While fertility decline is a global phenomenon that has many causes, part of it can be explained by exposure to substances linked to reproductive toxicity that are produced and lead to human exposure through the environment and products. Authorities face challenges in regulating reprotoxic substances through actions such as bans and prohibitions, because of the difficulty in explicitly considering the economic benefits and costs of such regulations. Moreover, economic studies that show the value of reducing infertility caused by chemical exposure are not yet available. This paper is part of the series of large scale willingness to pay (WTP) studies resulting from the Surveys to elicit Willingness to pay to Avoid Chemicals related negative Health Effects (SWACHE) project that intends to improve the basis for doing cost benefit analyses of chemicals management options and environmental policies in general. The present paper details a stated preference survey estimating WTP to reduce the risk of infertility, filling an important gap in the valuation literature and addressing a need for applied benefits analysis for chemicals regulation. The SWACHE infertility survey was fielded in 10 countries: Australia, Canada, Chile, Germany, Japan, Poland, Portugal, Sweden, the United Kingdom and the United States.