This tool calculates the straight line distance between two pairs of latitude/longitude points provide in decimal degrees. Additionally, this tool will convert your decimal coordinates to degrees minutes seconds (DMS).
Note: Positive latitude values (1 to 90) represent locations in the northern hemisphere (north of the equator), whereas negative latitude values (1- to -90) are locations in the southern hemisphere (south of the equator).
Positive longitude values (1 to 180) are locations in the eastern hemisphere (east of prime meridian ), whereas negative values (-1 to -180) are locations in the western hemisphere (west of prime meridian ).
See hemisphere map from Encyclopedia Britannica for an illustration.