Here are uploaded Matlab codes used in the paper entitled "A novel semi-analytical (inertial) solution for determining permeability of highly pervious porous materials using the two-reservoir laboratory setup" for performing the calculation and plotting the results. Matlab scripts for running the code are "Semianalytical_vs_Measurements.m", "Semianalytical_vs_Numerical.m", "Semianalytical_vs_FallingHead.m", "SensitivityAnalysis.m", while the remaining files are Matlab functions used by those scripts. More details about the algorithm used in functions "f_semianalit.m" and "f_numerical.m" can be found in the paper.