Fort Lauderdale is about 8 times smaller than Singapore.

Singapore is approximately 719 sq km, while Fort Lauderdale (excluding the city's 9.9 sq km of water area) is approximately 90 sq km, making Fort Lauderdale 12.51% the size of Singapore.
Tip: This to-scale comparison of Singapore vs. Fort Lauderdale uses the Mercator projection, which distorts the size of regions near the poles.