What is millisecond?

A millisecond is a unit of time equal to one thousandth of a second. It is used in computing, networking, audio and video processing, and measuring reaction times and signal latencies.

What is nanosecond?

A nanosecond is a unit of time equal to one billionth of a second. It is critical in computer processor timing, high-frequency trading, optical communications, and physics experiments.

Worked examples

1 millisecond = 1,000,000 nanosecond

1 nanosecond = 1.000000e-09 second

More Time conversions

• Convert millisecond to second
• Convert millisecond to minute
• Convert millisecond to hour
• Convert millisecond to day
• Convert millisecond to week
• Convert millisecond to year (365 d)
• Convert millisecond to microsecond
• Convert millisecond to nanosecond
• Convert millisecond to century (100 yr)

Assumption: year is defined as 365 days and century values are approximate.