OHMIE Electric
Code-checked material takeoffs
About
This app provides code-checked material takeoffs for electricians and contractors, ensuring correct parts and sizes verified against the National Electrical Code. It simplifies calculations for ampacity, grounding, conduit fill, and voltage drop, offering detailed material lists with code citations.
What's New in OHMIE Electric
1.2
August 25, 2026
Permits and job notes now ride along with the job, and both show up in the report your customer gets. Any material line can carry the manufacturer, catalog number and supply house you actually buy from. OHMIE sizes the part, you name it, and your entry survives a re-size. Check the whole breaker schedule on one screen before it turns into a material list: every line as you'd order it, the device count, and how many panel spaces you have left. Switches are counted by location now, so two switches in a two-gang box is one box and one two-gang ring, not two of each. Bigger jobs are covered. Conductors run to 750 kcmil and up to four parallel sets, conduit to 4 inches. Past what OHMIE carries it tells you what it would take, instead of quietly handing back its own largest size. Also: plug-on neutral asked and printed on every breaker line that needs it, per-circuit labelling on multi-circuit lighting jobs, and a long list of sizing and code-citation fixes.
MoreSubscription plans
OHMIE Annual
Full access to OHMIE, billed once a year.
In-App Purchases
$499.99
OHMIE — Lifetime Access
Own OHMIE for good. One payment, nothing renews.
Developer apps
FAQ
What is OHMIE Electric?
OHMIE Electric is a code-checked material takeoff application designed for licensed electricians and electrical contractors. It verifies part sizes against the National Electrical Code (NEC) before installation, helping to prevent costly errors and rework.
How does OHMIE Electric calculate material requirements?
The app takes job specifics like load, distance, conductor material, wiring method, and location, then runs them against NEC sizing tables in real time. This includes ampacity, equipment grounding conductors, conduit fill, and voltage drop.
Does OHMIE Electric support different wiring methods?
Yes, OHMIE Electric supports every major wiring method, including NM-B, UF-B, MC, EMT, IMC, RMC, PVC Schedule 40/80, FMC, LFMC, and LFNC, along with their correct fittings and support spacing.
What pricing plans are available for OHMIE Electric?
OHMIE Electric offers monthly ($9.99/month) and annual ($79.99/year) subscription plans, both including a 30-day free trial. A one-time lifetime unlock option is also available. All plans provide full app access without feature limitations.
Is OHMIE Electric suitable for all US jurisdictions?
OHMIE Electric covers all 50 states plus D.C., with full amendment layers for 39 states. For other jurisdictions, it provides honest, primary-sourced answers based on the NEC.
Can I add custom materials to my takeoff in OHMIE Electric?
Yes, OHMIE Electric allows for editable, field-added materials. It maintains a full planned-vs-used audit trail for the completion record, ensuring accurate documentation.
What is the update frequency for OHMIE Electric?
OHMIE Electric was last updated on August 25, 2026, with version 1.2. The app is actively maintained, suggesting regular updates to reflect code changes and feature enhancements.
What devices is OHMIE Electric available on?
OHMIE Electric is available on iPhone and iPad, indicated by its supported devices. It is designed for mobile use by electrical professionals on the go.