How much storage does a website actually need?
The short answer
Far less than you think. A normal website with dozens of pages and images fits comfortably in 5 to 10 gigabytes. Entry plans with 10 to 25 gigabytes are plenty for most sites. Only with lots of video or thousands of products does storage become a real criterion.
In detail
Web pages themselves are tiny. Images and files are what add up. A photo sized properly for the web weighs a few hundred kilobytes. Even with hundreds of photos you stay under a gigabyte. A WordPress install with a theme and plugins lands at a few hundred megabytes. A mailbox usually grows faster than the site itself.
Unlimited storage sounds attractive, but a normal site never needs it. The type of storage matters more. Modern NVMe or SSD drives make your site noticeably faster than old-fashioned disks. Hostinger and Hosting.com lead with that in their plans.
There are real exceptions. Video is best left to YouTube or Vimeo. If you run a photo archive or sell thousands of products, check the numbers. Everyone else can choose on speed and service rather than gigabytes.