What this tool answers
This tool starts with an already known average velocity. It does not require the initial and final velocities, and it does not infer acceleration.
Formula
s = average velocity × elapsed time.
Worked example: A known average over twelve seconds
An average velocity of 7 m/s over 12 s gives displacement 7 × 12 = 84 m. Direction is represented by the sign of the average velocity.
Load these worked-example inputs
Limitations
Average velocity must refer to the same interval as the elapsed time. Displacement is signed and need not equal total distance travelled.
Frequently asked questions
Must motion be at constant velocity for this average-velocity formula?
No. The average velocity must correctly describe the entire entered interval.
Is signed displacement the same as total distance?
No. Motion that reverses direction can have less displacement than total distance travelled.
Why must the averaging interval match the entered duration?
An average computed over a different interval does not describe the displacement during the requested interval.