The Brinell Hardness (HB) Calculator is a practical online tool designed to calculate the Brinell hardness of metals and engineering materials quickly and accurately. By entering the applied test force, ball indenter diameter, and indentation diameter, users can instantly determine the Brinell hardness value (HBW). This calculator is ideal for mechanical engineers, material testing professionals, quality control inspectors, and metal fabrication specialists. Whether you are evaluating steel, aluminum, cast iron, or other metallic materials, the Brinell Hardness (HB) Calculator simplifies hardness testing calculations, supports material quality assessment, and helps improve efficiency in manufacturing and engineering applications.

Test Conditions

Choose a common Brinell test condition or enter your own force and ball diameter.

Selecting a preset fills in the force and ball diameter. Editing either value switches back to Custom.
1 kgf = 9.80665 N. Changing the unit converts the value.
Tungsten carbide ball (HBW). Standard sizes: 1, 2.5, 5 and 10 mm.
Used only in the test designation. Leave blank for the standard 10–15 s.
Indentation Measurement

Enter the average indentation diameter, or two diameters measured at right angles.

Measurement mode