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Electrical

Electrical calculators for conduit fill, wire sizing, voltage drop, box fill, and residential load calculations

Calculators & Instant Answers

Interactive tools and pre-calculated results for common scenarios

Calculate maximum wire fill for conduits according to NEC Chapter 9 requirements

Determine proper wire gauge based on ampacity, length, and temperature rating per NEC Article 310

Calculate voltage drop in electrical circuits to ensure compliance with NEC recommendations

Calculate maximum number of conductors allowed in junction boxes per NEC Article 314.16

Calculate total electrical load for residential services using NEC Article 220 methods

Calculate bend measurements for conduit installations including offsets, kicks, and saddles

Look up wire ampacity ratings, temperature correction factors, and conductor adjustment factors from NEC Table 310.16.