What is the difference in secondary education, duration between Iran (Islamic Republic of) and Saudi Arabia?

0 years, with Iran (Islamic Republic of) ahead.

How many years of comparable data are there for Iran (Islamic Republic of) and Saudi Arabia?

56 years are reported by both, from 1970 to 2025.

Where does this data come from?

Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Secondary education, duration (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran (Islamic Republic of) vs Saudi Arabia: Secondary education, duration

Iran (Islamic Republic of)

6 years

in 2025

Saudi Arabia

6 years

in 2025

Iran (Islamic Republic of) rank

91st

Saudi Arabia rank

91st

Secondary education, duration over time

Iran (Islamic Republic of)
Saudi Arabia

How they compare

Iran (Islamic Republic of) currently reports 6 years against 6 years in Saudi Arabia, a difference of 0 years.

The two have swapped places 2 times across 56 shared years of data; in 1970 it was Saudi Arabia ahead.

Iran (Islamic Republic of) ranks 91st and Saudi Arabia ranks 91st of 210 countries.

Iran (Islamic Republic of) has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	Iran (Islamic Republic of)	Saudi Arabia	Difference	Ahead
1970s	6.2 years	6 years	0.2 years	Iran (Islamic Republic of)
1980s	7 years	6 years	1 years	Iran (Islamic Republic of)
1990s	7 years	6 years	1 years	Iran (Islamic Republic of)
2000s	7 years	6 years	1 years	Iran (Islamic Republic of)
2010s	6.3 years	6 years	0.3 years	Iran (Islamic Republic of)
2020s	6 years	6 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher secondary education, duration, Iran (Islamic Republic of) or Saudi Arabia?: Iran (Islamic Republic of), at 6 years against 6 years in Saudi Arabia as of 2025.
What is the difference in secondary education, duration between Iran (Islamic Republic of) and Saudi Arabia?: 0 years, with Iran (Islamic Republic of) ahead.
How many years of comparable data are there for Iran (Islamic Republic of) and Saudi Arabia?: 56 years are reported by both, from 1970 to 2025.
How do Iran (Islamic Republic of) and Saudi Arabia rank globally for secondary education, duration?: Iran (Islamic Republic of) ranks 91st and Saudi Arabia ranks 91st of 210 countries.
Where does this data come from?: Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Secondary education, duration (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran (Islamic Republic of) vs Saudi Arabia: Secondary education, duration. Statizoid, drawing on Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 20 August 2026, from https://education.statizoid.com/compare/secondary-education-duration-years/iran-islamic-rep/saudi-arabia/

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About this data

Indicator: Secondary education, duration (years)
Unit: years
Source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 255 places, 13,986 data points, 1970–2025
Last refreshed: 20 August 2026

Secondary duration refers to the number of grades (years) in secondary school.