124.5 Mohs = 1.22 HRC
| Mohs | HRC |
|---|---|
| 109.5 Mohs | 1.07 |
| 114.5 Mohs | 1.12 |
| 119.5 Mohs | 1.17 |
| 124.5 | 1.22 |
| 129.5 Mohs | 1.27 |
| 134.5 Mohs | 1.32 |
| 139.5 Mohs | 1.37 |
124.5 Mohs = 1.22 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