Wireman: Electrician Calc

Conduit bending, motor, dwelling-load & grounding calcs - every result cited to the NEC. Buy once, every code edition included. No subscription, no ads, fully offline.

Every electrical calculation and the NEC reference in one fast, offline app - built for the field, not the office.

Stop flipping through the code book or juggling five different apps. Size a conductor, check voltage drop, fill a conduit, or lay out a saddle bend in seconds - and every result shows the worked formula and the NEC section behind it, so you can defend the number to an inspector.

CALCULATORS

• Wire / conductor sizing with temperature & conductor-bundling derating
• Circuit sizing: load > breaker > wire > ground
• Voltage drop plus the smallest wire that stays under 3%
• Conduit fill: EMT, PVC, RMC
• Conduit bending: offset, 3-bend saddle, stub-up
• Box fill: 314.16
• Motor circuits: full-load amps, conductor, breaker, EGC
• Transformer sizing: kVA, FLA, overcurrent protection
• 3-phase power: amps, kVA, kW, HP
• Available fault current
• Dwelling load calculation: Article 220
• EV charger circuits
• Grounding & bonding - EGC and GEC
• Ohm's law / power wheel
• Unit conversions

NEC REFERENCE Search by article number (e.g. 250.122) or plain words (GFCI, box fill) and jump straight to the matching calculator. Ampacity, box fill, NEMA configs, conductor colors and more - at your fingertips.

WHY WIREMAN

• Every result is cited to the NEC and shows its work
• Buy once - every current and future NEC edition included
• No subscription. No ads. No account.
• Works 100% offline, anywhere on the job
• Fast, modern, glove-friendly design

FREE TO START The everyday calculators and the full code reference are free. Unlock Wireman Pro once for the advanced calculators - motor, transformer, fault current, dwelling load, EV charger, and grounding - with all NEC editions included and no recurring fees.

Made for inside wiremen, apprentices, journeymen, masters, estimators, inspectors, and maintenance techs.

Wireman is a reference tool, not a substitute for the adopted code. Always verify against your local NEC and amendments before performing work.