Charge, in Physics, is the susceptibility of a body to one of the fundamental forces i.e. Color charge ( in quantum chromodynamics) a property of quarks and gluons, related to their strong interactions; Electric charge ( in electromagnetism), a property which determines the electromagnetic interaction of subatomic particles; Magnetic charge, a property of theoretical magnetic monopoles
Charges are associated with conserved quantum numbers
vCalc's Charge folder contains equations that relate to color, electric, and magnetic charge.