If you’re downloading WoW for the first time or coming back after a long break, one of the first practical questions you’ll ask is how many gb does world of warcraft use before you start clearing space on your hard drive. I’ve been there too: a few years ago, I tried to install the Shadowlands expansion on my old gaming laptop only to hit a wall 70% through the download, because I only set aside 80GB of space and didn’t account for all the extra content added since I last played. We’ll break down the current storage requirements, extra space you might not account for, and easy fixes if you’re short on disk space below.
How Many GB Does World of Warcraft Use for Base Game + Expansions?
As of the latest Dragonflight content updates, a clean install of the base game plus all currently released expansions sits at 120GB to 140GB for both Windows and Mac devices, with only a 3 to 5GB difference between the two operating systems. If you’ve had the game installed for multiple expansions without a clean reinstall, your total size can jump to 160GB to 180GB, because leftover patch files and old unused assets don’t get automatically deleted when you update. The initial download you see on the Battle.net launcher is smaller than the final installed size, because the download files are compressed and unpack during the installation process, so don’t rely only on the listed download size when planning your storage.
Each new major expansion adds roughly 15 to 25GB of new content on release, while minor content patches and bug fixes add between a few hundred MB and 2GB per update. The Windows version is slightly larger than the Mac version because it includes extra anti-cheat and compatibility files for different PC hardware configurations, but the difference is negligible for most players.
Extra Storage Used by Add-ons, Screenshots, and Mods
The base install size doesn’t account for all the extra content you’ll add to the game the longer you play, and those small files can add up to a surprisingly large amount over time. If you’re a casual player who only uses 10 to 20 basic add-ons for quest tracking and raid timers, that extra content will only take up 500MB to 2GB total, which is barely noticeable. But if you’re a mythic raider or high-key M+ main with custom UI overhauls, hundreds of WeakAuras, and 100+ specialized add-ons, that extra content can jump to 5GB or more.
Screenshots and gameplay clips are another hidden storage drain, especially if you play on 4K settings. I personally have almost 12GB of old WoW screenshots saved from raid first kills, exploration trips, and silly in-game moments with guildmates that I’ve accumulated over 10 years of play. Temporary cache files and leftover patch files from years of updates also bloat the install size, even if you never add any custom content yourself.
- Custom add-on packs and UI overhauls (1GB to 10GB depending on complexity)
- In-game screenshots and recorded gameplay clips (varies by number and resolution)
- Temporary cache and patch leftover files (2GB to 15GB for long-uncleaned installs)
- Public Test Realm (PTR) installs if you opt in (adds another 80GB to 100GB per PTR version)
Tips to Reduce World of Warcraft Storage Footprint
You don’t have to delete your whole WoW install to free up space if you’re running low on disk space. The easiest fix for most players with older installs is to do a clean reinstall of the game instead of continuing to patch it year after year. Clean installs wipe all leftover patch files, old unused expansion assets, and broken cache files, which can cut 20 to 40GB off your total install size right away.
Uninstall the PTR if you don’t actively test new patches, because most casual players don’t need it, and it takes almost as much space as the full main game. You can also go through your add-on folder every 3 to 6 months to delete add-ons you don’t use anymore, and sort through old screenshots and clips to delete the ones you don’t need to keep. I did this last year and freed up almost 15GB of space without touching any of the core game files.
You can also move your WoW install to a cheaper HDD instead of keeping it on your faster SSD if you don’t mind slightly longer load times. I tested this myself when my 1TB SSD was full last year, and the load time difference was only 5 to 10 seconds for most zones, which was totally worth the extra 120GB of SSD space I freed up for other games. If you play on a lower-end PC, you can also disable the high-resolution texture pack in the Battle.net launcher settings to cut another 15 to 20GB off the install size.
How Much Free Space Should You Reserve for Future WoW Updates?
One mistake a lot of players make is only leaving exactly enough space for the current install, then running into errors when a big new patch or expansion drops. You should always leave at least 30GB of extra free space on the drive where you have WoW installed. Big expansion pre-patches can be 20 to 25GB in size, and the Battle.net launcher needs extra temporary space to unpack and install patch files without corrupting your existing install.
If you don’t have enough free space when a patch drops, the update will fail mid-install, and in some cases you might have to reinstall the entire game to fix corrupted files. If you plan to keep playing WoW for the next few years, it’s smart to reserve at least 200GB total for the game, to account for new expansion content, regular patches, and any extra add-ons or custom content you might add down the line. That extra space also helps extend the lifespan of your SSD, since filling an SSD completely to 100% capacity can slow it down over time.
At the end of the day, how many gb does world of warcraft use will vary based on how long you’ve had the game installed and what extra custom content you add, but 120GB to 140GB for a clean current install is a safe number to plan for. Don’t forget to leave extra space for future patches and your own screenshots or add-ons, so you don’t run into frustrating download errors when a new update drops. If you’re short on space, the simple fixes we covered can cut down your install size by 20GB or more without ruining your gameplay experience.
