mm² to AWG/kcmil Conversion Chart
Free download · 85 × 54mm (credit card size)
International electrical projects constantly require converting between metric (mm²) and American Wire Gauge (AWG/kcmil) cable sizes. This pocket card provides a clear two-column conversion table covering 21 sizes from 0.5mm² (20 AWG) through 500mm² (1000 kcmil), with approximate conductor diameters in millimeters. The reverse side shows the conversion formulas — area from gauge, AWG-to-diameter, and kcmil-to-mm² — plus key notes on how the AWG numbering system works (larger numbers = smaller wires). Essential for engineers working with mixed US and international equipment, reviewing manufacturer datasheets, or specifying cables for export projects. Print, laminate, and keep in your wallet for instant reference at trade shows, on site, or in the office.
What's Included
How to Print
- ●Recommended paper: 250–300gsm cardstock
- ●Print double-sided, flip on short edge
- ●Cut along crop marks with a paper trimmer
- ●Laminate with 80–125 micron pouches for durability
- ●Fits in wallet, toolbox, or pocket
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Frequently Asked Questions
What paper should I print this on?
Print on 250–300gsm cardstock. Use duplex printing and cut along crop marks. Laminate for long-term use.
Can I distribute this to my team?
Yes. Free to print and distribute. Particularly useful for teams working on projects with mixed US and international equipment.
What standard does this reference?
AWG is defined by ASTM B258. Metric sizes follow IEC 60228. The conversion ratios are mathematical constants based on conductor cross-sectional area.
How often is this updated?
Wire gauge definitions are fixed mathematical standards. Conversions do not change between editions.