A common conversion that’s done when setting storage size is to calculate the correct number of Bytes and other values from the base, desired Kilobytes, Megabytes, Gigabytes, Terabytes, or even Petabytes. The calculator below enables you to enter your desired value and then easily convert to the correct number of Bytes, Kilobytes, Megabytes, and so on. You will also find below a table of common Byte conversions needed to see what those are in Gigabytes, Terabytes, and so on as well.

This type of conversion from Gigabytes (or others) to Bytes is a common task necessary when configuring various cloud services; such as Azure SQL Database or others. While many unit conversions are easily integrated within search engines, the ability to convert Byte units is not, so I created this simple calculator to help with that purpose.

Byte Conversion Calculator

To do do a conversion, enter the number you want to convert in the below text box, select the unit (Bytes, Kilobytes, Megabytes, Gigabytes, or Terabytes), then click Calculate.

Byte Conversion Calculator

Bits
Bytes
Kilobytes
Megabytes
Gigabytes
Terabytes
Petabytes

Common Byte Conversions

Here’s a table of common byte conversions that are used in various scenarios:

Bytes Kilobytes Megabytes Gigabytes Terabytes Petabytes
1024 1
10240 10
102400 100
1048576 1024 1
10485760 10240 10
134217728 131072 128
536870912 524288 512
1073741824 1048576 1024 1
53687091200 52428800 51200 50
137438953472 134217728 131072 128
549755813888 536870912 524288 512
1099511627776 1073741824 1048576 1024 1
1125899906842624 1099511627776 1073741824 1048576 1024 1

I hope you find this conversion calculator and common Byte conversions table helpful. I know this is something that I’ve had to do myself manually, and a simple calculator like this definitely saves time when provisioning cloud services, virtual machine disks, and other resources where this is required.

Facts about Bits and Bytes

Here are several facts about bit and bytes that you might not be familiar with:

A Bit is the smallest unit of data used by computer systems. A single Bit is either a 1 or 0 in value.

A Byte is made up of 8 bits. A Byte is big enough to be able to encode or represent a single character.

A Kilobyte is made up of 1,024 Bytes in computer memory. Yes, “Kilo” means 1,000, but the way computer systems use Bytes for memory and storage, a Kilobyte is actual 1,024 Bytes.

A Megabyte is a million Bytes, but not exactly. Remember that a Kilobyte is actually 1,024 Bytes? Well, a Megabyte is actually 1,000 x 1,024. So a Megabyte being 1,000 Kilobytes, is actually 1,048,576 Bytes.

A Gigabyte is a billion Bytes, but you still need to factor in the fact that a Kilobyte is 1,024 Bytes. So, a Gigabyte is actually 1,000,000 X 1,024. So, a Gigabyte being 1,000,000 Bytes, is actually 1,073,741,824 Bytes.

The reason this calculator is needed to calculate exactly how many Bytes are in a Gigabyte, Terabyte, etc. is because it’s difficulty to multiply by 1,024 in your head. So the Byte calculator on this page (above) does the math for you so you can easily figure out how many Bytes are in a Gigabyte, Terabyte, etc.

Frequently Asked Questions

What is a byte?

A byte is a unit of digital information that consists of 8 bits. It is commonly used to represent characters in text, among other data types in computing.

How do I convert bytes to kilobytes (KB)?

To convert bytes to kilobytes, divide the byte value by 1024. For example, 1024 bytes = 1 KB.

What about converting bytes to megabytes (MB)?

To convert bytes to megabytes, divide the byte value by 102421024^210242 (1024 squared). For instance, 1,048,576 bytes = 1 MB.

How do I convert bytes to gigabytes (GB)?

To convert bytes to gigabytes, divide the byte value by 102431024^310243 (1024 cubed). For example, 1,073,741,824 bytes = 1 GB.

What if I need to convert larger units like terabytes (TB) or petabytes (PB)?

For larger conversions:

  • To convert bytes to terabytes, divide by 102441024^410244 (1024 to the power of 4).
  • To convert bytes to petabytes, divide by 102451024^510245 (1024 to the power of 5).

Q: How accurate are these conversions in real-world applications?

These conversions are based on binary prefixes commonly used in computing. However, in some contexts, metric prefixes (based on powers of 1000) are used instead.

Are there any tools or apps to help with byte conversions?

Yes, there are numerous online tools, calculators, and software applications that can quickly convert between different units of digital storage.

What is the difference between a byte and a bit?

A bit is the smallest unit of data in computing, representing a binary digit (0 or 1). A byte consists of 8 bits and is typically used to represent a single character or other small amount of data.

Why are these conversions important?

Understanding byte conversions is crucial for managing digital storage capacities, data transfer rates, and for determining file sizes accurately in computing and telecommunications.

How can I estimate file sizes using byte conversions?

By knowing the byte size of individual components (like images, text files, or videos), you can estimate the total size of a file or a collection of files, which is useful for storage planning and data management.

What are binary prefixes and why are they used in byte conversions?

Binary prefixes (like kibi-, mebi-, gibi-, etc.) are based on powers of 1024 rather than 1000 (as in metric prefixes). They are used in byte conversions to accurately reflect binary-based digital storage capacities commonly used in computing.

How do I convert between bits and bytes?

To convert bits to bytes, divide by 8 (since 1 byte = 8 bits). Conversely, to convert bytes to bits, multiply by 8.

Can I convert directly between different units (like KB to GB) without going through bytes?

Yes, you can convert directly between kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), and so on. Just remember the appropriate conversion factors (e.g., 1 KB = 1024 bytes, 1 MB = 1024 KB).

Are there differences between SI (International System of Units) and IEC (International Electrotechnical Commission) standards in byte conversions?

Yes, there are. SI standards use metric prefixes (e.g., kilo-, mega-, giga-) where 1 kilobyte = 1000 bytes, while IEC standards use binary prefixes (kibi-, mebi-, gibi-) where 1 kibibyte = 1024 bytes. This distinction is important in technical contexts for clarity in digital storage measurements.

How can byte conversions affect data transfer speeds and network bandwidth?

Understanding byte conversions helps in estimating file transfer times and optimizing network bandwidth. For example, if you know the size of a file in bytes and the network speed in bits per second, you can calculate how long it will take to transfer the file. This is crucial for network performance optimization and planning data transfers efficiently.

Chris Pietschmann is a Microsoft MVP, HashiCorp Ambassador, and Microsoft Certified Trainer (MCT) with 20+ years of experience designing and building Cloud & Enterprise systems. He has worked with companies of all sizes from startups to large enterprises. He has a passion for technology and sharing what he learns with others to help enable them to learn faster and be more productive.
Microsoft MVP HashiCorp Ambassador

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