Values are based on the American National Standard for Industrial Wire Cloth (American Standard ASTM – E 11).
| US Mesh* | Microns | Inches | Millimeters |
| 35 | 500 | 0.0197 | 0.5 |
| 40 | 400 | 0.0165 | 0.4 |
| 45 | 354 | 0.0138 | 0.354 |
| 50 | 297 | 0.0117 | 0.297 |
| 60 | 250 | 0.0098 | 0.25 |
| 70 | 210 | 0.0083 | 0.21 |
| 80 | 177 | 0.007 | 0.177 |
| 100 | 149 | 0.0059 | 0.149 |
| 120 | 125 | 0.0049 | 0.125 |
| 140 | 105 | 0.0041 | 0.105 |
| 170 | 88 | 0.0035 | 0.088 |
| 200 | 74 | 0.0029 | 0.074 |
| 230 | 63 | 0.0025 | 0.063 |
| 270 | 53 | 0.0021 | 0.053 |
| 325 | 44 | 0.0017 | 0.044 |
| 400 | 37 | 0.0015 | 0.037 |
| 450 | 32 | 0.0013 | 0.032 |
| 500 | 25 | 0.0010 | 0.025 |
| 635 | 20 | 0.0008 | 0.020 |
