What you get
Calculate voltage loss in volts and percent along an electrical circuit.
How to use it
Enter only the requested values and check the unit shown beside each field. The main result gives the figure to use first. Details explain conversions, secondary quantities and rounding. Change any value to compare another situation without starting again.
Before using the result
Use the actual installation data and check every unit. Cable sizing, protection choices and safety-critical electrical work must still be checked against the applicable rules.