Guinea-Bissau vs Sierra Leone: Average years of schooling vs. expected years of schooling

Guinea-Bissau

3.67 years

in 2023

Sierra Leone

3.54 years

in 2023

Guinea-Bissau rank

181st

Sierra Leone rank

182nd

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

Guinea-Bissau currently reports 3.67 years against 3.54 years in Sierra Leone, a difference of 0.1377 years.

The two have swapped places 1 time across 19 shared years of data; in 2005 it was Sierra Leone ahead.

Guinea-Bissau ranks 181st and Sierra Leone ranks 182nd 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.