Codewire vs Electrical Calculator

Codewire is the fast, offline calculator set built for electricians and apprentices. No ads, no signup, no subscription. Every calculator runs on your phone, even with no signal. WHAT'S INSIDE - Voltage Drop. Single- or three-phase, copper or aluminum, with drop %, voltage at the load, and the smallest wire that holds your target. - Wire Ampacity. Adjusted for ambient heat and bundled conductors. - Conduit Fill. EMT, rigid, and PVC, with the 53 / 31 / 40% limits applied. - Conduit Bending. Offset, rolling offset, three- and four-bend saddle, 90 degree stub, and back-to-back, with per-size take-up. - Box Fill. Required volume from conductors, devices, clamps, and grounds. - Ohm's Law. Solve any two of V, I, R, and P. - Three-Phase Power and kVA to Amps. - Motor Full-Load Current by horsepower. - Unit Converter. AWG to mm2, kW to HP, F to C, ft to m, and more. THE BEND ANGLE LEVEL Turn your phone into a digital angle finder. Lay it on the conduit and read the bend angle live, hands-free, with a set-zero reference. Most apps charge for this. Codewire includes it free. SHOWS ITS WORK Every result has a tap-to-reveal with the formula and method behind it, so apprentices learn the why, not just the number. BUILT RIGHT - Works 100% offline. - No ads, ever. - No account, no tracking. Saved calculations stay on your device. - Clean, fast input designed for the field. FREE, NO ACCOUNT NEEDED - Voltage drop, wire ampacity, Ohm’s law, and conduit fill. CODEWIRE PRO (one-time in-app purchase) A single purchase unlocks the advanced tools: three-phase power, kVA to amps, motor FLC, conduit bending, box fill, the bend-angle level, saved calculations, and the full NEC reference tables. No subscription. Codewire is a reference tool. Always verify results against the code edition adopted by your jurisdiction and your AHJ. It is not a substitute for a licensed electrician.

Electrical Calculator is a fast, offline toolkit for electricians, students and DIY pros - with no subscription and no ads. The core calculators are free forever. Unlock Pro once (no subscription, ever) for the full professional set. FREE - Ohm's Law: enter any two of volts, amps, ohms, watts - Energy cost: power, hours and rate to kWh and cost - Series and parallel resistance PRO (one-time) - Voltage drop: wire, load and length to drop, percent and end voltage - Wire size: smallest AWG for load and voltage drop - Ampacity: AWG to amps (NEC 310.16, 75C) with breaker limits - Conduit fill: EMT and THHN to percent fill - Box fill: conductors and devices to required volume (NEC 314.16) - Motor FLA: HP and voltage to full-load amps, conductor and breaker - Three-phase power and current, transformer kVA - Power factor correction, conduit bending, wire resistance, amps to kW/HP MORE - Works fully offline, no account, no tracking - Light and dark themes, English and Russian - Paperless tape: save and share your results Estimates are based on the NEC. Always verify against your local code and the authority having jurisdiction. This app is a tool, not a substitute for a licensed electrician.