Denmark vs Iran: Theoretical duration of upper secondary education
Denmark
3 years
in 2025
Iran
3 years
in 2025
Denmark rank
52nd
Iran rank
52nd
Theoretical duration of upper secondary education over time
- Denmark
- Iran
How they compare
Denmark currently reports 3 years against 3 years in Iran, a difference of 0 years.
Across all 56 years both countries report, Iran has been ahead every year.
Denmark ranks 52nd and Iran ranks 52nd of 215 countries.
Iran has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Denmark | Iran | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 3 years | 3.2 years | 0.2 years | Iran |
| 1980s | 3 years | 4 years | 1 years | Iran |
| 1990s | 3 years | 4 years | 1 years | Iran |
| 2000s | 3 years | 4 years | 1 years | Iran |
| 2010s | 3 years | 3.6 years | 0.6 years | Iran |
| 2020s | 3 years | 3 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of upper secondary education, Denmark or Iran?
- Denmark, at 3 years against 3 years in Iran as of 2025.
- What is the difference in theoretical duration of upper secondary education between Denmark and Iran?
- 0 years, with Denmark ahead.
- How many years of comparable data are there for Denmark and Iran?
- 56 years are reported by both, from 1970 to 2025.
- How do Denmark and Iran rank globally for theoretical duration of upper secondary education?
- Denmark ranks 52nd and Iran ranks 52nd of 215 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Theoretical duration of upper secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
February 2026 Data Release