Maps

Geo Map Server is a free editable map of the whole world. It is made by people. Geo Map Server allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth. This site provides free access to CEBITCO geographic map data through on-line map viewers and through GIS web map server (WMS) connections. - Website Details

There is a large number of distance calculators available online nowadays that promise to make this task quite easy and fast, as well as effective - Website Details