The aim of this research was to examine the differences in work-to-family and family-to-work conflict and coping strategies between different age groups and the relationship between these conflicts and the dominant style of coping with stress. The research questionnaire included questions on age, education, partner and child status, work experience and the division of labor in the household, the Endler and Parker Coping with Stressful Situations Questionnaire (CISS) and the Work-Family Conflict Scale (Netemeyer et al., 1996). A total of 334 participants, working and residing in the Republic of Croatia, between the ages of 19 and 63 completed the online questionnaire. According to Matthews et al. (2010) study, the participants were divided into 3 age groups: early adulthood (18 to 28; n=101), middle adulthood (29 to 44; n=126) and older adulthood (45 and older; n=107). There was no difference in work-to-family conflict between different age groups, but there was a significant difference in family-to-work conflict when controlling for child status, with the youngest group reporting greater conflict than the older groups. Avoidance coping was found to be more common in the youngest group, while no age group difference was found for emotion-focused coping and problem-focused coping. Moreover, a greater tendency towards emotion-focused coping (which was also more common for women than men) was related to a higher level of both directions of work-family conflict. Problem-focused coping was related to lower family-to-work conflict only in the oldest group, while a higher level of the same conflict was related to avoidance coping in the youngest group. The results of this research call for the need to encourage strategies of problem-focused coping, especially in younger adults, and to take into account different life circumstances and stages in developing resources to deal with the stress of juggling work and different life roles.