These calculators can be used to generate data using charge, radius and force.

Calculate the force given two chargees and a radius.

F = kQq/r2

Calculate the first charge given the second charge, force and radius.

M = Fr2/Gm

Calculate the second charge given the first charge, force and radius.

q = Fr2/kQ

Calculate the radius given the chargees and force.

r = √[kQq/F]