308.5 Mohs = 3.02 HRC
| Mohs | HRC |
|---|---|
| 293.5 Mohs | 2.88 |
| 298.5 Mohs | 2.93 |
| 303.5 Mohs | 2.98 |
| 308.5 | 3.02 |
| 313.5 Mohs | 3.07 |
| 318.5 Mohs | 3.12 |
| 323.5 Mohs | 3.17 |
308.5 Mohs = 3.02 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