14 AWG to mm² – Wire Size & Diameter
14 AWG = 2.081 mm²
14 AWG solid wire has a cross-section of 2.081 mm² and a diameter of 1.628 mm (0.0641 in).
Step by step
- Diameter: d = 0.127 × 92^((36 − 14)/39) = 1.6277 mm.
- Area: π/4 × d² = 2.0809 mm².
14 AWG copper is used for 15 A lighting and outlet circuits in homes.
Details
- Area
- 2.081 mm²
- Diameter
- 1.628 mm (0.0641 in)
- Area in kcmil
- 4.11
- Nearest metric size
- 2.5 mm²
- Copper resistance
- 8.285 Ω/km
How it works
The American Wire Gauge system is logarithmic: smaller numbers mean thicker wire, every 6 gauges halve the diameter and every 3 gauges roughly halve the area. Metric wire is specified directly by cross-sectional area in mm², so the sizes never line up exactly. When substituting, choose a conductor with at least the same area, and always follow local electrical codes.
Nearby values
Related conversions
Frequently asked questions
What is 14 AWG in mm²?
2.081 mm².
What is the diameter of 14 AWG wire?
1.628 mm (solid conductor).
What metric wire replaces 14 AWG?
Use the next metric size up with at least 2.08 mm².
Is stranded wire the same size?
Stranded wire of the same gauge has the same copper area but a slightly larger overall diameter.