Originally Posted by **JDDuncan** Anyone know how to find the gravity of a planet without using the gravitational constant? |

By "gravity" I presume you are referring to "acceleration due to gravity?"

Nope. I suppose there many sophisticated method you could employ but all of them are based on Newton's theory of gravitation and all would eventually depend on G.

The simplest equation would be: $\displaystyle g = \dfrac{GM}{r^2}$.

Think of it this way: If G were bigger we'd expect that the force on an object would be larger than it is now. So g would be larger as well. So there has to be a connection between the two.

-Dan