The aerial distance between two cities can be calculated by using the Pythagorean theorem. This states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the other two sides.

Google will now let you fly as the crow does. According to The Atlantic City Lab: “Google Maps this week has updated with a fresh tool. Users can right-click on any location on a map, select 'measure distance,' click on another location, and see a line displaying the exact mileage between the two points.

Using Maps URLs, you can build a universal, cross-platform URL to launch Google Maps and perform searches, get directions and navigation, and display map views and panoramic images. The URL syntax is the same regardless of the platform in use. You don't need a Google API key to use Maps URLs.