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.

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.

Worked examples

1 nanosecond = 0.000001 millisecond

1 millisecond = 0.001 second