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Convert Microseconds to Milliseconds

1 microsecond = 0.001 milliseconds. Multiply the number of microseconds by 0.001.

Result
0.001

1 µs = 0.001 ms

Multiply the number of microseconds by 0.001.

Results are rounded for display. Double-check values for critical work.

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Popular time conversions

Microseconds to Milliseconds table

MicrosecondsMilliseconds
1 µs0.001 ms
2 µs0.002 ms
3 µs0.003 ms
4 µs0.004 ms
5 µs0.005 ms
10 µs0.01 ms
20 µs0.02 ms
25 µs0.025 ms
50 µs0.05 ms
100 µs0.1 ms
500 µs0.5 ms
1000 µs1 ms

About these units

The microsecond (µs) is a unit of time, equal to 0.000001 seconds.

The millisecond (ms) is a unit of time, equal to 0.001 seconds.

Going the other way, 1 millisecond = 1,000 microseconds. Time conversions look trivial until months and years appear — a month is not 30 days and a year is not 365. This converter uses the astronomical averages (30.44 days and 365.2425 days) so long-range answers stay accurate.

Frequently asked

How many milliseconds are in a microsecond?
1 microsecond = 0.001 milliseconds.
How do you convert microseconds to milliseconds?
Multiply the number of microseconds by 0.001.
What is 10 µs in ms?
10 µs = 0.01 ms.

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