Hm, there were even different miles in every province.
"In Norway and Sweden, a mil is a unit of length which is equal to 10 kilometres and commonly used in everyday language. However in more formal situations, such as on road signs and when there is risk of confusion with English miles, kilometres are used instead. The traditional Swedish mil spanned the range from 6000-14,485 metres, depending on province. It was however standardized in 1649 to 36,000 Swedish feet, or 10.687 kilometers. The Norwegian mil was 11.298 kilometers. When the metric system was introduced in the Norwegian-Swedish union in 1889, it standardized the mil to exactly 10 kilometres."
Mile