how many feet are in 100 christmas lights

The length of 100 Christmas lights would depend on the type of lights and the length of each strand. Most Christmas lights come in strands of 25 or 50 lights. If you have 100 Christmas lights in total, they could be made up of 4 strands of 25 lights each or 2 strands of 50 lights each. In either case, there would be approximately 25 feet of lights.