618.5 HRB = 1,113.3 HV
| HRB | HV |
|---|---|
| 603.5 HRB | 1,086.3 |
| 608.5 HRB | 1,095.3 |
| 613.5 HRB | 1,104.3 |
| 618.5 HRB | 1,113.3 |
| 623.5 HRB | 1,122.3 |
| 628.5 HRB | 1,131.3 |
| 633.5 HRB | 1,140.3 |
618.5 HRB = 1,113.3 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