The gravitational constant (also known as the universal gravitational constant, the Newtonian constant of gravity, or the Cavendish gravitational constant), denoted by the letter G, is an empirical physical constant that is defined in Sir Isaac Newton's law of universal gravitational effects. included in the calculation. In Gravity and Albert Einstein's General Theory of Relativity.
Each measurement has two parts. The first one is a number (n) and the next one is a unit (u). Q = no. For example, length of an object = 40 cm. A number expressing the magnitude of a physical quantity is inversely proportional to the chosen unit.