About ElectraKit
Professional-grade electrical engineering calculators — free, fast, and built for the field.
Our Mission
ElectraKit was built to solve a simple problem: electrical engineers and electricians need reliable, standards-compliant calculation tools that work instantly — on any device, without expensive software licenses or clunky spreadsheets.
We provide 28 calculators covering everything from voltage drop and wire sizing to arc flash analysis and motor starting calculations. Every tool references NEC (NFPA 70) and IEC 60364 standards to ensure code compliance.
What We Offer
28 Calculators
Voltage drop, wire sizing, conduit fill, breaker sizing, arc flash, harmonics, UPS sizing, solar, and more.
Standards Compliant
All calculations reference NEC (NFPA 70) and IEC 60364 code tables for professional-grade accuracy.
System Generator
Build complete Load → Protection → Cable chains with auto-sizing and compliance checking.
Free & Accessible
No signup required for core tools. Works on any device — desktop, tablet, or phone on the job site.
Standards & Methodology
ElectraKit calculations are built by licensed electrical engineers and reference industry standards including NEC (NFPA 70), IEC 60364, IEEE 1584, and IEEE 141. Our data tables are sourced directly from published code documents.
NEC (NFPA 70)
US wiring, conductor sizing, overcurrent protection, grounding
IEC 60364
International low-voltage installation requirements
IEEE 1584
Arc-flash hazard calculation methodology
IEEE 141 (Red Book)
Industrial power distribution and fault analysis
Disclaimer: ElectraKit is a professional reference tool. All calculations should be verified by a licensed professional engineer. Results are not a substitute for professional engineering judgment.
Ready to calculate?
Start using our 28 free calculators — no signup required.