How many years of comparable data are there for Bulgaria and Romania?

6 years are reported by both, from 2006 to 2022.

Where does this data come from?

OECD (2023) – with minor processing by Our World in Data, published as Average performance of 15-year-old students in mathematics. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Bulgaria vs Romania: Average performance of 15-year-old students in mathematics

Bulgaria

417.3 score

in 2022

Romania

427.76 score

in 2022

Bulgaria rank

43rd

Romania rank

41st

Average performance of 15-year-old students in mathematics over time

Bulgaria
Romania

How they compare

Romania currently reports 427.76 score against 417.3 score in Bulgaria, a difference of 10.46 score.

The two have swapped places 4 times across 6 shared years of data; in 2006 it was Romania ahead.

Bulgaria ranks 43rd and Romania ranks 41st of 57 countries.

Romania has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Bulgaria	Romania	Difference	Ahead
2000s	420.76 score	420.94 score	0.18 score	Romania
2010s	438.66 score	439.47 score	0.8187 score	Romania
2020s	417.3 score	427.76 score	10.46 score	Romania

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average performance of 15-year-old students in mathematics, Bulgaria or Romania?: Romania, at 427.76 score against 417.3 score in Bulgaria as of 2022.
What is the difference in average performance of 15-year-old students in mathematics between Bulgaria and Romania?: 10.46 score, with Romania ahead.
How many years of comparable data are there for Bulgaria and Romania?: 6 years are reported by both, from 2006 to 2022.
How do Bulgaria and Romania rank globally for average performance of 15-year-old students in mathematics?: Bulgaria ranks 43rd and Romania ranks 41st of 57 countries.
Where does this data come from?: OECD (2023) – with minor processing by Our World in Data, published as Average performance of 15-year-old students in mathematics. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Bulgaria vs Romania: Average performance of 15-year-old students in mathematics. Statizoid, drawing on OECD (2023) – with minor processing by Our World in Data. Retrieved 24 September 2026, from https://reference.statizoid.com/compare/academic-performance/bulgaria/romania/

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About this data

Indicator: Average performance of 15-year-old students in mathematics
Unit: score
Source: OECD (2023) – with minor processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 57 places, 373 data points, 2003–2022
Last refreshed: 18 September 2026

Assessed through the PISA mathematics scale, which measures how well someone can use math to solve everyday problems and understand the role of math in the real world.