Passage: Lake Michigan has a surface area of 22,404 sq.mi (58,026 km2); (13,237 square miles, 34,284 km2 lying in Michigan state, 7,358 square miles, 19,056 km2 in Wisconsin, 234 square miles, 606 km2 in Indiana, & 1,576 square miles, 4,079 km2 in Illinois) making it the largest lake entirely within one country by surface area (Lake Baikal, in Russia, is larger by water volume), and the fifth-largest lake in the world. It is the larger half of Lake Michigan–Huron, which is the largest body of fresh water in the world by surface area. It is 307 miles (494 km) long by 118 miles (190 km) wide with a shoreline 1,640 miles (2,640 km) long. The lake's average depth is 46 fathoms 3 feet (279 ft; 85 m), while its greatest depth is 153 fathoms 5 feet (923 ft; 281 m). It contains a volume of 1,180 cubic miles (4,918 km³) of water. Green Bay in the northwest is its largest bay. Grand Traverse Bay in its northeast is another large bay.  Lake Michigan's deepest region, which lies in its northern-half, is called Chippewa Basin (named after prehistoric Lake Chippewa) and is separated from South Chippewa Basin, by a relatively deeper area called the Mid Lake Plateau.

Question: It is how many kilometers long?
494 km