AWG 14 Wire

Diameter 0.0641″
Millimeters 1.628 mm
Cross-section 4,109 cmil
mm² 2.08

Nominal bare-conductor dimensions per ASTM B258. AWG is geometric: d = 0.005 × 92(36−n)/39 in with n = 14; area is derived from the diameter. Ampacity depends on insulation, bundling, and the electrical code in force — it is a property of the installation, not the gauge.

Neighboring gauges

AWG Diameter mm vs AWG 14
12 0.0808″ 2.052 +0.0167″
13 0.0720″ 1.829 +0.0079″
14 0.0641″ 1.628
15 0.0571″ 1.450 −0.0070″
16 0.0508″ 1.290 −0.0133″

Measuring sheet metal, not wire? Sheet uses a different gauge scale — see 14 gauge sheet (steel: 0.0747″).

Data provenance. ASTM B258, Standard Specification for Nominal Diameters of AWG Sizes (ASTM International). See all data sources.