Free Engineering Tool
Wire Gauge Converter
Convert between AWG, mm², and SWG wire gauges. Look up diameter, cross-section area, and DC resistance for copper conductors.
Conversion Results
| AWG | ⌀ mm | mm² | Ω/m (Cu) | Max A (approx) |
|---|
AWG (American Wire Gauge) is a standardized wire gauge system used in North America. Smaller AWG numbers indicate larger wire. AWG 0000 (4/0) is the largest standard size.
Diameter in mm = 0.127 × 92^((36−AWG)/39). Area = π/4 × d². Example: AWG 10 ≈ 5.26 mm², AWG 14 ≈ 2.08 mm².
AWG is used in North America; SWG (Standard Wire Gauge) is used in the UK. Same gauge number gives different diameters in each system.
Depends on current: AWG 14 for 15A, AWG 12 for 20A, AWG 10 for 30A, AWG 8 for 40A. Always check local codes for your application.
Yes — thinner wire (higher gauge number) has higher resistance. R = ρ×L/A where ρ for copper at 20°C is 1.724×10⁻⁸ Ω·m.
The procedures described on this page were developed and field-tested by the Vibromera team using the Balanset-1A, a portable dual-channel balancer and vibration analyzer for on-site rotor balancing.
Professional instruments.
Nikolai Shelkovenko
Nikolai Shelkovenko is a vibration analysis engineer and the founder and CEO of Vibromera. For more than 15 years he has balanced rotating equipment in the field rather than on a test bench: mulchers, industrial fans, crushers, centrifuges, shafts and spindles. That work is what the Balanset instruments grew out of — they were designed as a tool a specialist can carry to the machine and use alone, on site, not as laboratory equipment. Vibromera was founded in 2017 and has been based in Porto, Portugal, since 2023. Development, assembly and support of the Balanset line all happen here. The flagship instrument is the Balanset-1A, a portable analyser for single- and two-plane balancing and for vibration diagnostics. Nikolai is personally involved in customer support, in working through difficult balancing cases and in the development of the software. He works with customers worldwide, in any language.
