NEC Load Calculator

Name: NEC Load Calculator
Rating: 5 (2 reviews)
Author: V PUGAZHENTHI

Residential, Commercial, Panel

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

2 Ratings
Age Rating

4+
Years
Category

Utilities
Developer

V PUGAZHENTHI
Language

EN
English
Size

11.6
MB

Residential, Commercial, Motor & Panel Schedule calculations — NEC 2023 compliant, with built-in checks that catch overloaded circuits before you build them. NEC Load Calculator performs NEC 2023 load calculations for residential, commercial, motor, and branch circuit work — built for licensed electricians and contractors, not students. CALCULATION MODULES Residential Dwelling unit service sizing per NEC 220.40–220.55 and 220.82. Standard and optional methods. General lighting, small appliance and laundry circuits, fixed appliances, dryer, cooking equipment, HVAC, and service sizing with 230.79(C) minimums. Commercial Feeder and service load calculations per NEC 220.12, 220.44, 220.60, 430.24. Lighting, receptacles, motors, HVAC units, sign circuits, and demand factors. Branch Circuit Conductor and OCPD sizing per NEC 210.19, 310.12, 310.15(B)(1)(a). Continuous load handling, conduit fill derating, ambient temperature correction. Motor Conductor, overload, and OCPD sizing per NEC 430.22, 430.32, 430.52. Full motor table lookups by horsepower, voltage, and phase. Panel Schedule Circuit-by-circuit panel editor with phase balance, loading percentage, and imbalance calculations per NEC 220.40 and 220.87. RESULTS SHOW THE CALCULATION Every result includes the NEC article reference, the demand factor table used, and the step-by-step math — not just a final number. Built to be checked against the code book. PANEL LAYOUT Generate a panel layout directly from a load calculation: circuit numbers, breaker sizes, two-pole spans, and spare spaces, arranged the way a real panelboard is wired. Hand off into the full Panel Schedule editor to adjust circuit labels, phase assignment, or breaker sizes. PDF EXPORT Export any result as a PDF report for permit submission, job documentation, or client records.

Ratings & Reviews

5.0

out of 5

2 Ratings

Must have app for every electrician
Aug 12
Civil proj mgr
As an electrician, this is a go to app for all my daily wiring needs . Makes my job so easy with clear instructions

Developer Response
Happy to hear 😎
Must have app for every electrician
Aug 12
Civil proj mgr

As an electrician, this is a go to app for all my daily wiring needs . Makes my job so easy with clear instructions
Developer Response Aug 14
Happy to hear 😎
Solid
Jul 30
Gavin Burn
Overall good app. Simple, easy to use, cant really ask for more. App dev is good at listening to feedback for any corrections or advice.

Developer Response
Happy to hear 😎
Solid
Jul 30
Gavin Burn

Overall good app. Simple, easy to use, cant really ask for more. App dev is good at listening to feedback for any corrections or advice.
Developer Response Aug 5
Happy to hear 😎

• Improved Panel Schedule validation — catches overloaded circuits before they're added, with clear inline warnings • Motor calculator now correctly limits horsepower options for single-phase motors per NEC 430.248

Version 1.1 Aug 4

Data Not Collected

The developer does not collect any data from this app.

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Accessibility

Information

Seller: V PUGAZHENTHI
Size: 11.6 MB
Category: Utilities
Compatibility: Requires iOS 18.6 or later.

iPhone
Requires iOS 18.6 or later.

iPad
Requires iPadOS 18.6 or later.

Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 2.6 or later.
Languages: English
Age Rating: 4+

4+

Learn More
In-App Purchases: Yes

NEC LOAD PRO $7.99

Learn More