Ohmmio
Professional electrician calculator and NEC reference
○ In Development iOS · Android $19.99one-time purchase — NEC code updates available for $7.99 per cycle
Your Electrical Code Companion
Ohmmio is a professional-grade electrician calculator paired with an intuitive NEC (National Electrical Code) reference. Get the calculations you need and understand the code behind them — without flipping through a physical codebook.
Key Features
- Electrical calculations: wire sizing, voltage drop, conduit fill, box fill
- NEC code reference with plain-language explanations
- Audit-compliant guidance for inspections
- Works offline — no internet required on the job site
- Cross-platform: iOS and Android
Honest Pricing
You buy Ohmmio once and it works — period. When a new NEC edition drops (every three years), you can grab the update for $7.99 if you want it. If you don’t, the app keeps working with the code edition you already have.