Iran, Islamic Republic of vs Singapore: Theoretical duration of lower secondary education

Iran, Islamic Republic of
2 years
in 2020
Singapore
2 years
in 2020
Iran, Islamic Republic of rank
188th
Singapore rank
188th

Theoretical duration of lower secondary education over time

  • Iran, Islamic Republic of
  • Singapore
01234197019952020

How they compare

Iran, Islamic Republic of currently reports 2 years against 2 years in Singapore, a difference of 0 years.

The two have swapped places 4 times across 51 shared years of data; in 1970 it was Singapore ahead.

Iran, Islamic Republic of ranks 188th and Singapore ranks 188th of 209 countries.

Across the 6 decades both report, Iran, Islamic Republic of averaged higher in 2 and Singapore in 3.

Head to head by decade

Decade Iran, Islamic Republic of Singapore Difference Ahead
1970s 3 years 4 years 1 years Singapore
1980s 3 years 4 years 1 years Singapore
1990s 3 years 3.4 years 0.4 years Singapore
2000s 3 years 2 years 1 years Iran, Islamic Republic of
2010s 2.7 years 2 years 0.7 years Iran, Islamic Republic of
2020s 2 years 2 years 0 years

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of lower secondary education, Iran, Islamic Republic of or Singapore?
Iran, Islamic Republic of, at 2 years against 2 years in Singapore as of 2020.
What is the difference in theoretical duration of lower secondary education between Iran, Islamic Republic of and Singapore?
0 years, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Singapore?
51 years are reported by both, from 1970 to 2020.
How do Iran, Islamic Republic of and Singapore rank globally for theoretical duration of lower secondary education?
Iran, Islamic Republic of ranks 188th and Singapore ranks 188th of 209 countries.
Where does this data come from?
UNESCO Institute for Statistics, published as Theoretical duration of lower secondary education (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 Singapore: Theoretical duration of lower secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 03 September 2026, from https://education.statizoid.com/compare/theoretical-duration-of-lower-secondary-education-years/iran-islamic-rep/singapore/

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About this data

Indicator
Theoretical duration of lower secondary education (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
209 places, 10,366 data points, 1970–2020
Last refreshed

Number of grades (years) in lower secondary education.