How to convert joules to volts
You can calculate volts from joules and coulombs, but you can't convert joules to volts since volt and joule units represent different quantities.
Joules to volts calculation formula
The voltage V in volts (V) is equal to the energy E in joules (J), divided by the charge Q in coulombs (C):
V(V) = E(J) / Q(C)
volt = joule / coulomb
V = J / C
What is the voltage supply of an electrical circuit with energy consumption of 60 joules and charge flow of 4 coulombs?
V = 60J / 4C = 15V