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.

100 gigabytes to bytes (100 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 100 GB to B

100 GB × 1000000000 = 100000000000 B

Values near 100 GB

gigabytes → bytes
GB	B
90	90000000000.0000
91	91000000000.0000
92	92000000000.0000
93	93000000000.0000
94	94000000000.0000
95	95000000000.0000
96	96000000000.0000
97	97000000000.0000
98	98000000000.0000
99	99000000000.0000
100	100000000000.0000
101	101000000000.0000
102	102000000000.0000
103	103000000000.0000
104	104000000000.0000
105	105000000000.0000
106	106000000000.0000
107	107000000000.0000
108	108000000000.0000
109	109000000000.0000
110	110000000000.0000

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.