What units should I use?

Keep units consistent: km with km/h, miles with mph. Convert units before calculating.

How do I calculate average speed?

Total distance ÷ total time. Note: this is different from the average of two speeds.

Speed Distance Time Formula on CalcAll — free educational content with detailed examples.

What units should I use?: Keep units consistent: km with km/h, miles with mph. Convert units before calculating.
How do I calculate average speed?: Total distance ÷ total time. Note: this is different from the average of two speeds.