What It Does
- Voltage drop, conduit fill, box fill, wire size, ampacity, grounding, breaker sizing
- Transformer, motor circuit, panel schedule, and material takeoff helpers
- Trust summaries, candidate comparisons, saved jobs, and US Letter PDF reports
Electrician Field Calculator
NEC-based field calculator for US electricians.
Fast field math, explainable results, local-only storage, and one-time Pro unlock.
Available on iPhone. Free to download with a $19.99 one-time Pro unlock.
Product Positioning
- Field-first workflow
- Explainable steps and assumptions
- Offline after install
- No subscription
Unlock
One-time Pro unlock
Free mode
- 3 runs per calculator
- 15 total free runs across the app
- Core workflow preview before paying
Pro mode
- $19.99 one-time unlock
- All 13 calculators unlocked
- Saved jobs, history, and US Letter PDF export
Screenshots
Real implemented UI
FAQ
Short answers
Does the app work offline?
Yes. Launch calculations, history, saved jobs, and PDF export are designed for offline use after install.
Does it replace code review or inspection approval?
No. It is a field calculation aid and must be verified against local code, project specs, manufacturer instructions, and AHJ requirements.
How does Pro work?
Pro is a one-time in-app unlock. Restore Purchase is available inside the app.
Where can I download it?
Privacy Policy
Local-first by default
Electrician Field Calculator is local-first. Calculation history, saved jobs, and trial counters stay on your device unless you choose to share information with support.
The app does not require an account, does not use analytics SDKs, does not use ad SDKs, and does not track you across apps or websites.
Disclaimer
Field aid only
This app provides field calculation aids based on selected inputs and structured reference data.
Verify results against local code, project specifications, manufacturer instructions, and AHJ requirements.
The app does not provide engineering approval, permit approval, legal advice, or a compliance guarantee.