AWG Wire Gauge Chart
AWG wire gauge chart for AWG 0000 to 40: theoretical wire diameter, area in mm² and the nearest IEC size. No current rating. Labelled drawing.
For preliminary reference on diameter and geometric area only. The IEC size is a numerical comparison, not an equivalent product or a safe selection. Current rating, insulation, installation and protection are excluded. A qualified engineer must make the final selection under the applicable standard.
Dimension drawing and symbols
- d
- Wire diameter mm
- A
- Cross sectional area mm²
d is the diameter of a bare solid wire and A its circular area. Insulation and stranded conductors are not included.
Columns
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Visible rows: 44
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| AWG | ddiametermm | Aareamm² | nearest IECmm² |
|---|---|---|---|
| 0000 | 11.68400 | 107.21930 | 95.00 |
| 000 | 10.40490 | 85.02877 | 95.00 |
| 00 | 9.26583 | 67.43088 | 70.00 |
| 0 | 8.25146 | 53.47512 | 50.00 |
| 1 | 7.34814 | 42.40770 | 35.00 |
| 2 | 6.54371 | 33.63083 | 35.00 |
| 3 | 5.82734 | 26.67046 | 25.00 |
| 4 | 5.18940 | 21.15064 | 25.00 |
| 5 | 4.62129 | 16.77322 | 16.00 |
| 6 | 4.11538 | 13.30177 | 16.00 |
| 7 | 3.66485 | 10.54878 | 10.00 |
| 8 | 3.26364 | 8.36556 | 10.00 |
| 9 | 2.90636 | 6.63419 | 6.00 |
| 10 | 2.58819 | 5.26115 | 6.00 |
| 11 | 2.30485 | 4.17229 | 4.00 |
| 12 | 2.05253 | 3.30877 | 4.00 |
| 13 | 1.82783 | 2.62398 | 2.50 |
| 14 | 1.62773 | 2.08091 | 2.50 |
| 15 | 1.44953 | 1.65023 | 1.50 |
| 16 | 1.29085 | 1.30870 | 1.50 |
| 17 | 1.14953 | 1.03784 | 1.00 |
| 18 | 1.02369 | 0.82305 | 0.75 |
| 19 | 0.91162 | 0.65271 | 0.75 |
| 20 | 0.81182 | 0.51762 | 0.50 |
| 21 | 0.72295 | 0.41049 | no value |
| 22 | 0.64380 | 0.32553 | no value |
| 23 | 0.57332 | 0.25816 | no value |
| 24 | 0.51056 | 0.20473 | no value |
| 25 | 0.45467 | 0.16236 | no value |
| 26 | 0.40489 | 0.12876 | no value |
| 27 | 0.36057 | 0.10211 | no value |
| 28 | 0.32109 | 0.08098 | no value |
| 29 | 0.28594 | 0.06422 | no value |
| 30 | 0.25464 | 0.05093 | no value |
| 31 | 0.22676 | 0.04039 | no value |
| 32 | 0.20194 | 0.03203 | no value |
| 33 | 0.17983 | 0.02540 | no value |
| 34 | 0.16014 | 0.02014 | no value |
| 35 | 0.14261 | 0.01597 | no value |
| 36 | 0.12700 | 0.01267 | no value |
| 37 | 0.11310 | 0.01005 | no value |
| 38 | 0.10072 | 0.00797 | no value |
| 39 | 0.08969 | 0.00632 | no value |
| 40 | 0.07987 | 0.00501 | no value |
Quick answers
- AWG 6: wire diameter 4.11538 mm, area 13.30177 mm², nearest IEC size 16 mm². View in table
- AWG 8: wire diameter 3.26364 mm, area 8.36556 mm², nearest IEC size 10 mm². View in table
- AWG 10: wire diameter 2.58819 mm, area 5.26115 mm², nearest IEC size 6 mm². View in table
- AWG 12: wire diameter 2.05253 mm, area 3.30877 mm², nearest IEC size 4 mm². View in table
- AWG 14: wire diameter 1.62773 mm, area 2.08091 mm², nearest IEC size 2.5 mm². View in table
- AWG 16: wire diameter 1.29085 mm, area 1.3087 mm², nearest IEC size 1.5 mm². View in table
- AWG 18: wire diameter 1.02369 mm, area 0.82305 mm², nearest IEC size 0.75 mm². View in table
- AWG 20: wire diameter 0.81182 mm, area 0.51762 mm², nearest IEC size 0.5 mm². View in table
Conditions and notes
Geometry of a bare solid round wire. No current rating is provided.
Diameter follows d = 0.127 × 92^((36 − n)/39) mm. Use n = −3, −2 and −1 for 0000, 000 and 00. Area is A = πd²/4. The IEC column finds the smallest absolute area difference among nominal sizes from 0.5 to 120 mm². Values below that range have no match. This does not establish cable equivalence or select a conductor size.
Sources
This table is for preliminary reference. Check the applicable standard and product conditions before use.
- Source 1. Version accessed. Accessed: 2026-10-16
- Source 2. IEC 60228, table as accessed. Accessed: 2026-10-16
- Source 3. IEC 60228, table as accessed. Accessed: 2026-10-16
Data version: 2026-10-16