© 2015 Organising Committee NAV 2015. It is very important to estimate the error included in measured data. This paper introduces uncertainty analysis for estimation of error band and reports the application of uncertainty analysis for measurement of added resistance in regular short waves. Uncertainty analysis is applied for the results of multiple tests in still water and in short waves obtained on three basins in National Maritime Research Institute, and uncertainty of added resistance due to short waves is assessed and compared among the basins.