What program can be used for windows to measure distances between settlements?

Question

Windows

Need a program for windows on the principle of google maps robots. You enter point A and point B and you write the distance between the points. You can even without laying the route and navigation. Just distance. What would work without access to the Internet (offline)
Thank you very much in advance)

Answer 1

find the database of cities and coordinates, I can make an application .. (for inexpensive)

Answer 2

api yandex.maps?

Answer 3

Use https://pypi.python.org/pypi/geopy
The coordinate base can be obtained from OpenStreetMap using the Overpass API.
If you need more coordinate accuracy (that is, the ability to select a more specific point, and not the centroid of the city territory) - download a project for QGIS from here gis-lab.info/qa/osm-qgis-projects.html and use it in QGIS (install from this package trac.osgeo.org/osgeo4w )
Actually, you can measure in QGIS docs.qgis.org/1.8/en/docs/user_manual/introduction... but there are subtleties with projections, and measure the distance across the whole country without errors can be a creative challenge.