Wiring Harness Tools
Free reference tools and calculators for wiring harness designers and automotive electricians.
AWG to mm² Wire Gauge Conversion Chart
Full reference table for AWG wire gauges including diameter (mm and inches), cross-sectional area (mm²), and circular mil area (CMA/kcmil). Includes an interactive two-way converter.
CMA Calculator
Look up Circular Mil Area (CMA) for any AWG gauge, or build a multi-wire bundle to calculate total conductor cross-section. Useful for verifying current capacity of spliced circuits.