Country size comparison
compared to
Senegal is about 1.9 times smaller than Japan.
Japan is approximately 377,915 sq km, while Senegal is approximately 196,722 sq km, making Senegal 52.05% the size of Japan. Meanwhile, the population of Japan is ~124.2 million people (106.3 million fewer people live in Senegal).
Compare further: Senegal vs. Japan