The design in this project showcase the implementation of a Hardness Measurement Of Metal Using MATLAB.Hardness is the property of a material that resists bending, scratching & plastic deformation.In this method, a specific force is applied on the surface of metal.Thus, it results in the formation of an impression.The depth of the impression formed on the surface on the metal depicts the hardness of the metal.The value of depth measured is the value of hardness.In the present investigation, the hardness of a material is measured from the diameter of the indent formed.The depth and diameter of indentation directly proportional to each other.In the present study,images of the metal were taken for analysis.Image analysis using MATLAB software is employed to measure the diameter of the indentation from obtained images.Thus, from the measured value of diameter, the appropriate harness vale of the metal is calculated.