Fertility in World, 2021

World
2021
Total fertility rate: 2.29
Births per 1,000 women, by age of mother
2021 1991, 30 years earlier
Hover a column for the exact rate. Adding up all the rates (× 5 years ÷ 1,000) gives the total fertility rate.
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   2021  +1 +5

Country

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

The total fertility rate of World was 2.29 children per woman in 2021 — above the replacement level of about 2.1. Births were most frequent among women aged 25-29 (130 per 1,000 women in that age group), and the average mother was 28.2 years old. In total, 133,448,839 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
2.29
Births
133,448,839
Births per 1,000 people
16.8
Mean age of mothers
28.2
Births to mothers aged 15–19
9.1%
Net reproduction rate
1.05
Boys per 100 girls at birth
105.7
Population
7,954,448,392
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.
Mother's ageBirths per 1,000 womenShare of total fertilityBirths
10-141.10.2%356,592
15-1939.78.7%12,111,168
20-24117.625.7%34,723,264
25-29130.228.4%37,954,036
30-3495.720.9%28,504,703
35-3952.611.5%14,508,452
40-4418.13.9%4,470,545
45-493.30.7%772,923
50-540.20.0%47,163