Google today released a information in Google Earth that allows you to measure the distance between two locations or the square footage of an area.
This new feature is already on Chrome, expected on Android later this week, and on iOS in the near future.
To use this new feature you need to click on the icon that looks like a measuring tool (bottom left in the left sidebar). You will automatically have a new function where you can perform a variety of measurements.
For example and as you will see in essay us, you can determine the length of a straight path. In our example, as you can see, the distance between Athens and Thessaloniki is 303,18 kilometers, and if someone decides to change his mind and go back down to Ancient Olympia from Thessaloniki, he will have to travel 655.46 kilometers.
You can also use the tool to calculate the square footage of an area. To do this, just close the perimeter of an area and Google Earth will automatically calculate its perimeter and area.
The tool may not have the accuracy of topographic plan but it is ideal for sampling measurements of fields, plots, etc. Relevant instructions can be read from Google help here.