The numbers on the map correspond to each country’s Gender Inequality Index (GII), a figure derived from a number of factors, including the maternal mortality rate, the number of seats women ...

Arkansas, Louisiana, and Oklahoma have the worst gender equality of all U.S. states, with Massachusetts, California and Maine being the best.

"The Map will reveal real, everyday experiences of gender inequality that we may not always be aware of," Nicole Kalms, director of Monash University's XYX Lab, added in a statement.