Academic grading in Croatia is regulated by the Ministry of Science, Education and Sports.

In Croatia the following official grade scale applies to elementary school, high school and university students:

1 (nedovoljan) is a failing grade, while grades 2 through 5 are passing grades.

Many teachers use minus and plus symbols as grade modifiers. For example, "−5" denotes a grade slightly lower than "excellent", while "+4" denotes a grade slightly higher than "very good". Half-grades such as "4/5" are also used. These modifiers are unofficial and do not appear in final grade reports.

Conduct (vladanje) is graded on a 3-point descriptive scale:

• Poor (loše)
• Good (dobro)
• Exemplary (uzorno)

In practice, most students receive "exemplary" conduct grades. Conduct grade does not count towards the grade point average.

Grade point average is calculated as the arithmetic mean of all numerical grades:

• 1.00–1.99 Insufficient
• 2.00–2.49 Sufficient
• 2.50–3.49 Good
• 3.50–4.49 Very good
• 4.50–5.00 Excellent

A significant grade inflation has been observed in primary education and, to a lesser degree, in secondary education. In the 2008/09 school year, almost 168,000 out of 365,000 elementary school students were graded "excellent" by their grade point average. Parent pressure on teachers has been identified as a major cause.^[1]