Virginia Beach, Virginia is 5.4 times larger than San Francisco.
Area: 122 km2 calculated
San Francisco, officially the City and County of San Francisco, is the cultural center and a leading financial hub of the San Francisco Bay Area and Northern California. Wikipedia
Area: 659 km2 calculated
Virginia Beach is an independent city located in the U.S. state of Virginia. As of the 2010 census, the population was 437,994. In 2013, the population was estimated to be 448,479. It is the most populous city in Virginia as well as the 39th most populous in the United States. Wikipedia