This conversion is primarily for conceptual understanding or science fiction, to grasp how incredibly small human-scale distances are compared to the vastness of space. The result is extremely small.

1 foot is equal to approximately 1.895 x 10^-17 light-years. So, 5,000,000 feet is about 0.0000 light-years.

Direct practical uses are rare. It's mainly for illustrating scale differences in educational contexts or creative writing where you might want to emphasize the minuscule nature of a measurement against cosmic backgrounds.

5,000,000 feet is equal to approximately 947 miles.