Acceleration Calculator
Calculate acceleration from change in velocity over time, or solve for final velocity or time, free and instant in your browser.
Enter Values
Minimum 0
How to use this calculator
- Enter the initial and final velocity and the time.
- Read the acceleration and g-force.
How it works
Acceleration = (final velocity − initial velocity) ÷ time.
Worked example
0 → 27 m/s in 9 s. = 3 m/s² (about 0.31 g).
Common mistakes
- Mixing km/h with m/s — convert speeds to m/s first.
- Forgetting deceleration is just negative acceleration.
Frequently asked questions
How is acceleration calculated?
Acceleration = change in velocity ÷ time taken (a = Δv ÷ t), measured in m/s².
What does 1 g of acceleration mean?
It equals Earth's gravity, about 9.81 m/s² — the rate a free-falling object speeds up near the surface.
What does the g-force mean?
It compares the acceleration to gravity (9.81 m/s²) — 1 g is the pull you feel standing still.
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Cite this tool
Zerdly. (2026). Acceleration Calculator. Retrieved from https://www.zerdly.com/tools/acceleration-calculator/
Tip: Enter any known values to calculate the remaining results.
Designed to run locally in your browser. Tool inputs are not intentionally stored by Zerdly unless stated otherwise.