Enter an energy value and a charge to calculate voltage.
How to Use the Joules to Volts Conversion Calculator
Energy and charge are the two fields — the same relationship as Ohm's Law, applied to potential energy instead of instantaneous power.
This one's a different family from the Ohm's Law conversions elsewhere in this category — voltage here is defined directly as energy per unit charge, not derived from current and resistance.
V = J ÷ C100 joules moving 5 coulombs of charge works out to 20 volts. This Joules to Volts Calculator runs that conversion given any energy and charge pair.