**Standard gravity** is a unit of measurement of acceleration. The definition for standard gravity is the following:

The standard gravity is equal to 9.806 65 m/s^{2}.

Standard gravity or standard acceleration due to free fall is the nominal acceleration of body in a vacuum near the surface of the earth, equal to 9.80665 m/s^{2}.

The symbol for standard gravity is

**g**Standard gravity is compatible with the

metre per second squared base unit.