What is the numerical value of the Gravitational Constant?

The Gravitational Constant, often denoted by the symbol G, is critical in the field of physics and astronomy as it helps quantify the strength of the gravitational force between two masses. Its numerical value is approximately 6.6742 x 10^(-11) m^(3)kg^(-1)s^(2). This unit expresses the gravitational force between two 1-kilogram masses that are 1 meter apart. The precision of this constant is essential for calculations involving gravitational interactions, such as the orbits of planets and the behavior of objects in gravitational fields.

Other options presented involve different physical quantities: the value representing acceleration due to gravity at Earth's surface, which is approximately 9.81 m/s^2; the mathematical constant pi, commonly approximated as 3.14159; and the elementary charge in joules, which is a completely different concept related to electricity. Each of these represents distinct phenomena separate from the universal gravitational constant.