Cost of living in Barcelona (Spain) is 82% more expensive than in Zenica (Bosnia and Herzegovina)
This comparison has some inconsistent or sparse data. It already provides a reliable comparison but it is not bullet-proof. It is based on 2,570 prices entered by 423 different people.
For example, you would need at least 3,091KM (€1,684) in Barcelona to maintain the same standard of living that you can have with 1,700KM in Zenica.