Hardness Conversion Calculator | HRC, Brinell, Leeb, Vickers | Testavor Canada

Convert values instantly using ASTM-aligned scale data

Need to convert hardness readings between Rockwell, Brinell, Vickers, and Leeb? This free calculator does the work for you. Whether you're testing metals in a lab, on-site with a portable hardness tester, or reviewing inspection reports, our tool delivers quick, ASTM-aligned conversions for accurate decision-making.

  • ✔️ Free & no account needed
  • ✔️ Instant results across 4 major hardness scales
  • ✔️ Based on ASTM E140 reference values
  • ✔️ Trusted by Canadian QA teams & inspectors

Free Hardness Conversion Calculator – ASTM-Aligned & Instant

Convert between common hardness scales using approximate ASTM reference values. Select your input type, enter the value, and get instant conversions.

HRC: –

Brinell (HB): –

Vickers (HV): –

Leeb (HLD): –

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How to Convert Hardness Values

To convert hardness values between HRC, Brinell, Vickers, and Leeb, use the Testavor Calculator. Select the original scale, input your value, and view instant approximations based on ASTM E140.