The SI unit for acceleration is meters per second squared (m/s²).

Acceleration measures the rate of change of velocity over time, derived from velocity in meters per second (m/s) divided by time in seconds (s), yielding m/s². This unit applies in the International System of Units (SI) for linear acceleration.

Other Units

• In the CGS system, acceleration uses centimeters per second squared (cm/s²).

• The gal (Gal), common in geophysics, equals 1 cm/s² or 0.01 m/s².

• Angular acceleration uses radians per second squared (rad/s²).