166.5 HRC = 1,698.3 HV
| HRC | HV |
|---|---|
| 151.5 HRC | 1,545.3 |
| 156.5 HRC | 1,596.3 |
| 161.5 HRC | 1,647.3 |
| 166.5 | 1,698.3 |
| 171.5 HRC | 1,749.3 |
| 176.5 HRC | 1,800.3 |
| 181.5 HRC | 1,851.3 |
166.5 HRC = 1,698.3 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