Lectures on Physics has been derived from Benjamin Crowell's Light and Matter series of free introductory textbooks on physics. See the editorial for more information....

Atmospheric pressure in U.S. and metric units

A figure that many people in the U.S. remember is that atmospheric pressure is about 15 pounds per square inch. What is this in metric units?.

Only pressure differences are normally significant.

Last Update: 2009-06-21