List of Countries by Sex ratio

The human sex ratio is the number of males for every 100 females in a population. A sex ratio above 100 means there are more males than females. A sex ratio below 100 means there are more females than males. A sex ratio of 100 means there are equal numbers of females and males.

Qatar has the highest sex ratio, with 246 males per 100 females, followed by the United Arab Emirates, having 176 men per 100 females, and Oman (166). The top three and Bahrain, Maldives, Kuwait, and Saudi Arabia have male-to-female ratios above 150. The top seven countries having the highest males/females belong to Asia.

As of 2025, Hong Kong has the lowest gender ratio of 81.84, followed by Guadeloupe (82.43). Martinique, the Republic of Moldova, and Macao are in the 3rd, 4th, and 5th positions, respectively. In the list of top 10 countries having the highest female-to-male ratio, four countries are located in Europe and three each in North America and Asia.

Out of 237 countries/regions estimated by the United Nations, 160 have more females than males. Eighteen countries have a male ratio of less than 90, and 58 have less than 95.

The sex ratio at birth in every country is male-biased, ranging from around 101 to 116 boys per 100 girls. Four nations have a sex ratio above or equal to 1.10 at birth, as Liechtenstein has the highest male ratio with 116 male births per 100 female births.

For the group aged below 15, Montserrat has the highest female ratio, with almost 90 males per 100 females. Due to the higher life expectancy of women, the men-to-women ratio is very low for ages over 65 years. Men outnumber women in only 13 countries/territories above 65.