Showing 1–20 of 1,000 ranked alternatives.
Calculated Industries, Inc.
Calculate and document electrical work safely
Perform electrical calculations for contractors, designers, and electricians. Calculate load, voltage drop, conduit fill, and panel sizing. Verify compliance with NEC® codes from 1996 to 2023. Store and retrieve past calculations.
Cyberprodigy LLC
Calculate loads and circuits
Calculate loads, voltage drops, and conductor sizes according to NEC codes. Verify compliance for residential and commercial projects. Access code references for 2002–2023 editions. Perform wire sizing, panel scheduling, and circuit calculations.
SAM SHEPPARD
Calculate voltage, current, and resistance
Calculate electrical values using Ohm’s Law and related formulas. Input voltage, current, or resistance to determine missing variables. Access circuit diagrams and safety guidelines. Convert units between volts, amps, and ohms.
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 .
Snappy Appz Inc.
Calculate formulas and code results
Calculate values using formulas and code-compliant results. Determine wire, conduit, fuse, and ground sizes based on Canadian Electric Code. Track load calculations, voltage drops, and system efficiency.
Snappy Appz Inc.
Calculate formulas and code results
Calculate loads, determine wire and conduit sizes, and find fusing and overload requirements. Input voltage, current, and load values. Generate code-compliant results based on the Canadian Electric Code.
PawEng, LLC
Access electrical codes and standards
Access electrical codes and standards for residential, commercial, and industrial applications. Search for wiring diagrams, safety protocols, and equipment specifications. View detailed explanations of electrical systems and components.
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.
Angel Martinez
Calculate cable sizes and circuit dimensions
Calculate electrical circuits with tools for cable sizing, including phase, neutral, and protective conductors. Use criteria based on current capacity, voltage drop, and overcurrent protection.
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.
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.
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.
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