378.5 Mohs = 3.71 HRC
| Mohs | HRC |
|---|---|
| 363.5 Mohs | 3.56 |
| 368.5 Mohs | 3.61 |
| 373.5 Mohs | 3.66 |
| 378.5 | 3.71 |
| 383.5 Mohs | 3.76 |
| 388.5 Mohs | 3.81 |
| 393.5 Mohs | 3.86 |
378.5 Mohs = 3.71 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