In the Legend of Heroes universe, the world where the Zemuria Continent is located follows a different mathematical system compared to the real world. Below is the metric system with the following confirmed units of measurements.
- Rege (リジュ) is a fundamental unit of length in the Kiseki metric system (1 Rege = 0.01m (1cm))
- Arge (アージュ) is a fundamental unit of length in the Kiseki metric system (1 Arge = 1 meter)
- Selge (セルジュ) is a fundamental unit of length in the Kiseki metric system (1 Selge = 100 meters)
- Torim (トリム) is a fundamental unit of weight in the Kiseki metric system (1 Torim = 1000kg)