Why is 1TB equal to 1024GB and not 1000GB?

Name: Reme – Origin: Spain

Visitor Question or Comment:

Why is 1TB equal to 1024GB and not 1000GB?

Response from ALEGSA.com.ar:

1 terabyte (TB) is 1024 gigabyte (GB), using the classic units used in computing.

You are right, the prefixes tera, giga, mega, kilo, etc. are misused. The prefix «tera» (of Greek origin) means «one billion». So actually 1 terabyte should be 1000 gigabytes (or 1,000,000,000,000 bytes).

The same goes for 1 GB, which in computing is 1024 MB (megabyte), when in reality «giga» means one billion, so it should be 1000 MB (or 1,000,000,000 bytes). This problem is the same for kilobyte and megabyte.

The truth is that these prefixes were chosen because they were quite close to the number they wanted to represent, but they are misused.

Some time ago there was a proposal to clear up this confusion and change the names of these units, but it has not been fully extended yet.

I suggest you read these Wikipedia articles if you want to know more about these proposals and also better understand why prefixes are misused:



Has doubts? do you need to ask another question? We reply to your email: write here

Write a comment or question here

See other related questions and comments

Other related questions and answers:

How many GB equals 459045.85 KB?
459045.85 kilobytes equals 0.43778 gigabytes. I leave you here a calculator so you can do the calculations quickly: – Calc…

512000 KB, how many GB is that?
Considering the traditional storage system (the old one), where 1 GB is 1024 KB, then: 512000 KB is 500 GB….

Why is 1TB equal to 1024GB and not 1000GB?
1 terabyte (TB) is 1024 gigabyte (GB), using the classic units used in computing. You are right, the p…

How many 1440kb floppy disks do I need to store a 50mb file?
Taking into account the traditional information storage units in computers: 1 MB is 1024 KB. 50 MB then it will be: 5…

How many GB are there in 1929 MB?
If we take into account that 1 GB (gigabyte) is 1024 MB (megabyte), then: 1929 MB / 1024 MB = 1.88 GB Therefore 1929 MB is 1.88 GB…

How many CDs would you need to equal the capacity of 16 GB of memory?
A typical CD can hold 650MB (there are 700MB, 800MB, and 900MB versions), but that’s generally the most standard number. Wearing…

Equivalences in characters and multiples of the byte
A bit has a single value, a 1 or a 0, it is not possible to represent characters with a single bit. A byte is 8 bits, that is, enough to…

I asked for 2 speed and it says link speed 38 mbps, sometimes 65 mbps.
You asked for 2 megs (or rather 2 Mbps) of internet speed (2 gb is impossible, or something on the drive you give me doesn’t close). To know…

How many bytes equals a RAM of two gigabytes?
If we use the traditional units where: 1024 bytes = 1 KB 1024 KB = 1 MB 1024 MB = 1 GB 2 GB is 2048 MB Then by rule…

Each name weighs 10 bytes, how many names go into 2 gigabytes?
Hi Janine. 1 gigabyte is 1,073,741,824 bytes 2 gigabytes is 2,147,483,648 bytes 2,147,483,648 bytes divided by 10 bytes = 214,748,364…

Why computer science is based on the 2
Computer science is based on the 2; if you raise the 2 to different powers you will get: 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024… As you will see, so…

How many GB (gigabyte) is one TB (terabyte) equal to?
1 TB equals 1024 GB More conversions here: Byte unit conversion…