Wire Size Calculator
Determine the appropriate wire gauge based on current, voltage, distance, and maximum allowable voltage drop.
Circuit Parameters
Enter your circuit specifications
Results
Recommended wire gauge and performance metrics
Enter circuit parameters and click "Calculate Wire Size" to see results
Wire Gauge Reference
| Gauge | Diameter (mm) | Area (mm²) | Resistance (Ω/1000ft) | Max Current (A) |
|---|---|---|---|---|
| 0000 | 11.684 | 107.22 | 0.049 | 195 |
| 000 | 10.404 | 85.01 | 0.062 | 165 |
| 00 | 9.266 | 67.43 | 0.078 | 145 |
| 0 | 8.252 | 53.49 | 0.098 | 125 |
| 1 | 7.348 | 42.41 | 0.124 | 110 |
| 2 | 6.544 | 33.63 | 0.156 | 95 |
| 3 | 5.827 | 26.67 | 0.197 | 85 |
| 4 | 5.189 | 21.15 | 0.248 | 70 |
| 5 | 4.621 | 16.77 | 0.313 | 60 |
| 6 | 4.115 | 13.30 | 0.395 | 55 |
| 7 | 3.665 | 10.55 | 0.498 | 50 |
| 8 | 3.264 | 8.37 | 0.628 | 40 |
| 10 | 2.588 | 5.26 | 0.999 | 30 |
| 12 | 2.053 | 3.31 | 1.588 | 25 |
| 14 | 1.628 | 2.08 | 2.525 | 20 |