HDD is displayed incorrectly, only 1.81 instead of 2TB?

Hello community, I bought a WD_Black drive and installed it. It's external, so it's connected via USB. I connected it, but it only shows 1.81 TB in the system instead of the 2.5 TB specified by the manufacturer. What should I do? Does anyone have any idea or a video? Thanks in advance.

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ChrisCat1, UserMod Light

This is normal because this is two different size units which are incorrectly shortened.

The manufacturers are available as Gigabyte (GB) or Terabyte (TB). Computers do not expect the decimal system but the binary system. So Windows is available as Gibibyte (GiB) or Tebibyte (TiB), but writes GB and TB.

For example, a 128 GB hard disk 119.2 GiB, which Windows specifies as 119.2 GB, has a 500GB hard drive 465.66 GiB or, in your case, a 2 TB hard drive just 1.81 TiB. The difference between these two size units increases the greater the memory area.
Thus, the difference between kilobyte (kB) and kibibyte (KiB) is 2.4%, gigabyte (GB) and gibibyte (GiB) is 7.4% and between terabyte (TB) and tebibyte (TiB) is already 10%.
For example, you can find an exact list of the size differences in this comparison table: https://de.wikipedia.org/wiki/Byte#Comparative table

ListigerIvan
2 years ago

Totally normal. 2tb is without formatting, 1.8x is the size of the formatted memory.

Is like all storage media worldwide without exception.

So chill.

Kelec
2 years ago
Reply to  ListigerIvan

Totally normal. 2tb is without formatting, 1.8x is the size of the formatted memory.

Is normal but does not really have to do with formatting.

The manufacturers specify the size in Terrabyte and the OS shows them in Tibibyte. The difference which arises is the result of the conversion between these units.

blackhaya
2 years ago
Reply to  Kelec

Also by formatting, the entire storage space is not available. Certain subareas are respected and are not available for use data

Kelec
2 years ago

It’s not a trick. The manufacturer also correctly specifies the size.

However, Microsoft uses the wrong abbreviation.

In Windows, the size of the plate itself should be written with TiB. If Windows would really specify TB, then a 2TB large plate would also be 2TB large.

The fact that the file system needs space is clear, but at the end nothing that the hard drive manufacturer might consider so because this is different from FS to FS, but is actually always not worth talking.

blackhaya
2 years ago

Nonetheless, manufacturers use every trick to make the whole visually appear somewhat larger.

Kelec
2 years ago

It is also clear that the file system also needs space, but if you convert 1.81 Tebibyte in Terrabyte, there is actually quite exactly 2Terrabyte.

1.99 TB to be exact.

The difference of about 10% comes here almost entirely from the conversion between the units and not from the file system.