285.5 Mohs = 2.8 HRC
| Mohs | HRC |
|---|---|
| 270.5 Mohs | 2.65 |
| 275.5 Mohs | 2.7 |
| 280.5 Mohs | 2.75 |
| 285.5 | 2.8 |
| 290.5 Mohs | 2.85 |
| 295.5 Mohs | 2.9 |
| 300.5 Mohs | 2.95 |
285.5 Mohs = 2.8 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