Milliseconds to Microseconds Converter

1 millisecond (ms) equals 1,000 microseconds (µs).

Quick answer

1 millisecond = 1,000 microseconds
1 microsecond = 0.001 milliseconds
Formula: µs = ms × 1,000

From To 1,000

1 millisecond = 1,000 microseconds

How to convert milliseconds to microseconds

µs = ms × 1,000

To convert milliseconds to microseconds, multiply the number of milliseconds by 1,000.

Example: 18 ms to µs

Start with the value in milliseconds: 18 ms.
Multiply by 1,000: 18 × 1,000 = 18,000.
Result: 18 milliseconds = 18,000 microseconds.

Going the other way, 1 microsecond = 0.001 milliseconds, so to convert microseconds back to milliseconds you divide by the same number. See microseconds to milliseconds.

Milliseconds to microseconds conversion table

Milliseconds (ms)	Microseconds (µs)
0.25 ms	250 µs
0.5 ms	500 µs
0.75 ms	750 µs
1 ms	1,000 µs
1.5 ms	1,500 µs
2 ms	2,000 µs
2.5 ms	2,500 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
11 ms	11,000 µs
12 ms	12,000 µs
13 ms	13,000 µs
14 ms	14,000 µs
15 ms	15,000 µs
16 ms	16,000 µs
17 ms	17,000 µs
18 ms	18,000 µs
19 ms	19,000 µs
20 ms	20,000 µs
21 ms	21,000 µs
22 ms	22,000 µs
23 ms	23,000 µs
24 ms	24,000 µs
25 ms	25,000 µs
26 ms	26,000 µs
27 ms	27,000 µs
28 ms	28,000 µs
29 ms	29,000 µs
30 ms	30,000 µs
31 ms	31,000 µs
32 ms	32,000 µs
33 ms	33,000 µs
34 ms	34,000 µs
35 ms	35,000 µs

More ms to µs values

What is a millisecond?

The millisecond is one thousandth of a second.

More about milliseconds →

What is a microsecond?

The microsecond is one millionth of a second, the time scale of electronics, radar and high-speed photography.

More about microseconds →

Frequently asked questions

How many microseconds are in a millisecond?

One millisecond is 1,000 microseconds.

How many milliseconds are in a microsecond?

One microsecond is 0.001 milliseconds.

What is the formula to convert milliseconds to microseconds?

µs = ms × 1,000.