MotionLab

Acceleration Calculator

a = (v₁ − v₀) / t, in metres per second squared.

The rate velocity changes

Acceleration measures how quickly speed changes over time — a car that goes from 0 to 27 m/s in 3 seconds has an acceleration of 9 m/s² for every second it speeds up by 9 m/s.

Positive and negative acceleration

A negative result means the object is slowing down (decelerating) rather than speeding up — the same formula covers braking as easily as it covers a launch.

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MotionLab

Acceleration Calculator

a = (v₁ − v₀) / t, in metres per second squared.

Initial velocity (m/s)

Final velocity (m/s)

Time (s)

Acceleration (m/s²)

a = (v₁ − v₀) / t

What you entered

Initial velocity (m/s): 0Final velocity (m/s): 27Time (s): 3

1
Change in velocity
27 − 0= 27
2
Divide by time
27 ÷ 3= 9

Result

Acceleration (m/s²): 9

Going from 0 m/s to 27 m/s over 3s gives an acceleration of 9 m/s².

The rate velocity changes

Acceleration measures how quickly speed changes over time — a car that goes from 0 to 27 m/s in 3 seconds has an acceleration of 9 m/s² for every second it speeds up by 9 m/s.

Positive and negative acceleration

A negative result means the object is slowing down (decelerating) rather than speeding up — the same formula covers braking as easily as it covers a launch.