The acceleration due to gravity at Earth's surface is approximately 9.81 meters per second squared (m/s²).

This value is often rounded to 9.8 m/s² for simplicity.

It's important to note that this value can vary slightly depending on factors like:

* Altitude: Gravity weakens as you move further away from Earth's center.

* Latitude: The Earth is not perfectly spherical, so gravity is slightly stronger at the poles than at the equator.

* Local geological formations: Dense rock formations can slightly increase local gravity.