The universal constant of gravitation G has the unit

According to Newton's law of universal gravitation, F = G(m₁m₂)/r². Rearranging for G: G = Fr²/(m₁m₂). The units are therefore (Newton × meter²)/(kilogram × kilogram) = N·m²/kg². The numerical value of G is approximately 6.674 × 10⁻¹¹ N·m²/kg². This is a fundamental physical constant that appears in gravitational calculations across the universe.