kümnendkraadide
The term kümnendkraadid, whose literal translation is “tenth degrees,” refers to a set of geographic coordinate units that represent one‑tenth of a degree of latitude or longitude. In the context of Estonian cartography and navigation, this unit has historically been used as an intermediate level of precision between whole degrees and the finer subdivisions of minutes and seconds. One kümnendkraad equals 0.1 degree, which at the equator corresponds to roughly 11.1 kilometres in linear distance and about 1.1 km in the north‑south direction when accounting for the Earth’s curvature.
The practice of expressing coordinates in kümnendkraadid dates back to early 20th‑century Estonian mapping projects, when
Because of its straightforward decimal nature, the kümnendkraad unit remains a useful educational tool in Estonian