Wire Gauge Calculator

Select gauge #:  
Or enter gauge #: AWG
Select wire type:  
Resistivity: Ω·m
 
Diameter in inches: in
Diameter in millimeters: mm
Cross sectional area in kilo circular mils: kcmil
Cross sectional area in square inches: in2
Cross sectional area in square millimeters: mm2
Resistance per 1000 feet*: Ω/kft
Resistance per 1000 meters*: Ω/km

Wire Size Calculator

Wire Gauge Calculator mainly calculates diameter of a wire, which in turn helps in measurement of cross sectional area and resistance of wire. American Wire Gauge is the wire gauge standard used in North America.

Formula for Calculating Wire Diameter in mm:

Wire Diameter (mm) = .127 × 92(36 – AWG) ÷ 39

Formula for Calculating Cross Sectional Area in mm2:

Cross Sectional Area (mm2) = (π ÷ 4) × Diameter2

Diameter, cross-sectional area, and resistance values for different American wire gauge (AWG) values.