Southwire® Voltage Drop Calc
Southwire Company
Calculate and wire size
Calculate for a specific conductor run or determine wire size based on and current carrying capacity. Limits wire size to and NEC ampacity. Supports AWG and KCMIL sizes only.
Apps Like Electrical Layout Designer for iPhone and iPad
Electrical Layout Designer screenshots
Ranked alternatives
Showing 1–20 of 1,000 ranked alternatives.
Electrical Code-A-Day
PawEng, LLC
Answer daily questions and track your progress
Test knowledge of codes with daily quiz questions. Answer individual questions or complete as many as possible in one session. Includes 366 basic electrician-written questions for apprentices, journeymen, and masters.
Electric Toolkit - Calculator
Cyberprodigy LLC
Wire diagrams, pinouts, calculate electricity
Access electrical wiring diagrams for switches, fans, and outlets. Calculate grounding conductor sizes. View diagrams for 3-way switches, 4-way switching, GFCI, and more. Includes NEC 2014 to NEC 2023 standards.
SLD Sizer for Engineering
Kevin Phillips
Verify wire and conduit sizes based
Single Line Diagram helps electrical professionals verify wire and conduit sizes based on load selections. It uses NEC standards to provide minimum requirements. Users can check sizing for designs or installations and validate against code.
ResDemand
John Stacy
Calculate service demand loads accurately
Calculate service demand loads compliant with NEC 220.42–220.82. Use Standard or Optional methods. Add dryers, ranges, fixed appliances, HVAC, and motors. Automatically determine largest heat or cool load.
ConduitFill 3.0
Arismendi Hernandez
Select wires, get conduit size
Calculate conduit trade size based on wire sizes and NEC 2023 standards. Input up to five wire sizes to determine minimum required conduit size. Verify code compliance for electrical installations.
Electrical Toolkit by HCP
Codefied Inc.
Calculate conduit bends and offsets
Calculate conduit bends with offset and 90-degree tools. Determine stub-ups, kicks, and compound angles. Create three and four-point saddles for obstacle navigation. Access NEC-compliant calculations and field-tested utilities for work.
Ugly's Electrical References
Informed Publishing
Access code tables and track updates
Access code updates for 2023 NEC and NEMA standards. View table changes, formulas, and conduit bending guides with video tutorials. Calculate ampacity and conduit fill. Include transformer data and wiring configurations.
Kopperfield
Kopperfield, Inc.
Design projects with load calcs and diagrams
Provides load calculations, line diagrams, and panel schedules for electrical projects. Users input property details to generate updated calculations.
Electrical Calculator
V PUGAZHENTHI
Calculate values instantly
Provides tools for and electronics calculations. Users can compute resistance, voltage, current, and power. Includes resistor color code conversion and voltage drop calculations aligned with NEC/IEEE standards. Supports USCS and SI units.
Pump Cable Calculator
Southwire Company
Calculate wire size and install length
Calculates required wire size or install length for installations based on NEC® guidelines. Input system parameters to determine appropriate specifications. Provides detailed installation recommendations.
SLD | Electrical diagrams
Angel Martinez
Create with drag-and-drop symbols
Create one-line using standardized symbols. Select and drag symbols to arrange . Includes IEC and ANSI symbols for engineering. Add circuit breakers, switches, fuses, and other components. Save and export .
A NEC® Quick Reference
Alan Cave
Access code sections and requirements
Access NEC code sections for electrical installations. Search by topic or keyword. View diagrams and tables. Save and annotate code excerpts. Share references via email or messaging.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.