Computing distance using lat/long coordinates

Fill in the latitude and longitude of two geographic locations and compute the distance between the points. The distance returned is the arc length of a great circle connecting the two points, essentially air miles. (Details)

Latitude °North Longitude °East
First location:
Second location:

Distance ...

Note that latitude and longitude are in degrees. Latitude is in degrees north of the equator; southern latitudes are negative degrees north. Longitude is in degrees east of the prime meridian; degrees west are negative degrees east.

Determine your latitude and longitude based on your IP address.

In the US, you can look up the coordinates of a geographical location using Microsoft's TerraServer.