• Omnilude ToolsCollection of Online Tools
  • Home
Online Tools
  • Developer Tools
  • Text Tools
  • Useful Tools
  • Time Tools
  • Calculator Tools
    • Unit Converter
    • GPS Coordinates
    • Pressure
    • Force
    • Energy
    • Decimal-Fraction
    • Wire Size
    • Resistor

Wire Size

AWG/mm²/kcmil conversion

AWG
12
Cross-sectional Area
3.309mm²
kcmil (MCM)
6.53
Diameter
2.053mm
Diameter
0.0808inch
Resistance (20°C)
5.211Ω/km
Max Current (Reference)
~20A
122.05 mm
AWG 122.05 mm
AWG 102.59 mm
AWG 83.26 mm
AWG 64.12 mm

AWG Guide

What is AWG?

American Wire Gauge. Smaller numbers mean thicker wires. Wires thicker than 0 are denoted as 2/0, 3/0, 4/0.

Area Formula

AWG area (kcmil) = 1000 × (diameter in mils)². 1 kcmil = 0.5067 mm²

What is the Wire Size Converter?

A tool that converts between wire gauge units including AWG (American Wire Gauge), mm² (square millimeter), and kcmil (MCM). Provides comprehensive information about wire specifications including cross-sectional area, diameter, resistance, and ampacity.

How to Use

Frequently Asked Questions

Tips & Best Practices

Omnilude Tools

A free collection of online tools for developers, designers, and creators. All data is processed locally in your browser.

Developer Tools

  • UUID Generator
  • Timestamp Converter
  • Encoder/Decoder
  • Color Picker

Text Tools

  • JSON Editor
  • Text Compare
  • Text Counter
  • Markdown

Legal

  • Privacy Policy
  • Terms of Service
  • About Us

© 2026 Omnilude. All rights reserved.