Wire Gauge Converter
Convert between AWG and mm² wire gauges with diameter, resistance, and ampacity reference.
Category: Life Tools
When to use?
When overseas (AWG) and domestic (mm²) wire specs are mixed, quickly convert between standards.
How to use
- Select an AWG number or enter mm² value.
- See diameter, cross-section, resistance, and ampacity results.
Input Explanation
Input the AWG size or diameter/cross-sectional area value.
Calculation Basis
Calculates based on the AWG standard formula: d = 0.127 * 92^((36-n)/39) mm, and converts between diameter, area, and resistance.
Usage Examples
- International parts - Find the domestic mm² equivalent for AWG-labeled wire.
- Wire selection - Choose the right gauge for your required current capacity.
Examples
- Enter '12 AWG' to get its diameter of 2.053 mm and maximum current carrying capacity
- Input '2.0 mm' diameter to find the nearest AWG standard size
Cautions
- Ampacity estimates are general guidelines; actual limits depend on insulation temperature rating, conduit type, and local electrical codes.
FAQ
Lower AWG = thicker?
Yes — smaller AWG numbers mean thicker wire.
What is KS?
Korean Standard (KS) uses mm² units for wire cross-section area.
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