13 AWG wire specifications: 1.8278 mm diameter, 2.624 mm² area. Resistance, weight, and common uses.
| Diameter | 1.8278 mm · 0.071962" · 71.96 mils |
| Cross-sectional area | 2.624 mm² · 5,178 circular mils |
| Resistance (copper, 20°C) | 6.5702 Ω/km · 2.0026 Ω/1000ft |
| Resistance (aluminum, 20°C) | 10.0992 Ω/km · 3.0782 Ω/1000ft |
| Ampacity — copper 60°C | — A |
| Ampacity — copper 75°C | — A |
| Ampacity — copper 90°C | — A |
| Ampacity — aluminum 75°C | — A |
| Weight (copper) | 23.511 kg/km · 15.799 lbs/1000ft |
| Weight (aluminum) | 7.085 kg/km · 4.761 lbs/1000ft |
| Closest metric size | 2.6 mm² |
| Skin depth at 60 Hz | 8.531 mm |
| Type | Temperature | Description |
|---|---|---|
| THHN/THWN-2 | 90°C dry / 75°C wet | Building wire |
| NM-B (Romex) | 90°C | Residential cable |
| MTW | 60/90°C | Machine tool wire |
| TFFN | 90°C | Fixture wire |