Designed to adhere to the IET Wiring Regulations BS 7671:2018



Calculate series or parallel resistor circuits into one or up to three groups.

Further convert those groups into a final series or parallel circuit.

Add either Amps, Volts or Watts to calculate the missing values.


Toggle the < ? > Fields to calculate the resistor size required to create a
volt drop to run specific size electronic components.

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E-Calcs - Calculator 4





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