Due to a rising demand in wood fuel, the knowledge of the energy content of customary wood fuel assortments has been gaining in importance in wood fuel trade. In order to facilitate the conversion from prices per volume or weight unit commonly used in forestry and the timber industry to energy prices relevant in the context of energy production, the Austrian Energy Agency has compiled an easy-to-use calculation tool. With only a few required variables the program can quickly calculate the most important parameters for a variety of wood fuel assortments.