102.5 Mohs = 1 HRC
| Mohs | HRC |
|---|---|
| 87.5 Mohs | 0.86 |
| 92.5 Mohs | 0.91 |
| 97.5 Mohs | 0.96 |
| 102.5 | 1 |
| 107.5 Mohs | 1.05 |
| 112.5 Mohs | 1.1 |
| 117.5 Mohs | 1.15 |
102.5 Mohs = 1 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