Acceleration Calculator
Calculate average acceleration from initial velocity, final velocity and elapsed time.
How to Use the Acceleration Calculator
Enter initial velocity, final velocity and elapsed time to calculate average acceleration.
Practical Example
If velocity increases from 5 m/s to 25 m/s in 4 seconds, average acceleration is 5 m/s².
Factors That Affect the Result
The result assumes average acceleration over the entered time. Changing acceleration, measurement error and inconsistent units can affect interpretation.
Frequently Asked Questions
What formula is used?
a = (v − u) ÷ t.
Can acceleration be negative?
Yes.
What is the SI unit?
m/s².
Average vs. Instantaneous Acceleration
Average acceleration is change in velocity divided by elapsed time. It can differ from instantaneous acceleration when motion changes continuously. Velocity includes direction, so a change in direction can produce acceleration even when speed remains constant.