Philadelphia is 7.9 times larger than Hartford, Connecticut.
Area: 47 km2 calculated
Hartford is the capital of the U.S. state of Connecticut and the historic seat of Hartford County until Connecticut disbanded county government in 1960. Wikipedia
Area: 370 km2 calculated
Philadelphia is the largest city in the Commonwealth of Pennsylvania, the fifth-most-populous city in the United States, and the core of the sixth-largest metropolitan area in the country. Wikipedia