🔩 Hardness Conversion Calculator
Estimate the equivalent hardness value between the Brinell (HB) and Vickers (HV) scales.
What this calculator does
This tool gives an approximate conversion between the Brinell (HB) and Vickers (HV) hardness scales, two common ways of measuring how resistant a metal is to indentation.
How the calculation works
Real hardness scale conversions are non-linear and depend on the specific material and standardized reference tables such as ASTM E140, because different indenters and load ranges are used for each scale. This calculator uses a widely cited simplified ratio (HV is roughly 1.05 times HB for many steels) to give a quick estimate in either direction.
Important caveat: this is a rough approximation for general reference and educational purposes only. For material certification, quality control, or engineering specifications, use the official ASTM E140 conversion tables or scale-specific testing appropriate to the material.