Gigabytes to bytes – convert GB to B
Convert gigabytes to bytes (GB to B) to see the exact byte counts behind storage sizes, logs and datasets. This page uses decimal gigabytes where 1 GB = 1,000,000,000 bytes.
Open the interactive GB → B converter:
Use main converter (GB → B) or switch to B → GBThe same converter can also handle KB, MB, GB and TB so you can move quickly between different storage scales.
Quick reference: GB to bytes
One gigabyte equals 1,000,000,000 bytes. So: bytes = GB × 1,000,000,000. Examples:
| Gigabytes (GB) | Bytes (B, decimal) |
|---|---|
| 0.1 GB | 100,000,000 B |
| 0.5 GB | 500,000,000 B |
| 1 GB | 1,000,000,000 B |
| 5 GB | 5,000,000,000 B |
| 10 GB | 10,000,000,000 B |
| 50 GB | 50,000,000,000 B |
Why convert gigabytes to bytes?
GB to B is useful when you:
- Match byte counts in logs or APIs with human-readable GB values.
- Estimate how many files will fit within a storage or backup limit.
- Compare database sizes, object storage bills or big data pipelines.
- Explain storage overheads and capacity planning in precise terms.
Other data converters on this site
Remember that operating systems may show GiB instead of GB, which is why your drive capacity can look a bit smaller than the number on the box.
Page last updated: 4 December 2025.