Cost of living in Harrisburg, Pennsylvania (United States) is 47% more expensive than in Almería (Spain)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 408 prices entered by 28 different people.
For example, you would need at least €2,788 ($3,279) in Harrisburg, Pennsylvania to maintain the same standard of living that you can have with €1,900 in Almería.