This tool helps electrical professionals quickly determine the correct cable sizes for electric circuits. It calculates voltage drop and supports various cable types, working offline for convenience on job sites.






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With an average user rating of 4.3★, the cable size calculators category is one of the App Store's strongest. Browse all 209+ apps we track, sorted so the most loved ones surface first.











This tool helps electrical professionals quickly determine the correct cable sizes for electric circuits. It calculates voltage drop and supports various cable types, working offline for convenience on job sites.





This tool assists electrical contractors by calculating cable selection and voltage drop for installations up to 25KW and 100A. It supports various cable types and includes reference methods, educational videos, and a guide to electrical test instruments.




This app provides a comprehensive suite of electrical calculations for professionals. It supports various international standards and offers detailed reports in PDF format. The tool covers wiring, power, motor, and electronic calculations, along with extensive conversion tables and resources.


Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.


This tool assists electricians, engineers, and contractors in determining the correct conduit size based on NEC guidelines. It calculates conduit fill percentages and jam probability, saving time compared to manual calculations.


This app helps determine the correct wire size or installation length for pump cables, adhering to NEC® guidelines. It supports various installation methods for electrical projects.


Calculate conduit fill and size based on NEC guidelines for copper and aluminum building wire. Determine the maximum number of conductors for a given raceway or the required raceway size for specific conductors.


Calculate the minimum required cable size for single and three-phase circuits based on BS 7671 standards. Input design criteria, installation methods, and environmental factors to determine appropriate cable dimensions. Save or print detailed results for your projects.


This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.


This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.


Easily convert wire sizes between American Wire Gauge (AWG) and metric/imperial units. Get diameter and cross-sectional area for your wiring needs.


This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.


This utility app helps estimate the remaining wire or cable footage on a reel. It comes preloaded with common cables and reels, and allows users to create custom favorites for quick access.


A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.






This utility calculates the appropriate wire gauge for DC power systems based on length, voltage, and current. It helps prevent voltage drops, overheating, and wasted energy by ensuring correct cable sizing for applications like solar panels and battery systems.