Observed arrival · 2026-10-17
WirePhase’s NEC/CEC Electrical Calculators
A set of 16 free calculators for electrical sizing, power, motors, transformers, solar, and EV circuits.
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- Electricians, contractors, engineers, and trade students
- Worth noticing
- The EV tool says it does not establish service capacity; the solar calculator calls for manufacturer checks on controller compatibility.
Field notes
The listed tools cover both routine calculations, such as voltage drop and conduit fill, and equipment sizing for motors, transformers, generators, and EV chargers. The motor-current description names NEC Tables 430.248 and 430.250; the EV calculator cautions that its circuit sizing does not determine service capacity.
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