Cost of living in Naples (Italy) is 15% cheaper than in Aarhus (Denmark)
This comparison has some inconsistent or sparse data. It already provides a reliable comparison but it is not bullet-proof. It is based on 579 prices entered by 67 different people.
For example, to keep the same standard of living that would require kr31,000 in Aarhus you would need to make just about kr26,438 (€3,550) in Naples.