The short answer
One ECTS credit stands for 25 to 30 hours of work. The figure comes from the ECTS Users' Guide: a full-time academic year is worth 60 credits, and in most systems that year means 1,500 to 1,800 hours of work. Divide one by the other and you get 25–30 hours per credit.
So a course worth 5 credits asks for roughly 125 to 150 hours of your time – not just in the lecture hall, but in total.
Sources: [1]
What counts as work
The hours behind a credit are not class hours. They are the student's whole workload: everything a typical student needs to do to reach the learning outcomes of a course. The ECTS Users' Guide counts in, among others:
- lectures, seminars, classes and laboratory work,
- independent study and reading,
- projects, papers and preparing presentations,
- work placements,
- preparing for and taking exams.
The estimate is for a typical student. Some will need more time, some less – the credits stay the same.
Sources: [1]
A worked example
Take a course worth 5 credits, with 30 hours of classes in the timetable.
- 5 credits × 25–30 hours = 125–150 hours in total.
- Minus 30 hours of classes = about 95–120 hours of work outside class: reading, assignments and exam preparation.
This is why two courses with the same number of class hours can carry different credits: what decides is the total work, not the timetable.
Why a range, not one number
ECTS is a shared European measure, but academic years are not the same length everywhere. The guide therefore gives a range – 1,500 to 1,800 hours a year – and each country or institution sets its own value within it. A credit earned in Lisbon and one earned in Kraków stand for a comparable amount of work, even if the exact hour count differs slightly.
Sources: [1]
From a semester to a degree
A typical semester is 30 credits, a full-time year 60. Degrees are counted the same way. The overarching framework of qualifications for the EHEA gives typical ranges:
| Cycle | Typical credits |
|---|---|
| Short cycle | 90–120 |
| First cycle (bachelor) | 180–240 |
| Second cycle (master) | 90–120, at least 60 at second-cycle level |
| Third cycle (doctorate) | no common range |
In Poland
Polish law sets the minimum number of credits needed to graduate: 180 for first-cycle studies, 90 for second-cycle studies and 300 or 360 for long-cycle master's studies (Act on Higher Education and Science, Article 76). It also requires every study programme to state how many semesters it lasts and how many ECTS credits a student needs to complete it (regulation on studies, § 3(1)(1)). The regulation does not itself convert credits into hours – the conversion follows the ECTS rules above.
One Polish detail: first-cycle and long-cycle master's programmes include at least 60 hours of physical education, and these hours carry no ECTS credits (§ 3(2)).
Read more
Credits measure the volume of study, not how well a student did – grades do that. How credits travel between universities, and how grades are converted, is explained on the page ECTS credits.
Sources
- ECTS Users' Guide 2015
- Overarching Framework of Qualifications of the EHEA (2018), Paris Communiqué Appendix III
- Act of 20 July 2018 – Law on Higher Education and Science (Prawo o szkolnictwie wyższym i nauce), Dz.U. 2018 poz. 1668 as amended; ISAP, unified text as of 16 October 2026
- Dz.U. 2026 poz. 1207 – Consolidated text of the Polish regulation on studies (rozporządzenie w sprawie studiów)
Sources checked on 26 October 2026. Official documents are linked, not republished.