A calendar magnet is a calendar made from a magnetic material that can be attached to refrigerators, metal doors, or any metal surface. These magnets may include a calendar month or even the entire year's calendar.

Calendar magnets offer practical use due to their small size and are ideal for people who do not need a wall calendar to constantly check calendar dates. Additionally, as they are often placed on refrigerators, they can help remind you of important notes or appointments.

Calendar magnets are especially used in workplaces or offices to aid in work planning by constantly updating calendars and keeping the work calendar current. They can also be given as a personalized gift and used in various areas like home, office, or car.