-desired voltage drop in % or in other words this is the cable resistive loss. Every cable has its own resistance which is directly proportional to the cable length and inversely proportional to the cable diameter. This resistance is temperature dependant as well. Our calculator takes into account all the above-mentioned factors to calculate cable resistance so as to be received a voltage drop equaled to the desired one.

Always choose cable type that satisfied both conditions: calculated wire diameter in inches (or cable wire size in mm2) and rated maximum ampers for power transmission if cables are wired in a bundle or maximum amps for chassis wiring if each wire is routed separately and exposed directly to air as per table given below calculator area or manufacturers data.

Cable Size Calculator Excel Free Download