California is about 4,488 times bigger than Fort Lauderdale.

Fort Lauderdale (excluding the city's 9.9 sq km of water area) is approximately 90 sq km, while California is approximately 403,882 sq km, making California 448,658% larger than Fort Lauderdale.
Tip: This to-scale comparison of Fort Lauderdale vs. California uses the Mercator projection, which distorts the size of regions near the poles.