Guernsey is about 2,100 times smaller than Suriname.

Suriname is approximately 163,820 sq km, while Guernsey is approximately 78 sq km, making Guernsey 0.05% the size of Suriname. Meanwhile, the population of Suriname is ~632,638 people (565,147 fewer people live in Guernsey).
Tip: This to-scale comparison of Suriname vs. Guernsey uses the Mercator projection, which distorts the size of regions near the poles.