Well, Guinness says 14,177 ft 9 in, and everybody in the comments says they've beaten that. I see to it that they are all lying! I don't know how long mine is but it reaches from the beginning to a tad farther than the end on a hotel hall.
The world's biggest ball of string, located in Branson, Missouri, measures over 41 feet in circumference and weighs over 6 tons. It continues to grow as visitors add more string to it.
The largest ball of string is located in Dawrin, MN. It weighs 17,400 pounds, is twelve feet in diameter, and was the creation of Francis A. Johnson.
1 foot
jk
49 miles
depends how big the ball is >.>
999,999,999,999,999,999ft long
=The worlds biggest pair of feet are==100 inches long=
The worlds biggest pancake is 15 meters long and weights a astonishing 3 tones
I had one that was 16 inches long
when stretched out, the worlds biggest slinky has been measured to be 40ft. and 2in.
five billion feet long five billion feet long Hepingping
The longest world's biggest dog is three feet and seven inches.
400,50,00 feet long idk why would u want to know that
The worlds biggest snake is the Rock pyhton
Well as far as I know the worlds biggest bun is about 4  long 
The worlds longest caterpillar reached a length of 24.5 cm.