Cost of living in Marseille (France) is about the same as in Buffalo, New York (United States)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 343 prices entered by 45 different people.
For example, you would need at least $3,977 (€3,391) in Marseille to maintain the same standard of living that you can have with $3,900 in Buffalo, New York.