Convert microseconds to milliseconds
1 µs = 0.001 ms — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.001ms
As a fraction: 1/1000
1 µs = 0.001 ms
How to convert microseconds to milliseconds
Multiply the number of microseconds by 0.001 to get milliseconds.
The exact factor is 0.001 — as a fraction, 1/1000.
Microsecond to Millisecond conversion table
| Microseconds (µs) | Milliseconds (ms) |
|---|---|
| 1 µs | 0.001 |
| 2 µs | 0.002 |
| 3 µs | 0.003 |
| 5 µs | 0.005 |
| 10 µs | 0.01 |
| 20 µs | 0.02 |
| 25 µs | 0.025 |
| 50 µs | 0.05 |
| 100 µs | 0.1 |
| 250 µs | 0.25 |
| 500 µs | 0.5 |
| 1000 µs | 1 |
Millisecond to Microsecond conversion table
| Milliseconds (ms) | Microseconds (µs) |
|---|---|
| 1 ms | 1000 |
| 2 ms | 2000 |
| 3 ms | 3000 |
| 5 ms | 5000 |
| 10 ms | 10 000 |
| 20 ms | 20 000 |
| 25 ms | 25 000 |
| 50 ms | 50 000 |
| 100 ms | 100 000 |
| 250 ms | 250 000 |
| 500 ms | 500 000 |
| 1000 ms | 1 000 000 |
Frequently asked
How many milliseconds are in a microsecond?
One microsecond equals 0.001 milliseconds (µs → ms). That figure is exact, not rounded.
How do you convert microseconds to milliseconds?
Multiply the number of microseconds by 0.001 to get milliseconds.
What is 1 ms in microseconds?
One millisecond is 1000 microseconds.
What is 10 µs in ms?
10 µs = 0.01 ms.