I would like to apologize in advance if this comes off as laziness or a poor attempt at trying to get someone to do my work for me. That is not my intention.
I am trying to figure out how big this continent is. Most fantasy writers don't give official sizes to their fictional continents but I want too simply because geopolitics play a major role in the main story and the articles I have written on the individual nations of Diggoran are structured like Wikipedia articles which give detail on virtually every important component of a nation including its size.
I tried to figure out the size of the continent by attempting to use one of the nations as a reference point. I chose to use the large nation in the west with the 2 peninsulas extending from it's far west and south sides. This nation is comparable to the size of the Contiguous United States of America which is 3.119 Million square miles. I did a guesstimation of Diggoran's size which turned out something over 15 Million square miles but no real math was involved in that process.
I asked if there were any good tools for this project on Reddit. Someone told me to use a ''pixel counter'' but they never elaborated upon what exactly that was.
Also, just a warning. I do have learning disabilities so some recommendations or obvious solutions may have been beyond my personal cognitive ability unless hands-on help was previously provided in some way.
Video tutorials would also be an excellent help.