At many German universities, the following rule of thumb applies: achelor’s theses are 40 to 60 pages long, and Master’s theses are around 80 to 120 pages. Some universities also specify the expected scope in words, which is then between 15,000 and 20,000 words.
Still others only specify the processing time, but do not express any limitation in terms of the number of pages or words. Depending on whether you are writing your Master’s thesis in three or six months, you can use the following rules of thumb as a guide: 3 months processing time = 60-80 pages, 6 months processing time = 80-120 pages