677.5 HRC = 6,910.5 HV
| HRC | HV |
|---|---|
| 662.5 HRC | 6,757.5 |
| 667.5 HRC | 6,808.5 |
| 672.5 HRC | 6,859.5 |
| 677.5 | 6,910.5 |
| 682.5 HRC | 6,961.5 |
| 687.5 HRC | 7,012.5 |
| 692.5 HRC | 7,063.5 |
677.5 HRC = 6,910.5 HV
1 HRC ≈ 10.2 HV · 1 HRB ≈ 1.8 HV · 1 Mohs ≈ 0.1 HV — approximate; real conversions vary by material per ASTM E140