Mario Kart World is listed at 22.2 GB on Nintendo’s Canadian store page. That is a current regional listing, not a universal install measurement: a May 31, 2025 report recorded Nintendo’s US and Japan listings changing from 23.4 GB to 21.9 GB. The figures reflect different regions and listing snapshots.
How large is Mario Kart World?
Nintendo’s current Canadian store listing gives Mario Kart World a file size of 22.2 GB (Nintendo Canada). This is the published store value; it is not an independent measurement of a completed installation.
Why do some reports say 21.9 GB?
On May 31, 2025, Nintendo Life reported that Nintendo’s US and Japan listings had changed from 23.4 GB to 21.9 GB (Nintendo Life). That dated report describes those listings at that time. It does not make 21.9 GB the current value for every region: the Canadian page currently lists 22.2 GB.
| Listing figure | Region and status | Source |
|---|---|---|
| 22.2 GB | Current Canadian store listing | Nintendo Canada |
| 21.9 GB | US and Japan listings reported May 31, 2025, after a change from 23.4 GB | Nintendo Life |
Store-listed sizes can change over time, including with updates, so check the listing for your region when planning storage. The figures alone do not establish why the estimate changed or whether the game’s content or compression changed.
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#1 Best Overall
- Race from one course to another through interconnected paths that span the world
- Traverse mountains, forests, cities, and more—with shifting weather patterns and a day/night cycle
- Ride on rails, jump off walls, skim across water, and more as you race for the finish line
- Take on the adrenaline-packed Knockout Tour—a fierce 24-driver elimination mode
- Explore courses at your own pace and wander the world to discover fun surprises in Free Roam
Does Mario Kart World require a microSD Express card?
No. Nintendo Support says no individual game currently requires additional storage to play. Switch 2 has 256 GB of internal storage, with some capacity reserved for system use; a card is an optional way to expand space for a larger library (Nintendo, Switch 2 announcement; Nintendo Support; Nintendo Support FAQ).
Which cards work with Switch 2?
For expanded storage, Switch 2 uses microSD Express cards, not ordinary microSD cards for software storage. Nintendo says compatible cards up to 2 TB are supported after an initial internet system update. See Nintendo’s microSD Express guidance for compatibility details.
Rank #2
- The next evolution of Nintendo Switch
- One system, three play modes: TV, Tabletop, and Handheld
- Larger, vivid, 7.9” LCD touch screen with support for HDR and up to 120 fps
- Race from one course to another through interconnected paths that span the world
- Traverse mountains, forests, cities, and more—with shifting weather patterns and a day/night cycle
What can expanded storage hold?
A microSD Express card can store downloaded software data, updates, downloadable content, screenshots and video captures. Game save data remains in the console’s system memory, according to Nintendo’s Switch 2 FAQ.
Does a Game-Key Card change the storage requirement?
A Game-Key Card is a key used to download a game rather than a card containing the full game data. Downloading requires an internet connection and enough free space in system memory or on a microSD Express card. This describes the format generally; it does not establish that every edition of Mario Kart World is a Game-Key Card (Nintendo Support).
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Rank #3
- [SEAMLESS OPEN WORLD] Experience an interconnected racing environment with zero loading screens between courses. Navigate a massive world featuring 24-hour dynamic day/night cycles and shifting weather patterns that directly impact vehicle traction and handling across mountains and cities.
- [ADVANCED RACING MECHANICS] Master all-new maneuvers including high-speed rail riding, wall jumping, and tactical water skimming. These next-gen traversal abilities allow players to discover hidden shortcuts and alternate routes within a 100% seamless world-map architecture.
- [24-PLAYER ELIMINATION MODE] Compete in the high-stakes Knockout Tour, an adrenaline-packed 24-driver elimination mode where racers are removed checkpoint by checkpoint. Supports up to 24-player online multiplayer with integrated GameChat for real-time social coordination.
- [NEXT-GEN TECHNICAL SPECS] Optimized exclusively for the Nintendo Switch 2 system to deliver stunning 4K Ultra HD resolution in docked mode and a locked 60FPS frame rate. Features enhanced texture mapping and global illumination for the most immersive visual experience in series history.
- [OPEN-WORLD EXPLORATION] Step away from the Grand Prix in the all-new Free Roam mode to wander the world at your own pace. Discover hidden surprises, unlockable vehicle parts, and brand-new drivers across diverse biomes including dense forests and sprawling urban landscapes.
What does the file size tell you?
Nintendo describes interconnected routes through varied environments and races supporting up to 24 drivers on its product page, but the listing does not explain why the game takes 22.2 GB or account for the earlier estimate change (Nintendo Canada). The size is useful for planning available storage; it is not evidence by itself of a particular design, optimization, or content change.
Quick Recap
Best Value
- A variety of playable characters are available, some with unique attributes that affect gameplay and platforming physics.
- Younger and less-experienced players will love playing as Toadette, who is brand new to both games, and Nabbit, who was formerly only playable in New Super Luigi U. Both characters offer extra assistance during play.
- Multiplayer sessions are even more fun, frantic, and exciting thanks to entertaining character interactions. Need a boost? Try jumping off a teammate’s head or getting a teammate to throw you.
- Features a wealth of help features, like a Hints gallery, reference videos, and a Super Guide in New Super Mario Bros. U that can complete levels for you if they’re giving you trouble.
- Three additional modes—Boost Rush, Challenges, and Coin Battle—mix up gameplay and add replayability, while also upping the difficulty for players who want to try something harder. Players can use their Mii characters in these modes.
Rank #4
![Mario Kart World Standard - Nintendo Switch 2 [Digital Code]](https://m.media-amazon.com/images/I/51zaiyfzDeL._SL160_.jpg)
- Race from one course to another through interconnected paths that span the world
- Traverse mountains, forests, cities, and more—with shifting weather patterns and a day/night cycle
- Ride on rails, jump off walls, skim across water, and more as you race for the finish line
- Take on the adrenaline-packed Knockout Tour—a fierce 24-driver elimination mode
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
