Cost of living in Detroit, Michigan (United States) is 20% 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 853 prices entered by 120 different people.
For example, you would need at least €2,282 ($2,681) in Detroit, Michigan to maintain the same standard of living that you can have with €1,900 in Alicante.