How many years of comparable data are there for Finland and Iran, Islamic Republic of?

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.

Finland vs Iran, Islamic Republic of: Secondary education, duration

Finland

6 years

in 2025

Iran, Islamic Republic of

6 years

in 2025

Finland rank

91st

Iran, Islamic Republic of rank

91st

Secondary education, duration over time

Finland
Iran, Islamic Republic of

How they compare

Finland currently reports 6 years against 6 years in Iran, Islamic Republic of, a difference of 0 years.

Across all 56 years both countries report, Iran, Islamic Republic of has been ahead every year.

Finland ranks 91st and Iran, Islamic Republic of ranks 91st of 209 countries.

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

Head to head by decade

Decade	Finland	Iran, Islamic Republic of	Difference	Ahead
1970s	6 years	6.2 years	0.2 years	Iran, Islamic Republic of
1980s	6 years	7 years	1 years	Iran, Islamic Republic of
1990s	6 years	7 years	1 years	Iran, Islamic Republic of
2000s	6 years	7 years	1 years	Iran, Islamic Republic of
2010s	6 years	6.3 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, Finland or Iran, Islamic Republic of?: Finland, at 6 years against 6 years in Iran, Islamic Republic of as of 2025.
What is the difference in secondary education, duration between Finland and Iran, Islamic Republic of?: 0 years, with Finland ahead.
How many years of comparable data are there for Finland and Iran, Islamic Republic of?: 56 years are reported by both, from 1970 to 2025.
How do Finland and Iran, Islamic Republic of rank globally for secondary education, duration?: Finland ranks 91st and Iran, Islamic Republic of ranks 91st of 209 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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Finland vs Iran, Islamic Republic of: Secondary education, duration. Statizoid, drawing on Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 18 August 2026, from https://education.statizoid.com/compare/secondary-education-duration-years/finland/iran-islamic-rep/

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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: 06 August 2026

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