# How do you calulate average speed?

Since speed is expressed in terms of distance and time (e.g., miles per hour or feet per second), average speed is derived by dividing the distance traveled by the amount of time taken to travel that distance. For example, if it take 4 hours to travel 200 miles, average speed = 200 mi/4 hrs = 50 miles per hour.

### What is average speed and how is it different from speed?

the average speed is the speed you calculated when you have different speeds at different points or distances. It is different from speed because average speed has many speeds averaged into one speed ..while speed is specifically only one. Speed is instantaneous speed, whereas average speed is the average of the instantaneous speeds over an interval (time).