377.5 Mohs = 3.7 HRC
| Mohs | HRC |
|---|---|
| 362.5 Mohs | 3.55 |
| 367.5 Mohs | 3.6 |
| 372.5 Mohs | 3.65 |
| 377.5 | 3.7 |
| 382.5 Mohs | 3.75 |
| 387.5 Mohs | 3.8 |
| 392.5 Mohs | 3.85 |
377.5 Mohs = 3.7 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