Cost of living in Haifa (Israel) is 19% more expensive than in Zaragoza (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 477 prices entered by 45 different people.
For example, you would need at least €3,688 (16,052 ₪) in Haifa to maintain the same standard of living that you can have with €3,100 in Zaragoza.