Oklahoma is about 44 times bigger than Cabo Verde.

Cabo Verde is approximately 4,033 sq km, while Oklahoma is approximately 177,847 sq km, making Oklahoma 4,310% larger than Cabo Verde. Meanwhile, the population of Cabo Verde is ~596,707 people (3.2 million more people live in Oklahoma).
Tip: This to-scale comparison of Cabo Verde vs. Oklahoma uses the Mercator projection, which distorts the size of regions near the poles.