playroom. 🚀 Space Zone

YOUR WEIGHT ON OTHER WORLDS

Your mass never changes across the cosmos — but the downward gravitational force pulling on you changes dramatically with each world's size and density.

Surface Gravity Ratios ($g$)

Surface gravity depends on two competing factors: the total mass of the celestial body ($M$) and its radius squared ($r^2$), according to Newton's universal law of gravitation:

g = G × (M / r²)

Notice how Saturn is 95 times more massive than Earth, yet its surface gravity is only 1.07g (almost identical to Earth)! This is because Saturn is a low-density gas giant with an enormous radius, placing its cloud deck far from its gravitational center.