How many bytes are in 1 gigabyte?

1 gigabyte equals 1000000000 B.

How do I convert bytes back to gigabytes?

Use the reverse converter: 1 byte equals 1e-9 GB.

Is this converter accurate?

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

2 gigabytes to bytes (2 GB to B)

Open the full gigabytes to bytes converter

Formula

To convert gigabytes to bytes, multiply the value by 1000000000.

B = GB × 1000000000

How to convert 2 GB to B

2 GB × 1000000000 = 2000000000 B

Values near 2 GB

gigabytes → bytes
GB	B
1	1000000000.0000
2	2000000000.0000
3	3000000000.0000
4	4000000000.0000
5	5000000000.0000
6	6000000000.0000
7	7000000000.0000
8	8000000000.0000
9	9000000000.0000
10	10000000000.0000
11	11000000000.0000
12	12000000000.0000
13	13000000000.0000
14	14000000000.0000
15	15000000000.0000
16	16000000000.0000
17	17000000000.0000
18	18000000000.0000
19	19000000000.0000
20	20000000000.0000
21	21000000000.0000

Decimal vs binary: KB, MB and GB use powers of 1,000 (SI), while KiB, MiB and GiB use powers of 1,024. Storage makers use decimal units; many operating systems and memory sizes use binary ones, which is why a "500 GB" drive shows less space.

About the units

Gigabyte (GB): 1,000,000,000 bytes in the decimal system, used for drive capacity and data plans.
Byte (B): Eight bits, the basic unit of computer storage and the size of one character in many encodings.

Frequently asked questions

How do I convert gigabytes to bytes?: To convert gigabytes to bytes, multiply the value by 1000000000.
How many bytes are in 1 gigabyte?: 1 gigabyte equals 1000000000 B.
How many bytes are in 10 gigabytes?: 10 GB equals 10000000000 B.
How do I convert bytes back to gigabytes?: Use the reverse converter: 1 byte equals 1e-9 GB.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.