Convert Microsecond to Millisecond
Use this free converter to change microseconds (µs) into milliseconds (ms). Microsecond and millisecond both measure time. As a quick reference, 1 µs equals 0.001 ms, and 1 ms equals 1000 µs.
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Millisecond (ms)
0.001
1 µs = 0.001 ms
Time conversion table
| Microsecond | Millisecond |
|---|---|
| 0.01 | 0.00001 |
| 0.1 | 0.0001 |
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1,000 | 1 |
How to convert Microsecond to Millisecond
Multiply the microsecond value by 0.001 to get milliseconds.
- Enter the number of microseconds you want to convert.
- The converter instantly shows the equivalent value in milliseconds.
- Worked example: 15 µs × 0.001 = 0.015 ms.
- Use the swap button to reverse the conversion (millisecond to microsecond).
About these units
Microsecond (µs)
- Definition
- A microsecond (µs) is one millionth of a second.
- History
- It uses the SI prefix "micro-" (one millionth).
- Current use
- Microseconds measure fast electronic events and instruction timing.
Millisecond (ms)
- Definition
- A millisecond (ms) is one thousandth of a second.
- History
- It uses the SI prefix "milli-" and became important with electronics and computing.
- Current use
- Milliseconds measure response times, network latency, and reaction speed.
Frequently asked questions
How many milliseconds are in a microsecond?
There are 0.001 ms in 1 µs. To convert, multiply the number of microseconds by 0.001.
How do I convert microseconds to milliseconds?
Multiply the microsecond value by 0.001 to get milliseconds. For example, 10 µs = 0.01 ms.
Is this microsecond-to-millisecond converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Microsecond to other time units
| Unit | 1 Microsecond equals |
|---|---|
| Second (s) | 0.000001 s |
| Millisecond (ms) | 0.001 ms |
| Minute (min) | 1.6667e-8 min |
| Hour (h) | 2.7778e-10 h |
| Day (d) | 1.1574e-11 d |
| Week (wk) | 1.6534e-12 wk |
| Month (mo) | 3.8026e-13 mo |
| Year (yr) | 3.1688e-14 yr |