Extreme close-up of a wire stripper pulling black insulation off a stranded copper conductor

Tools · Drawings E-501 to E-504

Electrical calculators

Load, voltage drop, EV charging time and running cost. The formula and the assumptions are shown on each page, and nothing you type is sent anywhere: the arithmetic runs in your browser.

E-501 Home load calculation Estimate a single dwelling’s calculated load by the Canadian Electrical Code method, and whether 100 A or 200 A is enough.
E-502 Voltage drop Voltage drop and percentage for a run of copper or aluminum conductor, single- or three-phase, in metres.
E-503 EV charging time Hours to add range or fill a battery at a given charger size, and the circuit a continuous charging load needs.
E-504 Appliance running cost What an appliance, heater, block heater or charger costs to run per day, month and year at your price per kWh.