Convert Microseconds to Milliseconds

Q: How many milliseconds are in a microsecond?

There are 0.001 milliseconds in one microsecond.

Q: How many microseconds are in a millisecond?

There are 1,000 microseconds in one millisecond.

1 microsecond = 0.001 milliseconds. Type any value below to convert in either direction — the calculation happens in your browser.

microseconds

milliseconds

Microseconds to Milliseconds formula

Multiply the number of microseconds by 0.001 to get milliseconds.

milliseconds = microseconds × 0.001

To go the other way: divide the number of milliseconds by 0.001, or multiply by 1000.

microseconds = milliseconds ÷ 0.001

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
15 µs	0.015 ms
20 µs	0.02 ms
25 µs	0.025 ms
30 µs	0.03 ms
40 µs	0.04 ms
50 µs	0.05 ms
75 µs	0.075 ms
100 µs	0.1 ms
250 µs	0.25 ms
500 µs	0.5 ms
1,000 µs	1 ms

Milliseconds to Microseconds conversion table

Milliseconds	Microseconds
1 ms	1,000 µs
2 ms	2,000 µs
3 ms	3,000 µs
4 ms	4,000 µs
5 ms	5,000 µs
6 ms	6,000 µs
7 ms	7,000 µs
8 ms	8,000 µs
9 ms	9,000 µs
10 ms	10,000 µs

About the microsecond

A microsecond is one millionth of a second, the scale of memory access and high-frequency trading.

About the millisecond

A millisecond is one thousandth of a second — the unit of web latency and animation timing.

Frequently asked questions

How many milliseconds are in a microsecond?

There are 0.001 milliseconds in one microsecond.

How many microseconds are in a millisecond?

There are 1,000 microseconds in one millisecond.

Is this conversion exact?

The ratio between the microsecond and the millisecond is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.

What is 10 microseconds in milliseconds?

10 microseconds equals 0.01 milliseconds.

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