Question 1

What is 663 Mohs in HRC?

Accepted Answer

663 Mohs = 6.5 HRC. Use the converter on this page to convert to other hardness units instantly.

Question 2

How do you convert Mohs to HRC?

Accepted Answer

Formula (approximate): 1 HRC ≈ 10.2 HV · 1 HRB ≈ 1.8 HV · 1 Mohs ≈ 0.1 HV — approximate; real conversions vary by material per ASTM E140. Multiply your Mohs value by the appropriate factor to get HRC, or use the interactive converter above.

Question 3

What is 6.5 HRC in Mohs?

Accepted Answer

6.5 HRC = 663 Mohs.

Mohs	HRC
648 Mohs	6.35
653 Mohs	6.4
658 Mohs	6.45
663	6.5
668 Mohs	6.55
673 Mohs	6.6
678 Mohs	6.65

663 Mohs to HRC

Formula (approximate)