With a bit of smart financial management and little tweaks to your old lifestyle, the cost of living for international students in Germany is quite affordable. Normally, you would expect higher prices in urban areas as compared to peripheral ones. Rent is the major financial concern you will have to tackle when studying in Germany.
However, there are many options available to you and though the cost of rent varies (mainly depending on the location of the apartment), overall it is not that expensive. To ease your financial burden you can find someone with whom you can share the room and this will cut in half your expenses. The cost of other goods and services like food, amenities, public transport and so on is not high.