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Soil is a non-renewable natural resource. An accurate estimate of soil loss is essential for making agricultural policy decisions and for planning land use at all scales from farm to national levels. A wide range of erosion models, most of them combined with GIS and varying in purpose and details, are available for predicting soil loss. The Universal Soil Loss Equation (USLE) consists of statistical summaries of annual average soil loss data from plot studies in the United States. The equation has been worked out on the basis of the data of over 10,000 plot-years collected on erosion plots in the USA. However, the basic problem is the possibility of transferring empirical relations from the climatic and soil conditions in which they are measured into other geographical areas. This paper investigates the possibility of calculating the soil erodibility factor of the USLE with rainfall simulations and its importance in soil loss …