128.5 Mohs = 1.26 HRC
| Mohs | HRC |
|---|---|
| 113.5 Mohs | 1.11 |
| 118.5 Mohs | 1.16 |
| 123.5 Mohs | 1.21 |
| 128.5 | 1.26 |
| 133.5 Mohs | 1.31 |
| 138.5 Mohs | 1.36 |
| 143.5 Mohs | 1.41 |
128.5 Mohs = 1.26 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