555.5 HRC = 5,666.1 HV
| HRC | HV |
|---|---|
| 540.5 HRC | 5,513.1 |
| 545.5 HRC | 5,564.1 |
| 550.5 HRC | 5,615.1 |
| 555.5 | 5,666.1 |
| 560.5 HRC | 5,717.1 |
| 565.5 HRC | 5,768.1 |
| 570.5 HRC | 5,819.1 |
555.5 HRC = 5,666.1 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