Las Vegas is 69% larger than Baton Rouge, Louisiana.
Area: 214 km2 calculated
Baton Rouge, French for "Red Stick," is the capital of the U.S. state of Louisiana and its second-largest city. The seat of East Baton Rouge Parish, the city is located on the banks of the Mississippi River. Wikipedia
Area: 363 km2 calculated
Las Vegas, officially the City of Las Vegas and often known as simply Vegas, is the most populous city in the state of Nevada and the county seat of Clark County. Wikipedia