Physics calculator
Acceleration Calculator
Calculate acceleration from initial velocity, final velocity, and elapsed time.
Time must be greater than zero.
Acceleration
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Motion—
Formulaa = (v − u) ÷ t
How it works
Acceleration is the rate at which velocity changes. A negative result means velocity changed in the negative direction; in a simple slowing-down case it represents deceleration.
a = (v − u) ÷ t
Worked example
From 0 to 20 m/s in 4 seconds gives 5 m/s².
How to use this tool
- Enter the known values and choose units where available.
- Check the primary result and supporting details.
- Clear or replace an input to calculate another case.
Frequently asked questions
What happens with invalid or incomplete inputs?
The result remains blank until the required inputs form a finite, meaningful calculation. Zero denominators and physically impossible negative quantities are not calculated.
Can I use decimal values?
Yes. The tool accepts decimals and keeps full precision for the calculation while rounding the displayed result for readability.