Sierra Leone vs Sudan: Average years of schooling vs. expected years of schooling

Sierra Leone

3.54 years

in 2023

Sudan

3.96 years

in 2023

Sierra Leone rank

182nd

Sudan rank

179th

Average years of schooling vs. expected years of schooling over time

Sudan currently reports 3.96 years against 3.54 years in Sierra Leone, a difference of 0.4267 years.

That makes Sudan's figure about 1.1 times Sierra Leone's.

The two have swapped places 1 time across 34 shared years of data; in 1990 it was Sierra Leone ahead.

Sierra Leone ranks 182nd and Sudan ranks 179th of 192 countries.

Indicator: Average years of schooling vs. expected years of schooling
Unit: years
Source: UNDP, Human Development Report (2025) – with minor processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 192 places, 6,079 data points, 1990–2023
Last refreshed: 07 August 2026

Average number of years (excluding years spent repeating individual grades) adults over 25 years participated in formal education.