Quality in early childhood education is an important topic in many countries. Research suggests that high-quality preschool provides many long-term benefits for young children and society. How to measure early childhood quality however can be problematic. One approach has been the use of the Early Childhood Environmental Rating Scale (ECERS), an observational scale of the learning environment created in the United States of America. The scale has been used in over 30 countries and translated into different languages. This article discusses cultural issues in relation to the use of ECERS-3 in Swedish preschools. While many of the indicators are easily transferable, some need cultural consideration. These include understanding the Swedish child perspective as expressed in the preschool curriculum, Swedish preschool design and Swedish pedagogy around interaction and safety issues. The article suggests that an adaptation of the scale is needed to be implemented effectively in the Swedish preschool context. (author abstract)