780.5 Mohs = 7.65 HRC
| Mohs | HRC |
|---|---|
| 765.5 Mohs | 7.5 |
| 770.5 Mohs | 7.55 |
| 775.5 Mohs | 7.6 |
| 780.5 | 7.65 |
| 785.5 Mohs | 7.7 |
| 790.5 Mohs | 7.75 |
| 795.5 Mohs | 7.8 |
780.5 Mohs = 7.65 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