Gigabytes to bytes converter
Bytes (B)
1 gigabyte = 1,000,000,000 bytes
How to convert gigabytes to bytes
B = GB × 1000000000
Multiply the number of gigabytes by 1000000000 to get bytes. Going the other way, divide by 1000000000 (or multiply by 1 × 10^-9).
One gigabyte is exactly defined as 1000000000 bytes (to 12 significant figures), and one byte is 1 × 10^-9 gigabytes.
Worked examples
- Convert 5 gigabytes: 5 × 1000000000 = 5,000,000,000 5,000,000,000 bytes.
- Convert 12.5 gigabytes: 12.5 × 1000000000 = 12,500,000,000 12,500,000,000 bytes.
- Convert 250 gigabytes: 250 × 1000000000 = 250,000,000,000 250,000,000,000 bytes.
Quick-reference table
| GB | B |
|---|---|
| 1 | 1,000,000,000 |
| 2 | 2,000,000,000 |
| 3 | 3,000,000,000 |
| 5 | 5,000,000,000 |
| 10 | 10,000,000,000 |
| 15 | 15,000,000,000 |
| 20 | 20,000,000,000 |
| 25 | 25,000,000,000 |
| 50 | 50,000,000,000 |
| 75 | 75,000,000,000 |
| 100 | 100,000,000,000 |
| 1,000 | 1,000,000,000,000 |
| B | GB |
|---|---|
| 1 | 1e-9 |
| 2 | 2e-9 |
| 3 | 3e-9 |
| 5 | 5e-9 |
| 10 | 1e-8 |
| 15 | 1.5e-8 |
| 20 | 2e-8 |
| 25 | 2.5e-8 |
| 50 | 5e-8 |
| 75 | 7.5e-8 |
| 100 | 1e-7 |
| 1,000 | 0.000001 |
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Frequently asked questions
How many bytes are in 1 gigabyte?
1 gigabyte equals 1,000,000,000 bytes.
What is the formula to convert gigabytes to bytes?
Use B = GB × 1000000000. Multiply the number of gigabytes by 1000000000 to get bytes. Going the other way, divide by 1000000000 (or multiply by 1 × 10^-9).
What is 100 gigabytes in bytes?
100 gigabytes is 100,000,000,000 bytes.