Fertility in Belgium, 2045
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2045
Total fertility rate: 1.47
The total fertility rate of Belgium is projected at 1.47 children per woman in 2045 — below the replacement level of about 2.1. Births are projected to be most frequent among women aged 30-34 (112 per 1,000 women in that age group), and the average mother would be 31.5 years old. In total, 108,243 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).
Key indicators, 2045
Total fertility rate
1.47
Births
108,243
Births per 1,000 people
9.1
Mean age of mothers
31.5
Births to mothers aged 15–19
0.8%
Net reproduction rate
0.72
Boys per 100 girls at birth
105.2
Population
11,900,984
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, 2045
| Mother's age | Births per 1,000 women | Share of total fertility | Births |
|---|---|---|---|
| 10-14 | 0.0 | 0.0% | 8 |
| 15-19 | 3.1 | 1.1% | 828 |
| 20-24 | 25.4 | 8.6% | 7,950 |
| 25-29 | 85.3 | 28.8% | 30,705 |
| 30-34 | 112.3 | 37.9% | 42,707 |
| 35-39 | 54.9 | 18.5% | 20,810 |
| 40-44 | 13.8 | 4.6% | 4,657 |
| 45-49 | 1.7 | 0.6% | 564 |
| 50-54 | 0.0 | 0.0% | 14 |
Fertility in Belgium by year