How many scales are there on a compass?

A compass typically features two main scales. These are the degrees scale, which ranges from 0 to 360, allowing for precise navigation and orientation in terms of direction, and the mils scale, which is often used in military applications for more precise angular measurements. The degrees scale is used to indicate cardinal and intercardinal directions, while the mil scale is often advantageous in tactical situations where a higher degree of precision is necessary.

While there could be additional markings or scales for specific uses on some compasses, such as declination or conversion scales for distance, the fundamental design is based on the primary two scales. Having these two distinct scales allows users to easily navigate and communicate directions effectively across different applications. Therefore, understanding the dual scales and their purposes enhances a user's navigational proficiency.