Velocity [Distance, Time]

vCalc Reviewed
Equation / Last modified by KurtHeckman on 2018/04/02 18:46
vCalc.Velocity [Distance, Time]

The Average Velocity calculator computes the velocity (V) based on the change in position (Δx) and the change in time (Δt).

INSTRUCTIONS:  Choose your units for length (e.g. feet or meters) and time (e.g. minutes or days) and enter the following:

  • (Δx)  Change in distance
  • (Δt)   Change in time

Velocity(V): The calculator computes the velocity (V) in meters per second (m/s).  However this can be automatically converted to numerous other velocity units (e.g. mph) via the pull-down menu.

Related Calculators:

The Math

  The formula for average velocity is:

     v = Δx / Δt


In vector notation this can also be represented as the difference between two position vectors separated in time:

     `|v_"Avg"|`  = `(|Deltavecr|)/(Deltat) = |vecr_2 - vecr_1| / (t_2 - t_1)`


  • Young, Hugh and Freeman, Roger.  University Physics With Modern Physics.  Addison-Wesley, 2008. 12th Edition, (ISBN-13: 978-0321500625 ISBN-10: 0321500628 ) Pg 72, eq 3,2
  • Light and Matter(Dr. Benjamin Crowell) Chapter 2.3 Graphs of motion; velocity