401.5 Mohs = 3.94 HRC
| Mohs | HRC |
|---|---|
| 386.5 Mohs | 3.79 |
| 391.5 Mohs | 3.84 |
| 396.5 Mohs | 3.89 |
| 401.5 | 3.94 |
| 406.5 Mohs | 3.99 |
| 411.5 Mohs | 4.03 |
| 416.5 Mohs | 4.08 |
401.5 Mohs = 3.94 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