Tubing Wall Gauge Chart | ANSI Pipe Schedules Chart | Conduit Chart
Tubing Wall Gauge Chart
Birmingham Wire Gauge (BWG) Equivalent

| Gauge | Inches | Gauge | Inches |
|---|---|---|---|
| 0OOO | 0.454 | 13 | 0.095 |
| OOO | 0.425 | 14 | 0.083 |
| OO | 0.38 | 15 | 0.072 |
| O | 0.34 | 16 | 0.065 |
| 1 | 0.3 | 17 | 0.058 |
| 2 | 0.284 | 18 | 0.049 |
| 3 | 0.259 | 19 | 0.042 |
| 4 | 0.238 | 20 | 0.035 |
| 5 | 0.22 | 21 | 0.032 |
| 6 | 0.203 | 22 | 0.028 |
| 7 | 0.18 | 23 | 0.025 |
| 8 | 0.165 | 24 | 0.022 |
| 9 | 0.148 | 25 | 0.02 |
| 10 | 0.134 | 26 | 0.018 |
| 11 | 0.12 | 27 | 0.016 |
| 12 | 0.109 | 28 | 0.014 |
| Pipe Size | OD | Schedule 5 |
10 | 20 | 30 | 40 (Standard) | 60 | 80 (Extra Heavy) | 100 | 120 | 140 | 160 | 2X Heavy |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 0.405 | 0.035 | 0.049 | - | - | 0.07 | - | 0.095 | - | - | - | - | - |
| 1/4 | 0.54 | 0.049 | 0.065 | - | - | 0.09 | - | 0.119 | - | - | - | - | - |
| 3/8 | 0.675 | 0.065 | 0.065 | - | - | 0.09 | - | 0.126 | - | - | - | - | - |
| 1/2 | 0.84 | 0.065 | 0.083 | - | - | 0.11 | - | 0.147 | - | - | - | 0.187 | 0.294 |
| 3/4 | 1.050 | 0.065 | 0.083 | - | - | 0.11 | - | 0.154 | - | - | - | 0.218 | 0.308 |
| 1 | 1.315 | 0.065 | 0.109 | - | - | 0.13 | - | 0.179 | - | - | - | 0.25 | 0.358 |
| 1-1/4 | 1.66 | 0.065 | 0.109 | - | - | 0.14 | - | 0.191 | - | - | - | 0.25 | 0.382 |
| 1-1/2 | 1.9 | 0.065 | 0.109 | - | - | 0.15 | - | 0.2 | - | - | - | 0.281 | 0.4 |
| 2 | 2.375 | 0.065 | 0.109 | - | - | 0.15 | - | 0.218 | - | - | - | 0.343 | 0.436 |
| 2-1/2 | 2.875 | 0.083 | 0.12 | - | - | 0.20 | - | 0.276 | - | - | - | 0.375 | 0.552 |
| 3 | 3.5 | 0.083 | 0.12 | - | - | 0.22 | - | 0.3 | - | - | - | 0.437 | 0.6 |
| 3-1/2 | 4 | 0.083 | 0.12 | - | - | 0.23 | - | 0.318 | - | - | - | .- | 0.636 |
| 4 | 4.5 | 0.083 | 0.12 | - | - | 0.24 | .281 | 0.337 | - | 0.437 | - | 0.531 | 0.674 |
| 4-1/2 | 5 | - | - | - | - | 2.47 | - | 0.355 | - | - | - | - | 0.71 |
| 5 | 5.563 | 0.109 | 0.134 | - | - | 0.26 | - | 0.375 | - | 0.5 | - | 0.625 | 0.75 |
| 6 | 6.625 | 0.109 | 0.134 | - | - | 0.28 | - | 0.432 | - | 0.562 | - | 0.718 | 0.864 |
| 7 | 7.625 | - | - | - | - | 0.30 | - | 0.5 | - | - | - | - | 0.875 |
| 8 | 8.625 | 0.109 | 0.148 | 0.25 | 0.277 | 0.32 | .406 | 0.5 | 0.593 | 0.718 | 0.812 | 0.906 | 0.875 |
| 9 | 9.625 | - | - | - | - | 0.34 | - | 0.5 | - | - | - | - | - |
| EMT | IMC | RIGID | ||||||
|---|---|---|---|---|---|---|---|---|
| Nominal Trade Size | Outside Diameter | Wall Thickness | Nominal Trade Size | Outside Diameter | Wall Thickness | Nominal Trade Size | Outside Diameter | Wall Thickness |
| 1/2 | 0.706 | 0.042 | 1/2 | 0.815 | 0.070 | 1/2 | 0.840 | 0.104 |
| 3/4 | 0.922 | 0.049 | 3/4 | 1.029 | 0.075 | 3/4 | 1.050 | 0.107 |
| 1 | 1.163 | 0.057 | 1 | 1.029 | 0.085 | 1 | 1.315 | 0.126 |
| 1-1/4 | 1.510 | 0.065 | 1-1/4 | 1.638 | 0.085 | 1-1/4 | 1.660 | 0.133 |
| 1-1/2 | 1.740 | 0.065 | 1-1/2 | 1.883 | 0.090 | 1-1/2 | 1.900 | 0.138 |
| 2 | 2.197 | 0.065 | 2 | 2.360 | 0.095 | 2 | 2.375 | 0.146 |
| 2-1/2 | 2.875 | 0.072 | 2-1/2 | 2.857 | 0.130 | 2-1/2 | 2.875 | 0.193 |
| 3 | 3.5 | 0.072 | 3 | 3.476 | 0.130 | 3 | 3.500 | 0.250 |
| 3-1/2 | 4.000 | 0.083 | 4 | 0.466 | 0.130 | 4 | 4.500 | 0.225 |
| 4 | 4.500 | 0.083 | 4 | 0.466 | 1.130 | 4 | 4.500 | 0.225 |
| 5 | - | - | - | - | - | 5 | 5.563 | 0.245 |
| 6 | - | - | - | - | - | 6 | 6.625 | 0.266 |

