greenwich distance equator
Latitude and longitude are both measured in degrees. Each degree (Â°) is subdivided into 60 minutes (') and each minute into 60 seconds (). Each degree of latitude corresponds to a distance on the Earthâs surface of about 111 km.Each degree of longitude however, corresponds to a distance that varies with latitude. The distance is about 111 km at the Equator, reducing to 0 km at the Poles.henever the unqualified term latitude is used, it will normally mean the geographic latitude. On the WGS84 ellipsoid, the length of a degree of latitude increases from 110.574 km at the equator to 111.694 km at the poles.