662.5 Mohs = 6.5 HRC
| Mohs | HRC |
|---|---|
| 647.5 Mohs | 6.35 |
| 652.5 Mohs | 6.4 |
| 657.5 Mohs | 6.45 |
| 662.5 | 6.5 |
| 667.5 Mohs | 6.54 |
| 672.5 Mohs | 6.59 |
| 677.5 Mohs | 6.64 |
662.5 Mohs = 6.5 HRC
1 HRC ≈ 10.2 HV · 1 HRB ≈ 1.8 HV · 1 Mohs ≈ 0.1 HV — approximate; real conversions vary by material per ASTM E140