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Data

Average years of schooling

See all data and research on:
Human Development Index (HDI)

What you should know about this indicator

  • Formal education is primary/ISCED 1 or higher.
  • This indicator does not include years spent repeating grades.

UNDP relies on: Barro and Lee (2018), ICF Macro Demographic and Health Surveys (various years), OECD (2023), UNESCO Institute for Statistics (2023) and UNICEF Multiple Indicator Cluster Surveys (various years).

Average years of schooling
Average number of years adults over 25 years participated in formal education.
Source
UNDP, Human Development Report (2024) – with minor processing by Our World in Data
Last updated
April 9, 2024
Next expected update
April 2025
Date range
1990–2022
Unit
years

Explore charts that include this data

Average years of schooling vs. expected years of schooling

Sources and processing

This data is based on the following sources

The 2023/24 Human Development Report assesses the dangerous gridlock resulting from uneven development progress, intensifying inequality, and escalating political polarization, that we must urgently tackle. The report emphasizes how global interdependence is being reconfigured and proposes a path forward where multilateralism plays a pivotal role.

Additional resources related to the 2023/2024 Human Development Report can be found online at http://hdr.undp.org. Resources on the website include digital versions and translations of the Report and the overview in multiple languages, an interactive web version of the Report, a set of background papers and think pieces commissioned for the Report, interactive data visualizations and databases of human development indicators, full explanations of the sources and methodologies used in the Report’s composite indices, country insights and other background materials, and previous global, regional and national Human Development Reports. Corrections and addenda are also available online.

Technical notes (region definitions, reports, etc.) can be found at https://hdr.undp.org/sites/default/files/2023-24_HDR/hdr2023-24_technical_notes.pdf.

Retrieved on
April 9, 2024
Retrieved from
https://hdr.undp.org/
Citation
This is the citation of the original data obtained from the source, prior to any processing or adaptation by Our World in Data. To cite data downloaded from this page, please use the suggested citation given in Reuse This Work below.
UNDP (United Nations Development Programme). 2024. Human Development Report 2023-24: Breaking the gridlock: Reimagining cooperation in a polarized world. New York.

How we process data at Our World in Data

All data and visualizations on Our World in Data rely on data sourced from one or several original data providers. Preparing this original data involves several processing steps. Depending on the data, this can include standardizing country names and world region definitions, converting units, calculating derived indicators such as per capita measures, as well as adding or adapting metadata such as the name or the description given to an indicator.

At the link below you can find a detailed description of the structure of our data pipeline, including links to all the code used to prepare data across Our World in Data.

Read about our data pipeline
Notes on our processing step for this indicator

We calculated averages over continents and income groups by taking the population-weighted average of the countries in each group. If less than 80% of countries in an area report data for a given year, we do not calculate the average for that area.

Reuse this work

  • All data produced by third-party providers and made available by Our World in Data are subject to the license terms from the original providers. Our work would not be possible without the data providers we rely on, so we ask you to always cite them appropriately (see below). This is crucial to allow data providers to continue doing their work, enhancing, maintaining and updating valuable data.
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Citations

How to cite this page

To cite this page overall, including any descriptions, FAQs or explanations of the data authored by Our World in Data, please use the following citation:

“Data Page: Average years of schooling”, part of the following publication: Bastian Herre and Pablo Arriagada (2023) - “The Human Development Index and related indices: what they are and what we can learn from them”. Data adapted from UNDP, Human Development Report. Retrieved from https://ourworldindata.org/grapher/average-years-of-schooling [online resource]
How to cite this data

In-line citationIf you have limited space (e.g. in data visualizations), you can use this abbreviated in-line citation:

UNDP, Human Development Report (2024) – with minor processing by Our World in Data

Full citation

UNDP, Human Development Report (2024) – with minor processing by Our World in Data. “Average years of schooling” [dataset]. UNDP, Human Development Report, “Human Development Report 2023-2024” [original data]. Retrieved December 13, 2024 from https://ourworldindata.org/grapher/average-years-of-schooling