Cost of living in Huntsville, Alabama (United States) is 21% cheaper than in Aalborg (Denmark)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 265 prices entered by 28 different people.
For example, to keep the same standard of living that would require kr27,000 in Aalborg you would need to make just about kr21,385 ($3,261) in Huntsville, Alabama.