266.5 HRC = 2,718.3 HV
| HRC | HV |
|---|---|
| 251.5 HRC | 2,565.3 |
| 256.5 HRC | 2,616.3 |
| 261.5 HRC | 2,667.3 |
| 266.5 | 2,718.3 |
| 271.5 HRC | 2,769.3 |
| 276.5 HRC | 2,820.3 |
| 281.5 HRC | 2,871.3 |
266.5 HRC = 2,718.3 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