The websites FreeMapTools.com, MapDevelopers.com and Altitude.nu each feature free tools that allow users to find the altitude of any point on Earth. Users can search using a variety of criteria, such as city name or street address.
Once a user inputs the data for a particular place, the elevation appears in feet or meters along with the site's longitude and latitude and a map of the surrounding area. The user can zoom in or out to learn more about the locale in question. These tools can give elevation data about a single site or a collection of sites, depending on user preferences.