The article presents a critical analysis of indices and indicators of gender equality and suggests a new comprehensive approach to measuring gender equality of opportunity within axial institutions, which are family, labor market, education, science, public and corporate governance. Whereas the main gender indices measure inequality of access to resources, the axial institutions index measures equality of opportunity using the concept of agency. The key innovations are as follows: the inclusion of the institution of family and the gender division of unpaid domestic work as the basis for gender inequality of opportunities; horizontal segregation in labor markets and in education by calculating the average gap in the share of women and men with different educational profile; inclusion of an institute of science, including academia decision-making, inclusion of an institute of corporate governance (along with the state one). As a result, the index of axial institutions is visualized in the form of a hexagon, which describes the specifics of the model of gender equality in Russia.