220.5 Mohs = 2.16 HRC
| Mohs | HRC |
|---|---|
| 205.5 Mohs | 2.01 |
| 210.5 Mohs | 2.06 |
| 215.5 Mohs | 2.11 |
| 220.5 | 2.16 |
| 225.5 Mohs | 2.21 |
| 230.5 Mohs | 2.26 |
| 235.5 Mohs | 2.31 |
220.5 Mohs = 2.16 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