Calculate the correct wire size based on load current, cable length, and voltage drop limits.
Required Cable Cross-Section: mm²
Cable size calculation helps determine the right thickness of wire (in mm²) needed for a specific electrical load. It’s important for safety, efficiency, and avoiding voltage drops across long cable runs.
Choosing the wrong cable size can lead to overheating, power loss, or even fire hazards. This tool helps you pick the correct size based on load current, cable length, voltage, and material type.
Copper cables offer better conductivity and are more compact, while aluminum cables are lighter and cost-effective. Select the material based on your needs — this calculator adjusts the result accordingly.
Single-phase systems are commonly used in homes, while three-phase systems are more common in industrial setups. This tool adapts the formula depending on the phase you choose to ensure accurate results.
Enter your load current, cable length, voltage, allowed voltage drop, and choose the cable material and phase type. The calculator will then estimate the minimum cross-sectional area (in mm²) required for safe and efficient power delivery.