Using Newton's formula for gravitation to calculate ones weight on other planets.


F = G * m1 * m2
_________
d2
F =  gravitation force N
G =  gravitation constant 6,67E-11 Nm2 / kg2
m1 =  mass 1 (this could be your weight) kg
m2 =  mass 2 kg
d =  distance between center of m1 and m2 m
using the standard value of 9,80655m/s2 
for g this equivalents on earth ca.:
(use 1 kg for mass1 to see g here)
kg
V = Escape velocity Km/s
Km/h

tw-20020427/20131108