Indian cables are sold by cross-sectional area in square millimetres (sq mm), but older drawings and imported equipment often quote wire gauge — SWG (Standard Wire Gauge) or AWG (American Wire Gauge). This chart gives the nearest equivalents.
| Area (sq mm) | Nearest AWG | Nearest SWG |
|---|---|---|
| 0.75 | 19 | 20 |
| 1.0 | 18 | 19 |
| 1.5 | 16 | 17 |
| 2.5 | 14 | 14 |
| 4.0 | 12 | 12 |
| 6.0 | 10 | 10 |
| 10 | 8 | 8 |
| 16 | 6 | 6 |
| 25 | 4 | 4 |
| 35 | 2 | 3 |