Adult Literacy Rate
Percentage of population ages 15 and above who can read and write a short simple statement about their everyday life.
Quick Reference
Unit
%
Category
Education
Metric Code
adult_literacy_rate
How It's Calculated
Number of literate persons aged 15 years and above, divided by the total population in that age group, multiplied by 100. Literacy is defined by UNESCO as the ability to read and write, with understanding, a short simple statement related to one's daily life. Measured through census questions, household surveys (DHS, MICS), or literacy assessments. Does not measure functional literacy or numeracy.
Why It Matters
Literacy is a fundamental human right and foundation for lifelong learning, economic participation, and civic engagement. Adult literacy rates reflect historical education access and quality. Low literacy perpetuates poverty, limits health outcomes (inability to read medicine labels, health information), and constrains economic development. It is SDG Target 4.6, aiming for universal youth and adult literacy by 2030.
Understanding the Values
Very Low: < 50% (crisis - Niger 37%, Mali 38%, Chad 40%) Low: 50-75% (major gaps - sub-Saharan Africa average ~65%) Moderate: 75-90% (progress made - South Asia ~74%) High: 90-98% (near-universal - most middle-income countries) Universal: > 98% (SDG achieved - OECD countries ~99%) SDG Target 4.6: Universal youth and adult literacy by 2030 Global average: 87% adults (88% in 2024), 93% youth (2024) Gender gap: Women's literacy lags men's by 7% globally, 20%+ in some countries
Related Metrics
Government Expenditure on Education (% of GDP)
Total government spending on education as percentage of gross domestic product, measuring national investment in education systems.
Primary School Enrollment Rate
Gross enrollment ratio for primary education, measuring total enrollment as percentage of primary school-age population.
Secondary School Enrollment Rate
Gross enrollment ratio for secondary education, measuring total enrollment as percentage of secondary school-age population.
Tertiary School Enrollment Rate
Gross enrollment ratio for tertiary education, measuring total enrollment as percentage of the 5-year age group following secondary education.
Data Quality & Coverage
Coverage: ~170 countries Update frequency: Irregular (census-based, every 5-10 years) Source: World Bank / UNESCO UIS Limitations: Self-reported literacy often overestimates actual ability. UNESCO definition is minimal - does not measure functional literacy (comprehension, critical thinking) or digital literacy. Adult literacy programs can improve rates but are underfunded. Conflict, displacement, and migration disrupt literacy data collection. Does not capture quality of literacy or reading culture.