Convert Gigabytes to Bytes
GB to B · digital storage conversion
What are gigabytes and bytes?
A gigabyte is one billion bytes, about a quarter-hour of HD video. A byte is 8 bits, enough to store one character of text. For scale: a photo is a few MB, an HD movie a few GB, and a modern drive holds 1 TB or more. These use decimal (1 KB = 1,000 bytes).
How to convert gigabytes to bytes
1 GB = 1,000,000,000 B. To convert, multiply the number of gigabytes by 1,000,000,000. For example, 5 GB = 5,000,000,000 B, and 20 GB = 20,000,000,000 B. To go the other way, multiply bytes by 1.0000e-9 (since 1 B = 1.0000e-9 GB).
Gigabytes to Bytes conversion table
| Gigabytes (GB) | Bytes (B) |
|---|---|
| 1 | 1,000,000,000 |
| 8 | 8,000,000,000 |
| 16 | 16,000,000,000 |
| 64 | 64,000,000,000 |
| 128 | 128,000,000,000 |
| 500 | 500,000,000,000 |
| 1,000 | 1,000,000,000,000 |
FAQ
What is 1 GB in B?
1 GB = 1,000,000,000 B. To convert any amount, multiply the number of gigabytes by 1,000,000,000.
How do I convert bytes back to gigabytes?
Go the other way: 1 B = 1.0000e-9 GB, so multiply bytes by 1.0000e-9 to get gigabytes.
Is a gigabyte bigger than a byte?
Yes — 1 GB is the larger unit, equal to 1,000,000,000 B.
Are these digital storage conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.