Hardness conversion table
| Vickers HV | Rockwell E Hre | Rockwell C Hrc | Examples |
|---|---|---|---|
| 125 | 68.5 | - | |
| 127 | 70.0 | - | |
| 130 | 71.0 | - | |
| 132 | 72.0 | - | |
| 135 | 73.0 | - | |
| 137 | 74.0 | - | |
| 140 | 75.0 | - | |
| 143 | 76.5 | - | |
| 147 | 77.5 | - | |
| 150 | 78.5 | - | |
| 153 | 79.5 | - | |
| 156 | 81.0 | - | |
| 159 | 82.0 | - | |
| 163 | 83.0 | - | |
| 178 | 87.0 | - | |
| 183 | 88.0 | - | |
| 188 | 89.0 | - | |
| 192 | 90.0 | - | |
| 196 | 90.5 | - | |
| 202 | 91.5 | - | |
| 207 | 93.0 | - | |
| 212 | 93.5 | - | |
| 218 | 94.5 | - | |
| 222 | 95.5 | - | |
| 228 | 96.5 | - | |
| 234 | 97.5 | 19.0 | |
| 241 | 98.0 | 20.5 | |
| 247 | 99.0 | 21.6 | |
| 253 | 100.0 | 22.8 | |
| 261 | 101.0 | 24.1 | |
| 269 | - | 25.4 | |
| 276 | - | 26.5 | |
| 284 | - | 27.6 | |
| 292 | - | 28.7 | |
| 301 | - | 29.9 | |
| 310 | - | 31.0 | |
| 319 | - | 32.1 | |
| 329 | - | 33.2 | |
| 339 | - | 34.3 | |
| 350 | - | 35.4 | |
| 360 | - | 36.6 | |
| 372 | - | 37.8 | |
| 383 | - | 39.1 | |
| 396 | - | 40.4 | |
| 410 | - | 41.8 | |
| 425 | - | 43.1 | |
| 440 | - | 44.5 | |
| 457 | - | 45.8 | |
| 474 | - | 47.2 | |
| 495 | - | 48.7 | |
| 516 | - | 50.3 | |
| 535 | - | 51.4 | |
| 553 | - | 52.5 | |
| 560 | - | 53.0 | |
| 577 | - | 54.0 | |
| 595 | - | 55.0 | |
| 613 | - | 56.0 | |
| 633 | - | 57.0 | |
| 653 | - | 58.0 | |
| 674 | - | 59.0 | |
| 697 | - | 60.0 | |
| 720 | - | 61.0 | |
| 746 | - | 62.0 | |
| 772 | - | 63.0 | |
| 800 | - | 64.0 | |
| 832 | - | 65.0 | |
| - | - | - |
Conversion from one hardness scale to another is only an approximate process. Differents types of hardness tests do not all measure the same combination of material properties. Because of the wide range of variation among different materials, it is not possible to state confidence limits for the errors in using a conversion chart.