Convert Gigabytes to Bytes
Convert Gigabytes to Bytes instantly. 1 Gigabyte (GB) equals 1,000,000,000 Bytes (B).
Gigabytes to Bytes conversion table
| Gigabytes (GB) | Bytes (B) |
|---|---|
| 1 GB | 1,000,000,000 B |
| 2 GB | 2,000,000,000 B |
| 3 GB | 3,000,000,000 B |
| 5 GB | 5,000,000,000 B |
| 10 GB | 10,000,000,000 B |
| 20 GB | 20,000,000,000 B |
| 50 GB | 50,000,000,000 B |
| 100 GB | 100,000,000,000 B |
| 500 GB | 500,000,000,000 B |
| 1,000 GB | 1,000,000,000,000 B |
1 Gigabyte = 1,000,000,000 Bytes · multiply Gigabytes by 1,000,000,000
About converting Gigabytes to Bytes
Gigabytes (GB) and Bytes (B) are both units of digital storage, so converting between them is a single multiplication: multiply your Gigabytes figure by 1,000,000,000. Ten Gigabytes comes to 10,000,000,000 Bytes, and a hundred works out at 100,000,000,000 Bytes.
Rule of thumb: going from Gigabytes to Bytes multiplies, so the figure always grows — one Gigabyte is already 1,000,000,000 Bytes. If your answer came out smaller, you have the conversion the wrong way round.
What is a Gigabyte?
A gigabyte is a billion bytes in SI terms, and it is the unit consumers actually shop in: phone storage, mobile data allowances, game downloads. It is also where the decimal-versus-binary split gets genuinely interesting, because the answer depends on the product. Drives and data plans are sold in decimal gigabytes; memory is not, and an "8 GB" RAM module really is 8 GiB, because memory is physically addressed in powers of two and could not be built in round decimal sizes. Windows then reports both using binary units labelled "GB".
What is a Byte?
The byte is the unit computers actually store things in, and it has not always been eight bits. Werner Buchholz coined the word at IBM in 1956, when a byte meant however many bits a particular machine needed to hold one character — six, seven and nine-bit bytes all existed. Eight bits became the standard with the IBM System/360, and the industry never looked back. Because that old ambiguity was real, networking standards still say "octet" when they want to be unmistakable about meaning exactly eight bits.
To put both in perspective: an hour of HD streaming video runs to a few gigabytes, while a byte holds a single letter of plain text.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Bytes to Gigabytes converter, or browse all Digital Storage converters.
Frequently asked questions
How many Bytes are in one Gigabyte?
There are 1,000,000,000 Bytes in one Gigabyte.
How do I convert Gigabytes to Bytes?
Multiply the number of Gigabytes by 1,000,000,000. For example, 10 Gigabytes = 10,000,000,000 Bytes.
What is 100 Gigabytes in Bytes?
100 Gigabytes is equal to 100,000,000,000 Bytes.
How do I convert Bytes to Gigabytes?
Multiply the Bytes value by 0.000000001 (or divide by 1,000,000,000).
Is this Gigabytes to Bytes conversion exact?
Yes, exactly. Both units are fixed against the same base by definition, and 1 Gigabyte = 1,000,000,000 Bytes is the complete value — nothing is rounded away.
What is a Gigabyte?
A gigabyte is a billion bytes in SI terms, and it is the unit consumers actually shop in: phone storage, mobile data allowances, game downloads. It is also where the decimal-versus-binary split gets genuinely interesting, because the answer depends on the product. Drives and data plans are sold in decimal gigabytes; memory is not, and an "8 GB" RAM module really is 8 GiB, because memory is physically addressed in powers of two and could not be built in round decimal sizes. Windows then reports both using binary units labelled "GB".
What is a Byte?
The byte is the unit computers actually store things in, and it has not always been eight bits. Werner Buchholz coined the word at IBM in 1956, when a byte meant however many bits a particular machine needed to hold one character — six, seven and nine-bit bytes all existed. Eight bits became the standard with the IBM System/360, and the industry never looked back. Because that old ambiguity was real, networking standards still say "octet" when they want to be unmistakable about meaning exactly eight bits.