If you read the books or watched the movies, you get the sense that Frodo and Sam walked pretty far to toss that ring in the fire. Imgur user mattsawizard compared the journey distance with some rough real-life geography. The journey was 1,350 miles, which is kind of like walking from Los Angeles, California to Austin, Texas.
Or, from a European point of view, it’d be like a trip from London, England to Niš, Serbia.