120.5 Mohs = 1.18 HRC
| Mohs | HRC |
|---|---|
| 105.5 Mohs | 1.03 |
| 110.5 Mohs | 1.08 |
| 115.5 Mohs | 1.13 |
| 120.5 | 1.18 |
| 125.5 Mohs | 1.23 |
| 130.5 Mohs | 1.28 |
| 135.5 Mohs | 1.33 |
120.5 Mohs = 1.18 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