Convert Microseconds to Milliseconds
1 microsecond is 0.001 ms. One microsecond is exactly 0.001 milliseconds.
One microsecond is 0.001 milliseconds. To convert microseconds to milliseconds, multiply by 0.001; to go the other way, divide by 0.001 or multiply by 1000. The factor is exact rather than rounded: it follows from BIPM SI Brochure. One millionth of a second.
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Milliseconds
0.001 ms
- Microseconds × 0.001
value * 0.0010.001 ms
1 microsecond in every time unit
| Unit | Value | Exact factor |
|---|---|---|
| microseconds (as entered) | 1 µs | — |
| milliseconds | 0.001 ms | × 0.001 |
| seconds | 0.000001 s | × 0.000001 |
| minutes | 0.00000001666666667 min | × 0.0000000166666666667 |
| hours | 0.0000000002777777778 h | × 0.000000000277777777778 |
| days | 0.00000000001157407407 d | × 0.0000000000115740740741 |
| weeks | 0.000000000001653439153 wk | × 0.00000000000165343915344 |
| months | 0.0000000000003802648621 mo | × 0.000000000000380264862082 |
| years | 0.00000000000003168873851 yr | × 0.0000000000000316887385068 |
Factors are entered by hand from BIPM SI Brochure rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert microseconds to milliseconds?
- 1.Take the measurement in microseconds.
- 2.Multiply by 0.001 — that is how many milliseconds fit in one microsecond.
- 3.To go back the other way, divide by 0.001, or multiply by 1000.
Microseconds to milliseconds conversion table
| Microseconds | Milliseconds |
|---|---|
| 1 µs | 0.001 ms |
| 2 µs | 0.002 ms |
| 3 µs | 0.003 ms |
| 4 µs | 0.004 ms |
| 5 µs | 0.005 ms |
| 6 µs | 0.006 ms |
| 7 µs | 0.007 ms |
| 8 µs | 0.008 ms |
| 9 µs | 0.009 ms |
| 10 µs | 0.01 ms |
| 12 µs | 0.012 ms |
| 15 µs | 0.015 ms |
| 20 µs | 0.02 ms |
| 25 µs | 0.025 ms |
| 50 µs | 0.05 ms |
| 100 µs | 0.1 ms |
What are microseconds and milliseconds?
- Microsecond (µs)
- One millionth of a second. The scale audio latency and network round trips inside a data centre are measured on.
- Millisecond (ms)
- One thousandth of a second. Human reaction time runs about 250 ms, and a frame at 60 fps lasts 16.7 ms.
Source: BIPM SI Brochure — the second, and units accepted for use with the SI
Questions people actually ask
- How many milliseconds are in a microsecond?
- 0.001. One thousandth of a second. Human reaction time runs about 250 ms, and a frame at 60 fps lasts 16.7 ms.
- How do I convert milliseconds back to microseconds?
- Divide by 0.001, or multiply by 1000 — they are the same operation.
Other time conversions
Milliseconds to microseconds — the same conversion the other way.