Brunei vs Sierra Leone: Duration of pre-primary education
Brunei
3 years
in 2025
Sierra Leone
3 years
in 2025
Brunei rank
27th
Sierra Leone rank
27th
Duration of pre-primary education over time
- Brunei
- Sierra Leone
How they compare
Brunei currently reports 3 years against 3 years in Sierra Leone, a difference of 0 years.
The two have swapped places 1 time across 56 shared years of data; in 1970 it was Brunei ahead.
Brunei ranks 27th and Sierra Leone ranks 27th of 223 countries.
Brunei has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Brunei | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 3 years | 2 years | 1 years | Brunei |
| 1980s | 3 years | 2 years | 1 years | Brunei |
| 1990s | 3 years | 2.2 years | 0.8 years | Brunei |
| 2000s | 3 years | 3 years | 0 years | — |
| 2010s | 3 years | 3 years | 0 years | — |
| 2020s | 3 years | 3 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher duration of pre-primary education, Brunei or Sierra Leone?
- Brunei, at 3 years against 3 years in Sierra Leone as of 2025.
- What is the difference in duration of pre-primary education between Brunei and Sierra Leone?
- 0 years, with Brunei ahead.
- How many years of comparable data are there for Brunei and Sierra Leone?
- 56 years are reported by both, from 1970 to 2025.
- How do Brunei and Sierra Leone rank globally for duration of pre-primary education?
- Brunei ranks 27th and Sierra Leone ranks 27th of 223 countries.
- Where does this data come from?
- UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data, published as Duration of pre-primary education. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Average number of years that a child is expected to spend in pre-primary education, defined by country's official educational regulations or laws.