Fort Worth, Texas, United States is situated about 856.6 miles (that is, 1378.6 kilometres) away from Phoenix, Arizona, United States. It is just about 744.4 nautical miles away. Fort Worth would be the fifth-largest city to be found in the state of Texas. Additionally it ranks 19th-largest among states located in the US. You can find Fort Worth in North Texas as it falls as part of the American Southwest. The 2005 U.S. Census puts Fort Worth's population estimate as 624,067 people in total. The city which covers nearly 300 square miles is also prided as the county seat belonging to Tarrant County. Phoenix, on the other hand is the capital of the renowned State of Arizona. It is also known as the county seat of Maricopa County. It's the most populous city sited in Arizona.