Electronics
Wire gauge (AWG)
Diameter, cross-section and max current of a wire by AWG.
- Instant
- Free
- Private (processed locally)
- No sign-up
Find the specs
Pick the AWG gauge: the tool shows the diameter, cross-section and indicative max current.
Common gauges
| AWG | Diameter | Section | Current |
|---|---|---|---|
| 10 | 2.59 mm | 5.26 mm² | 55 A |
| 14 | 1.63 mm | 2.08 mm² | 32 A |
| 18 | 1.02 mm | 0.82 mm² | 16 A |
| 22 | 0.64 mm | 0.33 mm² | 7 A |
Indicative ampacity (copper, chassis). 100% local calculation.
Frequently asked questions
What is AWG?
American Wire Gauge: a standard where a larger number means a thinner wire (AWG 24 < AWG 10).
How is the diameter computed?
Diameter (mm) = 0.127 × 92^((36−n)/39). The section follows from π/4 × diameter².
Is the ampacity reliable?
Indicative: it depends on standard, insulation, temperature and bundling. Follow your local code.