Arizona is about 515 times bigger than Isle of Man.

Isle of Man is approximately 572 sq km, while Arizona is approximately 294,312 sq km, making Arizona 51,353% larger than Isle of Man. Meanwhile, the population of Isle of Man is ~91,382 people (6.3 million more people live in Arizona).
Tip: This to-scale comparison of Isle of Man vs. Arizona uses the Mercator projection, which distorts the size of regions near the poles.