This paper presents the implementation of an MS Excel tool for parameter optimization in environmental engineering education. Visual Basic for Applications v7.0 were used for implementation of the program. A number of test cases were also provided to test the performance of the tool including the fields of air pollution control, water treatment, and anaerobic treatment. For each test case, calculated coefficients of determination were 0.98 and above. Results suggested that the MS Excel tool produces satisfactorily fast and reliable results, and can be used confidently for optimization works in environmental studies.