Convert Bytes to Gigabytes (B to GB)
1 byte (B) = 1 × 10⁻⁹ gigabytes (GB). 1 GB = 1000000000 B. Example: 15 B = 15 × 1 × 10⁻⁹ = 1.5 × 10⁻⁸ GB.
Also searched as bytes to GB, bytes in GB, bytes into gigabytes, B to GB, B in gigabytes, B into gigabyte, byte to gigabyte, B to gigabytes converter and how many gigabytes in a byte.
1 B = 1e-9 GB
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk byte to gigabyte converter to paste a column from Excel.
How to Convert Byte to Gigabyte
- 1 B = 1 × 10⁻⁹ GB
- 1 GB = 1000000000 B
- Example: convert 15 B to GB: 15 B = 15 × 1 × 10⁻⁹ GB = 1.5 × 10⁻⁸ GB
Formula
GB = B ÷ 1000000000
Derivation from SI units:
- 1 byte = 8 bits (an octet).
- 1 GB = 10⁹ bytes = 8 × 10⁹ bits (decimal, SI).
- 1 B = 8 bit ÷ 8000000000 bit per GB = 1 × 10⁻⁹ GB
Both units are defined exactly, so the factor is exact. Byte definition: byte; Gigabyte definition: gigabyte.
Worked examples
- A reading of 512 B converts to 5.12 × 10⁻⁷ GB.
512 B × 1 × 10⁻⁹ = 5.12 × 10⁻⁷ GB - A value of 4096 B is 0.000004096 GB.
4096 B × 1 × 10⁻⁹ = 0.000004096 GB
Byte to Gigabyte conversion table
| Bytes (B) | Gigabytes (GB) |
|---|---|
| 1 B | 1 × 10⁻⁹ GB |
| 8 B | 8 × 10⁻⁹ GB |
| 64 B | 6.4 × 10⁻⁸ GB |
| 512 B | 5.12 × 10⁻⁷ GB |
| 1000 B | 0.000001 GB |
| 1024 B | 0.000001024 GB |
| 4096 B | 0.000004096 GB |
| 65536 B | 0.000065536 GB |
| 1000000 B | 0.001 GB |
| 1048576 B | 0.001048576 GB |
Where it's used
Bytes are used for file and memory sizes, while gigabytes appear in phone and laptop storage. Both measure amount of digital information, so the conversion is a fixed factor.
Byte to other data storage units
| Conversion | 1 B equals |
|---|---|
| byte to gigabyte | 1 × 10⁻⁹ GB |
| byte to kilobyte | 0.001 kB |
| byte to megabyte | 0.000001 MB |
| byte to terabyte | 1 × 10⁻¹² TB |
| byte to bit | 8 bit |
| byte to megabit | 0.000008 Mbit |
| byte to kibibyte | 0.0009765625 KiB |
| byte to mebibyte | 9.536743164 × 10⁻⁷ MiB |
Show 5 more units
| byte to gibibyte | 9.313225746 × 10⁻¹⁰ GiB |
|---|---|
| byte to kilobit | 0.008 kbit |
| byte to gigabit | 8 × 10⁻⁹ Gbit |
| byte to petabyte | 1 × 10⁻¹⁵ PB |
| byte to tebibyte | 9.094947018 × 10⁻¹³ TiB |
Frequently asked questions
How many gigabytes are in 1 byte?
1 B = 1 × 10⁻⁹ GB.
How do I convert bytes to gigabytes?
Multiply the value in B by 1 × 10⁻⁹, or divide it by 1000000000. For example, 15 B × 1 × 10⁻⁹ = 1.5 × 10⁻⁸ GB.
Is the B to GB conversion exact?
Yes. Both units are defined exactly, and 1 B is exactly 1 × 10⁻⁹ GB.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Bytes to Gigabytes (B to GB). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/bytes-to-gigabytes/
IEEE
Scientific Converters, "Convert Bytes to Gigabytes (B to GB)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/bytes-to-gigabytes/