While there are some ‘single subject’ courses where the entire syllabus is planned in advance, the majority of degrees allow for a student to choose modules as they go. This not only allows for flexibility of studies, it also means students can choose how much time they spend studying. It is very common for students to juggle a full-time job while studying or take a few months off to work during their degree. You can also select to just study individual courses with no intention of completing a full degree.It is thus very variable how long a degree takes because a three year full-time course often becomes spread out over six years.
Each study module counts for a certain number of credits (normally based on teaching hours) – a one term full-time course would be the equivalent of 20 credits. This assumes you study 40 hours a week. When you have studied (and passed – see below) courses worth 80 credits, you are eligible for your University diploma (högskoleexamen). After 120 points (three years study – there are two terms per year), you are eligible for your Bachelors degree although there are some caveats about how many of these credits must be related to your main field of study.
Since each institution varies in the courses they offer and the flexibility allowed, contact each directly for more information.
At undergraduate level, a degree is equivalent from any of the higher education institutions (although, as in any country, some universities are harder to get into than others so there is an unofficial ranking). Your decision should mainly be based on the structure and content of the course and how well regarded that faculty is. There may be some benefit from studying in a University that conducts extensive research in addition to its undergraduate teaching commitments. However, there can be big divides between teaching and research faculty even within one institution so be careful not to make assumptions.