The total fertility rate of Less developed regions, excluding China is projected at 2.57 children per woman in 2027 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (145 per 1,000 women in that age group), and the average mother would be 28.2 years old. In total, 112,664,187 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2027

Total fertility rate

2.57

Births

112,664,187

Births per 1,000 people

20.0

Mean age of mothers

28.2

Births to mothers aged 15–19

10.1%

Net reproduction rate

1.18

Boys per 100 girls at birth

104.9

Population

5,639,892,059

The net reproduction rate counts only daughters who survive to their mothers' age: below 1, each generation of women is smaller than the one before.

Fertility by age of mother, 2027

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	1.2	0.2%	304,045
15-19	45.6	8.9%	11,343,148
20-24	132.3	25.7%	30,934,358
25-29	144.7	28.1%	32,016,635
30-34	106.0	20.6%	22,107,879
35-39	58.4	11.4%	11,413,994
40-44	21.5	4.2%	3,867,386
45-49	4.1	0.8%	641,219
50-54	0.3	0.1%	35,480

Fertility in Less developed regions, excluding China by year

Fertility in Less developed regions, excluding China, 2027

Year

Country