How to convert gigabytes to bytes
Gigabytes and Bytes both measure data, so converting is a single multiplication. One GB equals 1,000,000,000 B, so you multiply your gigabytes value by 1,000,000,000.
Formula: bytes = gigabytes × 1,000,000,000. For example, 10 GB = 10,000,000,000 B.
Gigabytes to Bytes conversion table
| Gigabytes (GB) | Bytes (B) |
|---|---|
| 1 | 1,000,000,000 |
| 2 | 2,000,000,000 |
| 5 | 5,000,000,000 |
| 10 | 10,000,000,000 |
| 25 | 25,000,000,000 |
| 50 | 50,000,000,000 |
| 100 | 100,000,000,000 |
| 1,000 | 1.0000e+12 |
Gigabytes and Bytes explained
Gigabytes (GB): One billion bytes, used for videos, apps and storage.
Bytes (B): Eight bits, the basic unit for file sizes.
When you'd convert gigabytes to bytes
You'll convert gigabytes to bytes whenever a measurement is given in one unit but you need it in the other — comparing gigabytes and bytes figures across regions, following a recipe or spec, or double-checking a number. Because 1 GB is exactly 1,000,000,000 B, the result is precise every time.
Frequently asked questions
How many bytes are in a gigabyte?
One GB equals 1,000,000,000 B. Multiply your gigabytes figure by 1,000,000,000 to get bytes.
What is the formula to convert gigabytes to bytes?
bytes = gigabytes × 1,000,000,000. The factor 1,000,000,000 is exact.
What is 2 gigabytes in bytes?
2 GB = 2,000,000,000 B. You can enter any value in the converter above to get an instant result.
Is this Gigabytes to Bytes converter accurate?
Yes. It uses the standard conversion factor (1 GB = 1,000,000,000 B) defined by IEC 80000-13 — units of information (bit, byte), so results are exact to several decimal places.