# If mass of a planet is greater than the its G Will be greater?

G is a constant used in Newton’s universal law of gravitation, $F = - G \frac{{m}_{1.} {m}_{2}}{r} ^ 2$ as the name suggests, it is constant, it doesn't change.
There is no reason to suspect it would be any different on a different planet. It always has the value $6.67 \times {10}^{-} 11 N {m}^{2} k {g}^{-} 2$