The acceleration of a rocket at takeoff can vary significantly depending on the specific rocket, its payload, and the propellant being used. However, as a general reference, the acceleration of a rocket at takeoff can be several times greater than the acceleration due to gravity (approximately 9.8 meters per second squared or 32 feet per second squared).

During the initial phase of takeoff, rockets typically experience high acceleration as they overcome the force of gravity and achieve the necessary speed to lift off from the ground. Some rockets, particularly those designed for high-performance missions or space exploration, can achieve accelerations of several tens of meters per second squared, or even hundreds of meters per second squared, during the initial stages of flight.

As the rocket continues to climb and its mass decreases due to the consumption of propellant, the acceleration may gradually reduce, but it can still remain significantly higher than the acceleration due to gravity for a substantial portion of the ascent phase.

It's important to note that the acceleration experienced by rockets at takeoff is not constant and can vary depending on factors such as changing propellant mass, thrust adjustments, and the aerodynamic forces acting on the rocket as it moves through the Earth's atmosphere.