The acceleration of a free-falling object due to gravity on Earth is approximately 9.81 meters per second squared (m/s²). This value is often rounded to 9.8 m/s² or 10 m/s² for simplicity.

Important Note: This value is an average. The actual acceleration due to gravity can vary slightly depending on factors such as:

* Altitude: Gravity decreases slightly as you move further away from the Earth's surface.

* Latitude: Gravity is slightly stronger at the poles and weaker at the equator.

* Local geological formations: Densities of rock formations can slightly influence gravity.