How Bulgaria performs in international assessments. These are national averages — individual schools may vary significantly.
| Assessment | Year | Score | Rank |
|---|---|---|---|
| PIRLS Reading (Grade 4) | 2021 | 540 | 14 / 56 |
| TIMSS Mathematics (Grade 4) | 2019 | 515 | 26 / 58 |
| TIMSS Science (Grade 4) | 2019 | 521 | 24 / 57 |