Cost of living in Cleveland, Ohio (United States) is 16% more expensive than in Arezzo (Italy)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 421 prices entered by 74 different people.
For example, you would need at least €3,126 ($3,555) in Cleveland, Ohio to maintain the same standard of living that you can have with €2,700 in Arezzo.