Cable Calc by Pro Certs Software Ltd is an excellent cable calculator application that provides you with everything you need to calculate cable sizes for various types of cables, installation methods, correction factors, and protective devices. This cable calculator is easy to use and can calculate cable sizes, R1+R2, voltage drop, and expected Zs in just two simple steps. It is perfect for electrical surveys, EICR reports, or designing new circuits.

One of the best features of the Cable Calc app is that it allows you to print, save, email, and share the cable calculation results PDF from the print function. The app also supports manufacturer-specific BS ENMax Zs) MCCB's & ACB's as well as RCD's in TT Earthing Systems. The app also has verification checks and helpful hints, which makes the app user-friendly, even for those who are not familiar with electrical calculations.