Country size comparison
compared to
Guatemala is about 2.8 times smaller than Oman.
Oman is approximately 309,500 sq km, while Guatemala is approximately 108,889 sq km, making Guatemala 35.18% the size of Oman. Meanwhile, the population of Oman is ~3.8 million people (13.9 million more people live in Guatemala).
Compare further: Guatemala vs. Oman