257.5 HRC = 2,626.5 HV
| HRC | HV |
|---|---|
| 242.5 HRC | 2,473.5 |
| 247.5 HRC | 2,524.5 |
| 252.5 HRC | 2,575.5 |
| 257.5 | 2,626.5 |
| 262.5 HRC | 2,677.5 |
| 267.5 HRC | 2,728.5 |
| 272.5 HRC | 2,779.5 |
257.5 HRC = 2,626.5 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