15 AWG wire specifications: 1.4495 mm diameter, 1.6502 mm² area. Resistance, weight, and common uses.
| Diameter | 1.4495 mm · 0.057068" · 57.07 mils |
| Cross-sectional area | 1.6502 mm² · 3,257 circular mils |
| Resistance (copper, 20°C) | 10.447 Ω/km · 3.1842 Ω/1000ft |
| Resistance (aluminum, 20°C) | 16.0583 Ω/km · 4.8946 Ω/1000ft |
| Ampacity — copper 60°C | — A |
| Ampacity — copper 75°C | — A |
| Ampacity — copper 90°C | — A |
| Ampacity — aluminum 75°C | — A |
| Weight (copper) | 14.786 kg/km · 9.936 lbs/1000ft |
| Weight (aluminum) | 4.456 kg/km · 2.994 lbs/1000ft |
| Closest metric size | 1.7 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 |