Knowledge — 2 years ago

Terabytes, Gigabytes, & Petabytes: How Big Are They and What Do they Mean Exactly?

by Garry S.

Terabytes, Gigabytes, Petabytes

How Big are Terabytes, Gigabytes, & Petabytes

There is no doubt that one of the common queries related to technology that people ask are related to metrics for data storage such as megabytes, petabytes, gigabytes, and terabytes, among others.

While you could be already aware of the majority of these metrics or terms, are you sure about their actual meanings? For instance, are you aware of a terabyte is made of how many gigabytes? Or, what is the actual meaning of 1 terabyte in the actual world? Prior to purchasing your new memory card or a hard drive, it is imperative for you to know about the details of all these metrics. After all, you would like to select a new tablet on the basis of its memory size.

The good news for you is that through all these terms may appear to be a bit confusing to you at first glance, the above measurement units can be seamlessly convertible into one another. Also, all these terms are not difficult concepts to understand as is obvious from our examples mentioned below in this article.


The fundamentals:

In order to effortlessly convert any measurement unit to another, you have to be aware that for each higher level, the unit should be multiplied by 1,024. However, you need not worry in case it sounds a bit baffling. We have given many instances below, which will help you to grasp the computations quite easily.


For instance, one Terabyte or TB comprises of 1,024 Gigabyte or GB, So, the larger equation goes like this:

One Terabyte is equal to 1,024 Gigabytes, which is equal to 1,073,741,824 KB, which is equal to 1,099,511,627,776 byte

It can be also explained in a different way too:

A Terabyte is supposed to be 1,024 times larger in comparison to a Gigabyte. You have to simply take a certain TB value and then multiply it by 1,024, forgetting the actual number of Gigabytes. On the other hand, in order to convert from Gigabyte to Terabyte just divide that GB by 1,024.



One Gigabyte or GB comprises of 1,024 MB.

One GB = 1,024 Megabyte= 1,048,576 Kilobytes= 1,073,741,824 Bytes

Similar to our earlier example, a Gigabyte is 1,024 times bigger in comparison to one Megabyte. In order to convert a value from Gigabyte to Megabyte, multiply the GB value by 1,024 for getting the actual numbers of Megabytes. In order to convert into Gigabytes from Megabytes, the latter has to be divided by 1,024.

How Big is a Terabyte?

It is the most widely used unit for measuring the size of the hard drive. It is a unit one would frequently come across. In fact, 1 TB can occupy up to as many as 728,177 floppy disks. Alternatively, 1TB can store information in 1,498 CD-ROMs.

In 2018 itself, any average priced PC came with hard drives in the storage range of one to three TBs. Several Internet Service Providers have capped 1 TB of monthly data usage.


How Big is a Petabyte?

While Petabyte is a huge data chunk, it is becoming more common these days. It takes more than seven hundred forty-five floppy disks or about one and a half millions of CD-ROM discs. Think about this- one Petabyte is equal to more than four thousand digital pictures every day for a person's entire life.

Also, one PB is equivalent to 1,024 TB. It sounds impressive but true that one Petabyte is equivalent to one quadrillion bytes.

How Big is a Gigabyte?

Gigabytes or GBs are extremely commonly used metrics no matter where you go. You will find the usage of Gigabytes in different spheres of life ranging from film downloads to memory cards and data plans for your smartphone.

One GB is as good as over seven hundred floppy discs or little over one compact disc. However, do not be under the impression that it is a small storage metric by any means. It is a data level one uses up fast these days and even many times during the course of each day.


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