education.
About Millisecond
The millisecond (ms) is a unit of time. One millisecond equals 0.001 seconds. UnitConvertLab converts it against every other time unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: time calculations, engineering and science, education.
Frequently Asked Questions
How many Millisecond are in 1 Microsecond?
There are exactly 0.001 Millisecond in 1 Microsecond. This means the conversion factor from Microsecond to Millisecond is 0.001.
What is the formula to convert Microsecond to Millisecond?
The formula to convert Microsecond to Millisecond is: ms = µs × 0.001. For example, to convert 10 Microsecond to Millisecond, you would multiply 10 by 0.001.
What is a Microsecond?
The microsecond (µs) is a unit of time. One microsecond equals 1.000000 × 10^-6 seconds. UnitConvertLab converts it against every other time unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What is a Millisecond?
The millisecond (ms) is a unit of time. One millisecond equals 0.001 seconds. UnitConvertLab converts it against every other time unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Microsecond?
The Microsecond is commonly used in time calculations, engineering and science, education.
Related Time Conversions
Cite this page
UnitConvertLab. (2026). Microsecond to Millisecond converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/microsecond-to-millisecond