PlayStation Plus cloud storage gives PS5 owners a remote backup of their saved game data, and the standard PlayStation Plus plan offers 100 GB of online space per console for syncing save files. That 100 GB label looks simple, but the same number can mean 100,000,000,000 bytes or 107,374,182,400 bytes depending on whether the source uses the decimal (SI) standard at 1000 or the binary (IEC) standard at 1024 — a gap of roughly 7 percent that grows noticeable on larger quotas. Drive makers and storage marketing use decimal, while Windows and the PS5 system itself report capacity in binary, which is why a 100 GB cloud plan can look slightly different in your console's storage menu. The Data Storage Converter translates between GB, MB, TB, KB, and bytes using both standards, so PS5 owners can move between units without losing track of what the system is actually storing. The converter runs entirely in your browser, so quota calculations and personal file-size checks never leave the device. Below is how to use the tool, how the two standards differ for PlayStation Plus plans, and where the common conversion traps hide when you transfer data.
What PS5 Cloud Storage Holds and the Units It Uses
PS5 cloud storage is a remote drive managed by Sony through the PlayStation Plus subscription. Each user on a PS5 can upload saved game progress, settings, and some game data to that drive, then pull it back down onto a different console or onto the same PS5 after a system reset. The standard tier of the subscription advertises 100 GB of cloud space per console, with higher tiers offering larger quotas. Sony's marketing pages and the PlayStation Plus dashboard both show those quotas using the familiar GB label — and that single label is where most conversion confusion starts.
A "gigabyte" on a marketing page and a "gigabyte" inside the PS5 settings menu are not always the same number of bytes. The PlayStation Plus page is describing the SI (decimal) gigabyte, the unit drive makers use. The PS5's storage screen, like Windows, macOS, and most operating systems, divides bytes by 1024 four times and labels the result with the same GB abbreviation. So the same 100 GB cloud plan that PlayStation Plus advertises as 100,000,000,000 bytes shows up in your console's storage menu as roughly 93.13 GiB (binary gigabytes), even though no data is missing. The Data Storage Converter toggles between both interpretations so you can see the real byte count behind any quota you see on screen.
The Decimal and Binary Standards Behind Your Numbers
Two standards exist because storage hardware and operating systems diverged decades ago. The decimal (SI) standard treats every prefix as a clean power of 1000: 1 KB = 1000 B, 1 MB = 1,000,000 B, 1 GB = 1,000,000,000 B, and 1 TB = 1,000,000,000,000 B. Drive manufacturers, network speed sheets, and the PlayStation Plus cloud plan page use this definition because it lines up with the way bytes are physically addressed on flash media. The binary (IEC) standard treats every step as a power of 1024: 1 KiB = 1024 B, 1 MiB = 1,048,576 B, 1 GiB = 1,073,741,824 B, and 1 TiB = 1,099,511,627,776 B. The PS5, Windows, and most file managers use this scale because memory is built in powers of two.
The International Electrotechnical Commission created the unambiguous "kibibyte," "mebibyte," "gibibyte," and "tebibyte" names (KiB, MiB, GiB, TiB) to remove the old ambiguity around whether "kilobyte" meant 1000 or 1024. In practice the plain "GB" label is still used for both, which is exactly the trap PS5 owners fall into when they compare a 100 GB cloud plan to what their console's storage screen reports. The Data Storage Converter follows NIST's Prefixes for Binary Multiples and the IEC 80000-13:2008 standard, so the decimal ladder stays at 1000 and the binary ladder stays at 1024 with no rounding of the definitions.
How to Convert PS5 Cloud Storage Sizes
Translating a PS5 cloud quota between units is a three-step task. Open the Data Storage Converter and follow the steps below.
- Type the amount you want to convert into the storage value field — for example, 100 if you are converting the standard 100 GB PlayStation Plus cloud quota.
