Acceleration Calculator -

Effortlessly determine acceleration, initial and final speed, or time required to reach a specified speed using our acceleration calculator. The tool supports various metrics, including meters per second, miles per hour, miles per second, kilometers per hour, kilometers per second, yards/feet per second, and knots. The results are provided in meters per second squared and standard gravity units (g).


This versatile acceleration calculator accommodates various vehicles and objects, including cars, buses, trains, bikes, motorcycles, planes, ships, spacecraft, projectiles, and more, thanks to its extensive support for different units. To compute the missing variable, you only need to input three out of the four parameters: acceleration, initial speed, final speed, and time (acceleration duration).

The results are consistently presented in the squared form of the input unit (e.g., km/h^2), meters per second squared (m/s^2), and standard gravity units (gn or simply g).

Additionally, this calculator is equally adept at calculating deceleration. By entering a reduced value for the final speed, it can determine, for instance, the deceleration needed to bring a vehicle to a complete stop within a specified duration or the braking distance for a vehicle decelerating at a given rate.