The Times Square Ball weighed 11,875 pounds in 2018.
The 2018 ball was the current Waterford Crystal design used for the New Year's Eve celebration in Times Square. It measured 12 feet in diameter and was covered with thousands of crystal panels illuminated by LEDs, making it vastly larger and heavier than the original 1907 ball.
Its weight includes the illuminated sphere and its structural components, not merely the visible crystal panels. The ball is raised to the top of One Times Square before the countdown and lowered along a pole during the final minute of the old year.
The design has changed several times as lighting technology and the event's visual scale evolved. Sources may round the weight or describe later specifications differently, so the year matters when quoting this figure. The 2018 specification is the precise historical fact asked here.