- Pick the prefix standard. Choose Decimal (1000) when matching what Sony's PlayStation Plus page advertises, or Binary (1024) when matching what the PS5 settings menu shows. Then choose the source unit (GB) and the target unit (MB, TB, KB, bytes, or bits).
- Read the converted result instantly. Tick the "Show all units at once" option to see the same 100 GB value expressed in bits, bytes, KB, MB, GB, TB, and PB together, under whichever standard you selected.
If you are checking how much a save file uses, repeat the same steps but enter the file size in MB and switch the target to GB. The "Show all units at once" view is the fastest way to see where a single number lands across the full storage ladder, which is helpful when you are planning how many saves will fit inside a PlayStation Plus quota.
Bits, Bytes, and Internet Speed Confusion
Storage and transfer speed use the same letters but with opposite cases, and confusing them is one of the most common ways PS5 owners overestimate how long a cloud sync will take. Storage is measured in bytes, written with a capital B (KB, MB, GB, TB). Data transfer rates are usually quoted in bits, written with a lowercase b (Kb, Mb, Gb). Exactly 8 bits make 1 byte in both the decimal and binary standards, so a 100 Mb/s internet connection delivers only about 12.5 MB/s of real file movement.
When the PS5 reports that a 5 GB save upload will take, say, 6 minutes over your home network, the math is based on the actual byte size of the save and the byte-per-second rate your connection can sustain. If you compare the 5 GB save to a quoted 100 Mb/s upload speed directly, the upload will look ten times faster than it really is. The Data Storage Converter includes bit, so you can flip between storage units and transfer-rate units in the same place whenever a spec sheet mixes them. The factor of 8 is the only constant you need.
PS5 Cloud Storage Quotas Side by Side
The table below lists common PlayStation Plus cloud storage quotas in both standards. Decimal numbers are what the PlayStation Plus dashboard advertises. Binary numbers are what the PS5 settings screen will roughly show when the same quota is consumed.
| Quota (label) | Decimal bytes (SI) | Binary bytes shown (IEC) |
|---|---|---|
| 100 GB cloud plan | 100,000,000,000 B | about 93.13 GiB |
| 500 GB cloud plan | 500,000,000,000 B | about 465.66 GiB |
| 1 TB cloud plan | 1,000,000,000,000 B | about 931.32 GiB |
| Single save file (1 GB) | 1,000,000,000 B | about 0.93 GiB |
For a worked example, take the standard 100 GB PlayStation Plus cloud quota. Under the decimal standard, 100 GB is exactly 100,000,000,000 bytes. Under the binary standard, that same byte count is 100,000,000,000 ÷ 1024 = 97,656,250 KiB, then ÷ 1024 = 95,367.43 MiB, then ÷ 1024 ≈ 93.13 GiB. The PS5 settings screen will report the cloud plan as holding roughly 93.13 GB even though it is the same 100,000,000,000 bytes. Use the Data Storage Converter to reproduce the exact number for any quota or file size you have on hand.
Planning a Cloud Sync or Move
Most PS5 owners reach for the cloud when they need to free up local console storage, move saves to a new PS5, or recover data after a system reset. The byte-level conversion only matters at the moment you compare what is in the cloud against what your games need. A 100 GB cloud plan holds roughly 93 GiB in the binary view the PS5 reports, so a stack of save files that adds up to 80 GiB in the PS5 menu will still leave about 13 GiB of headroom against the 100 GB label. Use the converter to translate any file size you see in the storage menu into the matching SI number when you are reading a PlayStation Plus plan page.
For related tasks — such as reorganizing local PS5 storage between GB and TB, or converting save-file sizes before sharing them — the same tool handles every step without uploading your data. Pair the converter with the rest of the storage guides on the site when you need to move the same number between spreadsheets, messaging apps, or console menus that label units differently.
Related reading: Frozen Embryo Transfer: Pregnancy Calculator Guide.
Related reading: How to Transfer Stored Data KSP.