Spain is approximately 505,370 sq km, while Malta is approximately 316 sq km, making Malta 0.06% the size of Spain. Meanwhile, the population of Spain is ~50.0 million people (49.6 million fewer people live in Malta).
This to-scale map shows a size comparison of Spain compared to Malta. For more details, see an in-depth quality of life comparison of Malta vs. Spain using our country comparison tool.