Using newly available investment data from the World Bank’s World Development Indicators database we provide an update and an extension of the aggregate capital stock estimations provided in (Berlemann, M. and J.-E. Wesselhöft (2014): Estimating Aggregate Capital Stocks Using the Perpetual Inventory Method: A Survey of Previous Implementations and New Empirical Evidence for 103 Countries, Review of Economics 65(1), 1–34). The new database contains comparable unbalanced panel data for 122 countries and the period of 1960 to 2016.