INPUT
Range: -3 (4/0) to 40 AWG
COMMON AWG SIZES (USA)
CONVERSION RESULTS
AWG Size
14
Area (mm²)
2.08
Diameter (mm)
1.630
Resistance
8.286
Ω/km (copper)
Current Capacity (Approximate)
20 A
NEC 310.16: 75°C copper, 3 conductors in conduit
Conversion Steps
- 01Input: AWG 14
- 02Cross-sectional area: 2.08 mm²
- 03Diameter: 1.63 mm
- 04Resistance: 8.286 Ω/km (copper, 20°C)
- 05Maximum current: 20 A (chassis wiring, 30°C)
- 06Common use: #14 - Household 15A circuits
Formula
Area (mm²) = π × (diameter/2)²
QUICK REFERENCE
| AWG | mm² | Ø (mm) | Max A |
|---|---|---|---|
| 3/0 | 107.20 | 11.68 | 230 |
| 1/0 | 67.40 | 9.27 | 175 |
| 1 | 42.40 | 7.35 | 130 |
| 3 | 26.70 | 5.83 | 100 |
| 5 | 16.80 | 4.62 | 75 |
| 7 | 10.50 | 3.67 | 55 |
| 9 | 6.63 | 2.91 | 40 |
| 10 | 5.26 | 2.59 | 35 |
| 11 | 4.17 | 2.30 | 30 |
| 12 | 3.31 | 2.05 | 25 |
| 13 | 2.62 | 1.83 | 22 |
| 14 | 2.08 | 1.63 | 20 |
* Current ratings per NEC 310.16 (75°C copper, 3 conductors)