Greece is approximately 131,957 sq km, while Indonesia is approximately 1,904,569 sq km, making Indonesia 1,343% larger than Greece. Meanwhile, the population of Greece is ~10.6 million people (256.4 million more people live in Indonesia).
This to-scale map shows a size comparison of Greece compared to Indonesia. For more details, see an in-depth quality of life comparison of Indonesia vs. Greece using our country comparison tool.