Mohs to HRC, Rockwell, Vickers, Brinell, and Shore—fast cross-reference for metallurgy, quality control, material selection, and shop-floor documentation. Free and instant. No sign-up required.
Scientific and technical measurements
Hardness values are reported differently across metals, ceramics, coatings, plastics, and elastomers. A supplier sheet may use Brinell, a process spec may require Rockwell, and a materials handbook may list Vickers or Mohs. This page gives you a fast cross-reference when you need to move between those standards.
For adjacent property checks, pair it with the Pressure Converter, Force Converter, and Temperature Converter when you are reviewing testing and process conditions together.
Hardness conversions are based on empirical relationships and reference tables rather than a single universal formula. Each scale uses different loads, indenter geometry, and interpretation.
That means the converter gives a practical engineering estimate, not an absolute physical identity. For procurement, inspection, and material-screening workflows this is often enough. For certification or safety-critical acceptance, always fall back to the governing standard.
Example
Mohs 9 → about HRC 70
Approximate range for very hard cutting materials.
Example
HRC 60 → about HV 700
Useful for steel heat-treatment comparisons.
Example
HB 200 → about HV 210
Typical low-alloy steel comparison point.
Example
Shore D 80 → hard polymer reference
Helpful for plastics and elastomer screening.
Cross-scale conversion should not replace the original hardness test for acceptance decisions. Surface condition, alloy family, heat treatment, and thickness all influence the relationship between one hardness scale and another.
They all measure resistance to indentation, but they use different indenters and test loads. Because the methods differ, conversions are approximate rather than universally exact.
Yes, but treat the result as an estimate. Mohs is a scratch-resistance scale, while HRC is an indentation-based Rockwell scale commonly used for metals and heat-treated parts.
Material composition, heat treatment, surface finish, and test procedure all influence the measured hardness. Two different alloys can show slightly different cross-scale relationships at the same nominal value.
It is useful when you need quick cross-reference values for material selection, QA documentation, machining decisions, supplier comparison, or reading standards that report different hardness methods.
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