American Wire Gauge (AWG) can be counter-intuitive, with higher numbers representing thinner wires. Our AWG to Metric Converter simplifies electrical planning by providing instant mappings for diameter (mm), cross-sectional area (mm²), and even estimates for DC resistance and maximum ampacity (current capacity). It's an essential utility for electricians, hobbyist makers, and electrical engineers working with international wire standards.
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AWG to Metric Converter
Convert American Wire Gauge (AWG) to diameter in millimeters and cross-sectional area.
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Wire Specification Calculator
AWG is used primarily in North America for the diameters of round, solid, nonferrous, electrically conducting wire.
Diameter (mm)2.0525
Area (mm²)3.3088
Resistance (Ω/km) @ 20°C0.0052
The AWG System
The AWG system is logarithmic. A decrease of 3 AWG numbers effectively doubles the cross-sectional area and halves the resistance of the wire.
Electrical Safety
Always ensure the wire gauge you select can handle the current (amperage) required for your application to prevent overheating.
About Wire Gauge conversion (AWG to Metric)
1
Select Gauge
Choose an AWG number (e.g., 12 AWG).
2
Get Specs
Instantly see diameter, area, and electrical resistance estimates.
3
Review Results
Verify the output looks correct before using or downloading it.
4
Save Your Output
Click the download or copy button to export your results to your device or clipboard.
Key Features
Gauge to Dimension
Converts any AWG number into precise diameter in millimeters and inches.
Electrical Specs
Provides the cross-sectional area (mm²) needed for complex voltage drop calculations.
Solid vs Stranded Guide
Includes conversion logic suitable for both solid core and common stranded wire counts.
Frequently Asked Questions
In the AWG system, higher numbers represent thinner wires, while smaller numbers are for thicker wires.
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