At One Place

Microseconds to milliseconds

1 microsecond in milliseconds
1 µs = 0.001 ms
ms = µs × 0.001

To convert microseconds to milliseconds, multiply by 0.001. The table below gives the values people look up most often, and the converter works for any number.

Microseconds to milliseconds table

Common microsecond values converted to milliseconds.
Microseconds Milliseconds
1 µs 0.001
2 µs 0.002
3 µs 0.003
4 µs 0.004
5 µs 0.005
10 µs 0.01
15 µs 0.015
20 µs 0.02
25 µs 0.025
30 µs 0.03
40 µs 0.04
50 µs 0.05
75 µs 0.075
100 µs 0.1
250 µs 0.25
500 µs 0.5
1,000 µs 1

How the conversion works

The relationship is ms = µs × 0.001. Both units measure time, so the conversion is a fixed factor that never changes.

Common questions

How many milliseconds are in one microsecond?
One microsecond equals 0.001 milliseconds. ms = µs × 0.001.
How do you convert microseconds to milliseconds?
Use ms = µs × 0.001. So 10 µs is 0.01 ms.
How many microseconds are in one millisecond?
One millisecond equals 1,000 microseconds, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked