https://www.techradar.com/news/the-a-to-z-of-photography-zoom-range

Zoom range is a big selling point for digital cameras and lenses. The average ‘kit’ lens sold with an entry-level DSLR or mirrorless camera will have a zoom range of 3x, a premium kit lens might have a 5x zoom range, while a superzoom lens will have a zoom range of 10x or more. But what does this actually mean?

Put simply, the zoom range is the difference in magnification from one end of the zoom range to the other. With a regular DSLR or mirrorless camera kit lens, the lens will offer 3x the magnification when you’re fully zoomed in compared to when the lens is zoomed right out.