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Physics Acceleration: How Fast Velocity Changes

Acceleration measures the change in velocity, not velocity itself. This calculator divides that change by the time it took.

What is the Physics Acceleration Calculator?

Enter starting velocity, final velocity, and time in seconds. Acceleration is the velocity change divided by time. All physics tools here use standard textbook formulas, labelled as such.

How to use it

  1. Enter the values in the labelled units.
  2. Click Calculate Acceleration.
  3. Read the result and its formula.

Worked example

Going from 0 to 20 m/s in 5 seconds is an acceleration of 4 m/s^2.

What acceleration is 0 to 20 m/s in 5 seconds?

4 metres per second squared, from 20 divided by 5.

Frequently asked questions

What units should I use?

Use the units on the labels (kg, m, s, N, J, W) so the formula's result comes out in standard units.

Is this exact?

The formula is standard textbook physics; real measurements carry their own errors, but the arithmetic is exact.

Try the Physics Acceleration Calculator free · All guides