489.5 Mohs = 4.8 HRC
| Mohs | HRC |
|---|---|
| 474.5 Mohs | 4.65 |
| 479.5 Mohs | 4.7 |
| 484.5 Mohs | 4.75 |
| 489.5 | 4.8 |
| 494.5 Mohs | 4.85 |
| 499.5 Mohs | 4.9 |
| 504.5 Mohs | 4.95 |
489.5 Mohs = 4.8 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