Gb to Bytes ConverterRight in Your Browser
Convert gigabytes (GB) to bytes (B). The gigabyte (GB) is 1,000 megabytes — the scale of phone storage, video files and data plans. The byte (B) is 8 bits — the fundamental unit of file size, memory and storage on every computer. Everything is calculated locally in your browser — no server, and it works offline.
1000000000 B
in bytes (byte)
To convert gigabytes to bytes, multiply the gigabyte value by 1000000000.
Switch to Bytes to GbGb to Bytes Chart
| Gigabytes (GB) | Bytes (B) |
|---|---|
| 1 | 1000000000 |
| 2 | 2000000000 |
| 3 | 3000000000 |
| 4 | 4000000000 |
| 5 | 5000000000 |
| 10 | 10000000000 |
| 20 | 20000000000 |
| 50 | 50000000000 |
| 100 | 100000000000 |
Frequently Asked Questions
How many bytes are in a gigabyte?
One gigabyte equals 1000000000 bytes (1 GB = 1000000000 B). So to go from gigabytes to bytes, multiply the gigabyte value by 1000000000.
What is the formula to convert gigabytes to bytes?
To convert gigabytes to bytes, multiply the gigabyte value by 1000000000. For example, 10 GB is 10000000000 B.
What is 256 gigabytes in bytes?
256 gigabytes — a common phone storage size — is 256000000000 bytes. The converter above works for any value, entirely in your browser.
Is the gigabyte to byte conversion exact?
The factor used here is the defined value: 1 GB = 1000000000 B. Results are rounded to six significant digits for readability, so for high-precision work use the full factor. This converter uses decimal (SI) units — 1 GB = 1,000 MB — the convention drive makers and data plans use. Windows reports binary gibibytes (1 GiB = 1,024 MiB), which is why a "500 GB" drive shows as about 465 GB there.
Every conversion runs 100% in your browser — zero files uploaded, ever.
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