x Solvers
Education
Ohm’s Law Solver
Solve voltage, current, or resistance using V = I × R.
Use the same equation in three directions
Choose the electrical quantity you want to find, then enter the other two values.
This is an educational numerical tool and does not replace electrical safety guidance.
How this resource works
Ohm’s law: voltage V = current I × resistance R. Rearranging gives I = V ÷ R and R = V ÷ I.