556.5 HRB = 1,001.7 HV
| HRB | HV |
|---|---|
| 541.5 HRB | 974.7 |
| 546.5 HRB | 983.7 |
| 551.5 HRB | 992.7 |
| 556.5 | 1,001.7 |
| 561.5 HRB | 1,010.7 |
| 566.5 HRB | 1,019.7 |
| 571.5 HRB | 1,028.7 |
556.5 HRB = 1,001.7 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