Mil (Thou) to Millimeter Conversion Chart
This chart converts Mil (Thou) (mil) to Millimeter (mm) using the factor 0.0254. One mil equals 0.0254 mm; one mm equals 39.370079 mil.
mm = mil × 0.0254
| mil | mm |
|---|---|
| 5 | 0.127 |
| 10 | 0.254 |
| 15 | 0.381 |
| 20 | 0.508 |
| 25 | 0.635 |
| 30 | 0.762 |
| 35 | 0.889 |
| 40 | 1.016 |
| 45 | 1.143 |
| 50 | 1.27 |
| 55 | 1.397 |
| 60 | 1.524 |
| 65 | 1.651 |
| 70 | 1.778 |
| 75 | 1.905 |
| 80 | 2.032 |
| 85 | 2.159 |
| 90 | 2.286 |
| 95 | 2.413 |
| 100 | 2.54 |
| 105 | 2.667 |
| 110 | 2.794 |
| 115 | 2.921 |
| 120 | 3.048 |
| 125 | 3.175 |
| 130 | 3.302 |
| 135 | 3.429 |
| 140 | 3.556 |
| 145 | 3.683 |
| 150 | 3.81 |
| 155 | 3.937 |
| 160 | 4.064 |
| 165 | 4.191 |
| 170 | 4.318 |
| 175 | 4.445 |
| 180 | 4.572 |
| 185 | 4.699 |
| 190 | 4.826 |
| 195 | 4.953 |
| 200 | 5.08 |
| 205 | 5.207 |
| 210 | 5.334 |
| 215 | 5.461 |
| 220 | 5.588 |
| 225 | 5.715 |
| 230 | 5.842 |
| 235 | 5.969 |
| 240 | 6.096 |
| 245 | 6.223 |
| 250 | 6.35 |
| mil | mm |
|---|---|
| 255 | 6.477 |
| 260 | 6.604 |
| 265 | 6.731 |
| 270 | 6.858 |
| 275 | 6.985 |
| 280 | 7.112 |
| 285 | 7.239 |
| 290 | 7.366 |
| 295 | 7.493 |
| 300 | 7.62 |
| 305 | 7.747 |
| 310 | 7.874 |
| 315 | 8.001 |
| 320 | 8.128 |
| 325 | 8.255 |
| 330 | 8.382 |
| 335 | 8.509 |
| 340 | 8.636 |
| 345 | 8.763 |
| 350 | 8.89 |
| 355 | 9.017 |
| 360 | 9.144 |
| 365 | 9.271 |
| 370 | 9.398 |
| 375 | 9.525 |
| 380 | 9.652 |
| 385 | 9.779 |
| 390 | 9.906 |
| 395 | 10.033 |
| 400 | 10.16 |
| 405 | 10.287 |
| 410 | 10.414 |
| 415 | 10.541 |
| 420 | 10.668 |
| 425 | 10.795 |
| 430 | 10.922 |
| 435 | 11.049 |
| 440 | 11.176 |
| 445 | 11.303 |
| 450 | 11.43 |
| 455 | 11.557 |
| 460 | 11.684 |
| 465 | 11.811 |
| 470 | 11.938 |
| 475 | 12.065 |
| 480 | 12.192 |
| 485 | 12.319 |
| 490 | 12.446 |
| 495 | 12.573 |
| 500 | 12.7 |
How to use this chart
Find the mil value in the left column and read its mm equivalent on the right. Every row uses the same conversion factor, so the printable table is suitable for quick reference without recalculating each value.
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