Planet Mass:

g kg ton mg ug ng pg Carat[metric] Stone Ounce(Oz) Grain Pound Dram

Planet Radius:

m Km Mile Yard Foot

Escape Velocity:

m/s km/s m/min km/hr yard/s ft/s mile/hr

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Escape Velocity formula  V = √2GM/R
Where:
V: Escape Velocity, in m/s
M: Planet Mass, in Kg
R: Planet Radius, in m
G: Universal Gravitational Constant, is 6.6726 × 10^-11N.m²/kg²

Escape Velocity describes the minimum velocity for an object to escape the gravitational field of a planet.