Using longitudinal panel data from the Generations and Gender Surveys on 2,847 cohabiters from seven countries, we examine the role of marital attitudes in the transition from cohabitation to marriage and compare the strength of this association between Western and Eastern Europe. We expect a positive attitude towards marriage to increase the likelihood of cohabiters marrying. We also expect the association between personal attitudes and marriage formation to be weaker among cohabiters from Eastern Europe, due to stronger normative pressure to marry in contexts where cohabitation is less prevalent.In both Eastern and Western European countries, we find a clear positive association between favourable views on marriage among cohabiters and th...