How to Calculate Velocity

Velocity is displacement divided by time — a vector quantity with both magnitude and direction. Speed uses distance and is scalar.

Step-by-step

1. Determine initial and final position (include direction for 1D problems).
2. Calculate displacement: final position − initial position (signed).
3. Measure elapsed time for the motion.
4. Divide displacement by time: v = Δx / Δt.
5. Include direction in the answer (e.g., 12.5 m/s north).
6. Compare with our Velocity Calculator and see our velocity vs speed guide.

Open the Velocity Calculator to apply these steps with your own numbers instantly.

Frequently asked questions