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Convert GB to bytes

Gigabytes to bytes. Enter a value to convert, or use the GB to bytes chart further down the page.

1 GB = 1,073,741,824 B

1 gigabyte equals 1,073,741,824 bytes. Going the other way, 1 byte = 9.313225746e-10 gigabytes.

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Check this before you rely on it. This converter is provided free and without warranty, and its results are not professional advice.

Note. This converter uses the binary convention: 1 KB = 1024 bytes, 1 MB = 1024 KB, 1 GB = 1024 MB. That is what Windows, macOS and Linux report. Storage manufacturers instead use decimal SI units where 1 GB = 1,000,000,000 bytes, which is why a “1 TB” drive shows up as about 931 GB.

How to convert GB to bytes

To convert gigabytes to bytes, multiply the gigabyte value by 1073741824. You can also divide by 9.313225746e-10 to get the same answer.

B = GB × 1073741824

Worked example

Convert 8 GB to bytes:

8 GB = 8,589,934,592 B

GB to bytes conversion chart

Use this GB to bytes table for quick reference without typing anything.

GB to bytes conversion table
gigabytes (GB)bytes (B)
1 GB1,073,741,824 B
2 GB2,147,483,648 B
4 GB4,294,967,296 B
8 GB8,589,934,592 B
16 GB17,179,869,180 B
32 GB34,359,738,370 B
64 GB68,719,476,740 B
128 GB137,438,953,500 B
256 GB274,877,906,900 B
512 GB549,755,813,900 B
1,024 GB1,099,511,628,000 B

What is a gigabyte?

A gigabyte is 1,024 megabytes, or 1,073,741,824 bytes, under the binary convention.

What is a byte?

A byte is 8 bits, historically the space needed to store a single text character.

Frequently asked questions

How many bytes are in a gigabyte?

1 GB equals 1,073,741,824 bytes. Going the other way, 1 bytes is 9.313225746e-10 GB.

How do you convert GB to bytes?

To convert gigabytes to bytes, multiply the gigabyte value by 1073741824. You can also divide by 9.313225746e-10 to get the same answer.

What is 10 GB in bytes?

10 GB equals 10,737,418,240 bytes. The conversion chart on this page lists the other values people look up most often.

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Convert GB to other units

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