Electrical Calculators

Getting electrical calculations right isn't just about efficiency — it's about safety. Undersized wiring can overheat and cause fires, while excessive voltage drop leads to poor performance and wasted energy.

Our free electrical calculators help you select the right wire gauge and verify voltage drop for any circuit, keeping your installation safe and code-compliant.

Wire Size Calculator

Determine the correct wire gauge for your circuit based on amperage and distance.

Voltage Drop Calculator

Calculate voltage drop over a wire run to ensure safe, efficient wiring.