Acceleration Calculator
Calculate acceleration from initial velocity, final velocity, and time using a = (v − u) / t.
Acceleration from Change in Velocity Mathematics
Acceleration calculator computes acceleration in m/s² from initial velocity, final velocity, and elapsed time, using a = (v − u) / t.
Acceleration is the rate of change of velocity over time — the difference between final and initial velocity, divided by how long that change took. A positive result means speeding up; a negative result means slowing down (deceleration).
- 1Enter the initial velocity, final velocity, and the time elapsed between them.
- 2View the resulting acceleration in m/s², plus the equivalent in multiples of Earth's gravity (g).
A car goes from a standstill (0 m/s) to 100 km/h (27.78 m/s) in 8.5 seconds.
Frequently Asked Questions (FAQ)
a = (v − u) / t, where v is final velocity, u is initial velocity, and t is the time elapsed — the change in velocity divided by the time it took.
Negative acceleration (sometimes called deceleration) means velocity is decreasing in the positive direction — the object is slowing down, assuming it started with a positive velocity.
Divide the acceleration in m/s² by 9.81 (Earth's standard gravity) — 1g equals 9.81 m/s², a common reference point for comparing accelerations like rocket launches or roller coasters.
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