Free tools that actually do the math.

Fast, accurate calculators for trades and local-service owners — no signup, no email wall, and the numbers are right. Every technical tool is built to the real code or formula and shows its work.

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Trade & code calculators

Electrical Service Load Calculator

Size a single-dwelling electrical service to Canadian Electrical Code Rule 8-200(1). Enter your home details and get the calculated amps plus the recommended 100A / 200A / 400A service, with a line-by-line CEC breakdown.

Canada · CEC 8-200

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We are adding cost estimators and material calculators for the trades we work with. Every tool is free to use and free to embed. Want your marketing measured the same way we build these tools?

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