Cost of living in Halifax (Canada) is 26% more expensive than in Alicante (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 894 prices entered by 99 different people.
For example, you would need at least €2,653 (C$4,062) in Halifax to maintain the same standard of living that you can have with €2,100 in Alicante.