Cost of living in Hamburg (Germany) is 51% more expensive than in Alicante (Spain)
This comparison has some inconsistent or sparse data. It already provides a reliable comparison but it is not bullet-proof. It is based on 834 prices entered by 117 different people.
For example, you would need at least €2,720 in Hamburg to maintain the same standard of living that you can have with €1,800 in Alicante.