The nautical mile is used by default on Virtual Regatta Offshore. It is the measuring unit used in nautical navigation, and is equal to 1 852 meters.
If you want to use the metric system, you can! You can switch between Miles and Kilometers from the game settings:
- On the main screen, press the Settings button in the top right corner of the screen.
- Choose the Settings tab.
- Select the preset you want to use.