Oklahoma is about 3,269 times bigger than Saint Martin.

Saint Martin is approximately 54 sq km, while Oklahoma is approximately 177,847 sq km, making Oklahoma 326,825% larger than Saint Martin. Meanwhile, the population of Saint Martin is ~32,792 people (3.7 million more people live in Oklahoma).
Tip: This to-scale comparison of Saint Martin vs. Oklahoma uses the Mercator projection, which distorts the size of regions near the poles.