How Does the Ratio of Men to Women Impact the Global Population? We weren’t able to create a summary for you. Refresh your page to try again. The human sex ratio is the ratio of males to females in a population in the context of anthropology and demography. In humans, the natural sex ratio at birth is slightly biased towards the male sex. The ratio between the male and femalepopulation size is called the gender ratio. This ratio is not stable — it is shaped by biological, social, technological, cultural, and economic forces. In turn, the gender ratio has an impact on society, demography, and the economy. Apr 28, 2025 · The population sex ratio is usually expressed as the number of males per 100 females. At a global level the distribution is close to balance, but the map becomes much more uneven once you look at specific countries, age groups, and places with intense migration or large differences in longevity. Jun 21, 2025 · Globally, there are approximately 101.7 men for every 100 women. This slight global imbalance, however, masks significant regional variations influenced by a complex interplay of factors from biological realities to societal preferences and cultural practices. Aug 31, 2022 · But by 2050, the worldwide sex ratio is expected to even out, according to recently released population projections from the United Nations. As of 2021, there were about 44 million more males than females in the globalpopulation. Skewed levels of the sex ratio at birth (SRB) due to sex-selective abortions have been observed in several countries since the 1970s.