We analyze financial literacy regarding interest rates, inflation, and risk diversification in nine Eastern European countries based on survey data collected in the fall 2022. The percentage of individuals with an understanding of all three concepts is generally low but varies strongly among countries, from 13 percent in Romania to 47 percent in the Czech Republic. Financial illiteracy is particularly acute among those with primary or lower secondary education. Among the three concepts, inflation is what people know best in eight out of nine countries – a pattern which has emerged recently and is in contrast to other countries, where interest rate literacy is highest. Differences in lifetime inflation experience, in particular experience of high or hyperinflation, affect inflation literacy. Higher financial literacy is associated with a higher propensity to save and a lower propensity to be financially vulnerable in six out of nine countries.