The BMEL's federal programme to promote the conversion of animal husbandry is a policy instrument that rewards participating farmers who implement measures aimed at improving animal welfare. The funding is dependent on the size of the herd and the investment volume and is granted on a staggered basis and pro rata for the investment volume and the additional operating costs. In this paper, the Thünen Institute of Farm Economics and the KTBL present calculation results on the investment requirements and the additional operating costs for the implementation of these measures. The calculations were carried out for sows(piglet production up to weaning), piglet rearing and pig fattening and for the animal welfare stages of outdoor climate, outdoor runs and organic pig farming. The investment costs determined for stables and facilities take into account the requirements of the measures, but essentially serve as a guide, as the investment funding will depend on the individual farm construction costs and application data. The operating costs, on the other hand, form the basis for funding for all participating farms, as these cannot be calculated and verified for each individual farm with reasonable effort. Depending on the animal welfare levels, the additional operating costs are between 28 and 36 percent for sow rearing, 12 and 36 percent for piglet rearing and 11 to 17 percent for pig fattening. It is planned to update the calculations at regular intervals in order to take account of changes of criteria, performance data, price ratios and other framework conditions.