Acceleration Calculator
Enter initial velocity, final velocity, and elapsed time in SI units to calculate acceleration.
Acceleration:
g force equivalent:
A QUICK WALKTHROUGH
How to use this tool
- Enter initial and final velocity in metres per second.
- Enter a positive elapsed time in seconds.
- Calculate acceleration and signed g force equivalent.
Formula
Acceleration is the change in velocity divided by elapsed time: a = (vᶠ − vⁱ) ÷ t. The g force equivalent is a ÷ 9.81, so both acceleration and g force retain their sign.
Input limits
Velocities must be finite values from −10,000 to 10,000 m/s. Elapsed time must be from 0.001 to 100,000 seconds.
GOOD TO KNOW
Common questions
Can acceleration be negative?
Yes. A negative result means the final velocity is lower than the initial velocity over the selected time.
Is this a unit converter?
No. This calculator uses velocities in m/s and time in seconds; it calculates acceleration from those inputs.