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Iran, Islamic Republic of vs Tanzania, United Republic of: Secondary education, duration

Iran, Islamic Republic of
6 years
in 2025
Tanzania, United Republic of
6 years
in 2025
Iran, Islamic Republic of rank
91st
Tanzania, United Republic of rank
91st

Secondary education, duration over time

  • Iran, Islamic Republic of
  • Tanzania, United Republic of
02468197019972025

How they compare

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

The two have swapped places 2 times across 56 shared years of data; in 1970 it was Tanzania, United Republic of ahead.

Iran, Islamic Republic of ranks 91st and Tanzania, United 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 Iran, Islamic Republic of Tanzania, United Republic of 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 Tanzania, United Republic of?
Iran, Islamic Republic of, at 6 years against 6 years in Tanzania, United Republic of as of 2025.
What is the difference in secondary education, duration between Iran, Islamic Republic of and Tanzania, United Republic of?
0 years, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Tanzania, United Republic of?
56 years are reported by both, from 1970 to 2025.
How do Iran, Islamic Republic of and Tanzania, United Republic of rank globally for secondary education, duration?
Iran, Islamic Republic of ranks 91st and Tanzania, United 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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Iran, Islamic Republic of vs Tanzania, United Republic of: Secondary education, duration. Statizoid, drawing on Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 19 August 2026, from https://education.statizoid.com/compare/secondary-education-duration-years/iran-islamic-rep/tanzania/

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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

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