Cost of living in Ottawa (Canada) is 14% 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 991 prices entered by 171 different people.
For example, you would need at least €2,846 (C$4,395) in Ottawa to maintain the same standard of living that you can have with €2,500 in Zaragoza.