What AWG to mm calculator does
This tool converts American Wire Gauge (AWG) numbers into metric diameters in millimeters and cross-sectional areas in square millimeters. It serves as a quick reference for anyone specifying or selecting electrical cable sizes, removing the need to consult printed conversion charts. The output includes both the conductor diameter and its area, which are essential for ensuring a wire can safely carry the intended current load.
How to use the RapidTables AWG to mm calculator
- 1
Select the AWG number from the dropdown or enter it manually into the input field
- 2
Click the Calculate button to generate the metric equivalents
- 3
View the diameter in millimeters and the cross-sectional area in square millimeters
- 4
Use the Reset button to clear the fields and enter a new gauge size
Best for
DIY electricians, home remodelers, and electronics hobbyists who need to translate AWG labels on wire spools into metric dimensions for compatibility with local cabling standards or equipment.
Limitations
- Rounded results may not match every specific cable manufacturer's tolerances
- Does not account for insulation thickness or stranded vs. solid conductor construction
- Primarily designed for standard AWG ranges; extreme or custom gauges may be excluded
AWG to mm calculator FAQ
- Can this tool convert metric millimeter sizes back to AWG?
- The page includes a separate AWG to mm² conversion calculator, but the primary function listed is AWG to millimeter diameter and area; reverse conversion would require a different input method not described in the excerpt.
- Does the calculator handle both solid and stranded wire sizes?
- The results refer to the diameter and area of the conducting wire without insulation, and the material does not specify whether solid or stranded constructions are differentiated in the output.
- Are the millimeter values exact or approximate?
- The notes indicate that diameter and area values are rounded to fit the nearest AWG value, so the results are approximations based on standard gauge tables.
- Is there a limit to the AWG numbers I can enter?
- The dropdown list includes gauges from 0000 down to 50, suggesting the tool is designed for that standard range; entering values outside this range may not produce a valid result.