Bytes to GB Converter
Type a value in bytes to see it in gigabytes as you type, with the exact formula and a reference chart.
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- Binary (1,024-based)
- 4 GiB
How this was calculated
- 1 gigabyte = 1,000,000,000 bytes
- 4,294,967,296 ÷ 1,000,000,000 = 4.2949673 GB
| B | GB |
|---|---|
| 1,000,000 B | 0.001 GB |
| 10,000,000 B | 0.01 GB |
| 100,000,000 B | 0.1 GB |
| 500,000,000 B | 0.5 GB |
| 1,000,000,000 B | 1 GB |
| 2,000,000,000 B | 2 GB |
| 4,000,000,000 B | 4 GB |
| 5,000,000,000 B | 5 GB |
| 10,000,000,000 B | 10 GB |
| 50,000,000,000 B | 50 GB |
| 100,000,000,000 B | 100 GB |
| GB | B |
|---|---|
| 0.001 GB | 1,000,000 B |
| 0.002 GB | 2,000,000 B |
| 0.005 GB | 5,000,000 B |
| 0.01 GB | 10,000,000 B |
| 0.02 GB | 20,000,000 B |
| 0.05 GB | 50,000,000 B |
| 0.1 GB | 100,000,000 B |
| 0.2 GB | 200,000,000 B |
| 0.5 GB | 500,000,000 B |
| 1 GB | 1,000,000,000 B |
| 2 GB | 2,000,000,000 B |
| 5 GB | 5,000,000,000 B |
How to convert bytes to gigabytes
1 byte = 1e-9 gigabytes. To convert bytes to gigabytes, divide by 1,000,000,000 (or multiply by 1e-9). A byte is 8 bits, the basic unit of file size. A gigabyte is 1,000,000,000 bytes under the SI definition (a gibibyte, GiB, is 1,073,741,824 bytes).
Worked examples
- 1,000,000,000 bytes = 1 GB (1,000,000,000 ÷ 1,000,000,000)
- 4,294,967,296 bytes = 4.29497 GB (4,294,967,296 ÷ 1,000,000,000)
- 64,000,000,000 bytes = 64 GB (64,000,000,000 ÷ 1,000,000,000)
Where this conversion comes up
Bytes are used for file sizes and network packets; gigabytes for phone storage, RAM, games and mobile data plans. Scripts, system tools and databases report sizes in raw bytes. One billion bytes is 1 GB (SI), but the same count looks smaller in Windows, which divides by 1,073,741,824: 4,294,967,296 bytes is 4.29 GB and exactly 4 GiB.
Quick estimate
Move the decimal point nine places left: 16,000,000,000 bytes = 16 GB.
Common mistakes
- Multiplying instead of dividing. A gigabyte is larger than a byte, so the number of gigabytes must come out smaller: 1,000,000,000 bytes = 1 GB.
- Mixing decimal and binary units. Drive makers and this page use 1,000-based (SI) units; Windows reports 1,024-based sizes, which is why a 1 TB drive shows as 931 GB. The result box shows both.
Related data converters: kb to mb, mb to kb, mb to gb, gb to mb, gb to tb, tb to gb.
Frequently asked questions
How do you convert bytes to gigabytes?
Multiply the bytes by 1e-9 (or divide by 1,000,000,000). For example, 4,294,967,296 bytes is 4.29497 gigabytes.
How many gigabytes are in one byte?
One byte is 1e-9 gigabytes. A byte is 8 bits, the basic unit of file size.
What is 64,000,000,000 bytes in gigabytes?
64,000,000,000 bytes is 64 gigabytes.
Is there a quick way to estimate bytes to gigabytes?
Move the decimal point nine places left: 16,000,000,000 bytes = 16 GB.