Codewire: Electrician Calc
Voltage drop, conduit & more
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
A refreshed instrument-panel look, deeper and easier to read. Same fast, offline calculators.
The developer, Peter Hallander, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Peter Hallander
- Size
- 10.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Codewire Pro $9.99
- Copyright
- © 2026 Stackedboost
