Easily determine the correct wire gauge (AWG) for your 24V DC electrical system to prevent voltage drop and ensure safe, efficient operation. Our calculator helps you choose the optimal wire size based on current, length, and acceptable voltage drop, essential for solar, RV, and automotive applications.
Formula:
Formula for Wire Sizing:
Circular Mils (CM) = (2 * K * I * L) / Vd
- CM: Required wire cross-sectional area in Circular Mils.
- K: Material resistivity constant (10.4 for Copper, 17.0 for Aluminum at 75°C).
- I: Current in Amperes (A).
- L: One-way length of the wire in Feet (ft).
- Vd: Allowable Voltage Drop in Volts (V).