Sheet Metal Gauge Size Chart
Easy to read and understand table or chart to convert gauge sizes in sheet metal to metric millimetres and imperial inches. Also shows weight per square foot (ft2) and weight per square metre (m2).
| Gauge | Thickness inches | Thickness millimetres | Weight lb/ft² | Weight kg/m² |
|---|---|---|---|---|
| 3 | 0.2391 | 6.073 | 9.754 | 47.624 |
| 4 | 0.2242 | 5.695 | 9.146 | 44.656 |
| 5 | 0.2092 | 5.314 | 8.534 | 41.668 |
| 6 | 0.1943 | 4.935 | 7.927 | 38.701 |
| 7 | 0.1793 | 4.554 | 7.315 | 35.713 |
| 8 | 0.1644 | 4.176 | 6.707 | 32.745 |
| 9 | 0.1495 | 3.797 | 6.099 | 29.777 |
| 10 | 0.1345 | 3.416 | 5.487 | 26.79 |
| 11 | 0.1196 | 3.038 | 4.879 | 23.822 |
| 12 | 0.1046 | 2.657 | 4.267 | 20.834 |
| 13 | 0.0897 | 2.278 | 3.659 | 17.866 |
| 14 | 0.0747 | 1.897 | 3.047 | 14.879 |
| 15 | 0.0673 | 1.709 | 2.746 | 13.405 |
| 16 | 0.0598 | 1.519 | 2.44 | 11.911 |
| 17 | 0.0538 | 1.367 | 2.195 | 10.716 |
| 18 | 0.0478 | 1.214 | 1.95 | 9.521 |
| 19 | 0.0418 | 1.062 | 1.705 | 8.326 |
| 20 | 0.0359 | 0.912 | 1.465 | 7.151 |
| 21 | 0.0329 | 0.836 | 1.342 | 6.553 |
| 22 | 0.0299 | 0.759 | 1.22 | 5.955 |
| 23 | 0.0269 | 0.683 | 1.097 | 5.358 |
| 24 | 0.0239 | 0.607 | 0.975 | 4.76 |
| 25 | 0.0209 | 0.531 | 0.853 | 4.163 |
| 26 | 0.0179 | 0.455 | 0.73 | 3.565 |
| 27 | 0.0164 | 0.417 | 0.669 | 3.267 |
| 28 | 0.0149 | 0.378 | 0.608 | 2.968 |
| 29 | 0.0135 | 0.343 | 0.551 | 2.689 |
| 30 | 0.012 | 0.305 | 0.49 | 2.39 |
| 31 | 0.0105 | 0.267 | 0.428 | 2.091 |
| 32 | 0.0097 | 0.246 | 0.396 | 1.932 |
| 33 | 0.009 | 0.229 | 0.367 | 1.793 |
| 34 | 0.0082 | 0.208 | 0.335 | 1.633 |
| 35 | 0.0075 | 0.191 | 0.306 | 1.494 |
| 36 | 0.0067 | 0.17 | 0.273 | 1.335 |
| 37 | 0.0064 | 0.163 | 0.261 | 1.275 |
| 38 | 0.006 | 0.152 | 0.245 | 1.195 |
