221.5 HRC = 2,259.3 HV
| HRC | HV |
|---|---|
| 206.5 HRC | 2,106.3 |
| 211.5 HRC | 2,157.3 |
| 216.5 HRC | 2,208.3 |
| 221.5 | 2,259.3 |
| 226.5 HRC | 2,310.3 |
| 231.5 HRC | 2,361.3 |
| 236.5 HRC | 2,412.3 |
221.5 HRC = 2,259.3 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