Cost of living in Jena (Germany) is about the same as in Aguadilla (Puerto Rico)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 100 prices entered by 25 different people.
For example, to keep the same standard of living that would require $3,000 in Aguadilla you would need to make just about $2,940 (€2,540) in Jena.