Work out average speed instantly with clear inputs, formula shown and shareable results.
Average speed is total distance over total time, and it deliberately ignores what happened in between - a journey with stops has a lower average speed than its cruising speed. It is a scalar, so a return trip covering 150 m each way in 20 s total averages 15 m/s even though the average velocity is zero.
Average speed
v = total distance / total time
Unit conversion
km/h = m/s x 3.6
Not usually. Driving 60 km at 60 km/h then 60 km at 30 km/h averages 40 km/h, not 45, because more time is spent at the slower speed.
Velocity uses displacement rather than path length, so a closed loop has zero average velocity but a positive average speed.