Gravity & escape velocity
Build a world and calculate its gravitational pull, your weight, and its escape speed.
Your experiment
How it works
A planet’s mass increases its pull, while a larger radius puts its surface farther from the center. Your mass stays the same on another world; your weight, a force measured in newtons, changes.
Read the field note ↗About this model
A spherical, non-rotating body without atmospheric drag. Radius means distance from the center to the reference surface. Gas giants do not have a solid surface to stand on.
Gravity & escape velocity: common questions
What is the difference between mass and weight?
Mass measures the amount of matter in kilograms. Weight is gravitational force, measured in newtons.
Does escape speed depend on spacecraft mass?
In this ideal model, no. It depends on the attracting world’s mass and the starting distance from its center.
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