Calculate cable sizes by selecting from the pre set options, fast and easy.
Cable Size Calculator calculates circuit cable sizes for PVC/PVC Flat twin and earth cables for all common domestic installation methods. For the super pro version which includes many more cables types check out our "Electrical Tools & Reference" app.
Great for designing new circuits or for checking existing circuits for compliances.
+ PVC/PVC Flat twin & earth cable sizes
+ Calculates Maximum Permitted Zs
+ Checks the Maximum Permitted Zs value with the calculated Zs value.
+ Calculates r1 + r2
+ Calculates Volt Drop
+ Checks the calculated Volt Drop against the Maximum permitted Volt Drop
+ Calculates the tabulated current (It)
Also Applies any relevant correction factors depending on your selections i.e. Thermal Insulation (Ci), BS 3036 Fuses (Cc), Grouping (Cg), Ambient Temperature (Ci) automatically.
A simple and easy to use electrical cable calculator app for the domestic installer or professional electrician, Chief, Foreman, electrical engineer, estimater, designer...
V.1.0 First release
V.1.1 Added BS 3036 Fuses
V.1.2 UI update
V.1.3 Added more screen sizes for tablets
V.1.4 UI update + support for all screen sizes.