When shopping for a new computer, storage capacity can be confusing. Specs like "500 GB" look straightforward, but how much is that in practical terms? Can it handle your apps, media downloads, and files without running out? Without real-world context, it's tough to gauge.
Contents: SSD or hard drive? | How much space do I need? | Light use | Medium use | Heavy use | Conclusion
Choosing between an SSD (Solid State Drive) and a traditional HDD matters for capacity and cost. SSDs typically cost about twice as much per gigabyte, meaning you get roughly half the storage for the same budget compared to HDDs.
Documents
For basic work like Word docs, presentations, and spreadsheets, space needs are minimal. Plain files take kilobytes; even image-heavy ones rarely exceed a few megabytes. A 10 MB document is uncommon, but even then, you'd fit over 100 in a single gigabyte. With hundreds of gigabytes on most drives, this won't strain your storage.
Music (MP3)
MP3s, once the benchmark for internet speeds, average 5 MB per track depending on length. That's over 200 songs per gigabyte—plenty for most libraries.
Photos and Pictures
Saving web images or casual snaps? Files are typically 3-5 MB each, similar to MP3s. Folders might hit a gigabyte, but rarely threaten drive capacity.
What You Really Need
For light users juggling documents and media, 250-500 GB suffices. Cloud storage options pair well with compact local drives (e.g., 32 GB SSDs focused on online files).
Photography
Serious photographers generate more data: high-res shots at 5 MB each. Shooting five frames per subject means 40 setups per gigabyte. Pros need extra space to avoid constant deletions.
Music (High Quality)
FLAC files run 15-20 MB per track—three to four times MP3 size—for superior audio. Large collections fill space fast.
Movies and TV Shows (SD)
Digital downloads are popular. SD movies (2 hours) or episodes average 1.5 GB. A full drive holds ~130 movies or 260 hour-long shows, minus OS and apps.
Small Games
Indie or older games range 300 MB to 4 GB. They're easy to uninstall/reinstall and don't demand SSD speeds.
What You Really Need
One activity fits on 250 GB; combine gaming/movies and aim for 500 GB.
Big Games
Modern titles, especially MMOs, balloon to 40-70 GB+. Plan accordingly for multiple installs.
Movies and TV Shows (HD)
HD versions hit 6-8 GB for two hours—four times SD. A 250 GB media drive stores ~31 movies or 62 episodes.
What You Really Need
500 GB works for games or HD media alone; both demand at least 1 TB to avoid shortages.
Estimating storage needs takes practice, but matching capacity to habits prevents frustration. External drives or USBs help, but built-in space is seamless. If a deal offers extra, grab it—future-proofing pays off. This guide, drawn from real-world tech advising, clarifies choices for your next PC.
This article was first published in September 2016 and updated in December 2018.
