gb to bytes | Exact Decimal + Formula
1 Gigabyte = 1000000000 Byte
One gigabyte equals exactly a billion bytes. Real-world use: movies, games, phone storage, and broadband data caps. This page expresses those values in bytes, which is used for file sizes, memory capacity, and storage specifications. Because the difference in scale is so large, real-world figures usually pass through an intermediate unit first; the table below makes direct conversion easy to check. Type a value above for an instant answer; the exact formula and the reference table are below.
About Gigabyte and Byte
Gigabyte (GB)
A gigabyte (GB) is 1,000,000,000 bytes in decimal notation.
Where it's used: Movies, games, phone storage, and broadband data caps.
Byte (B)
A byte is 8 bits, the standard unit for file sizes.
Where it's used: File sizes, memory capacity, and storage specifications.
Advertisement
Data Storage Converter
Tab Switch fieldsS SwapC Copy
Formula
B = GB × 1.000000e+9
To convert Gigabyte to Byte, use the formula displayed above.
Pinned Favorites
No pinned converters yet. Click the star button to pin common pairs.
Recent History
Conversions you copy will be recorded here.
Advertisement
Gigabyte to Byte: Quick Reference Table
| Gigabyte | Byte (Decimal) | Fraction |
|---|---|---|
| 0.001 GB | 1000000 B | - |
| 0.01 GB | 10000000 B | - |
| 0.1 GB | 100000000 B | - |
| 0.5 GB | 500000000 B | - |
| 1 GB | 1000000000 B | - |
| 2 GB | 2000000000 B | - |
| 5 GB | 5000000000 B | - |
| 10 GB | 10000000000 B | - |
| 25 GB | 25000000000 B | - |
| 50 GB | 50000000000 B | - |
| 100 GB | 100000000000 B | - |
| 250 GB | 250000000000 B | - |
| 500 GB | 500000000000 B | - |
| 1000 GB | 1000000000000 B | - |
GB to B Formula and Examples
Direct Formula
B = GB × 1.000000e+9 Inverse Formula
GB = B × 1.0000e-9 Mental Math Shortcut
Multiply the value by roughly 1000000000 to calculate the equivalent amount in your head.
Common Gigabyte to Byte Calculations
- 5 GB = 5000000000 B
- 10 GB = 10000000000 B
- 50 GB = 50000000000 B
- 100 GB = 100000000000 B
- 500 GB = 500000000000 B
Precision & Practical Use
For example, 10 GB = 10000000000 B — roughly multiple unit increments.
Storage is sold in decimal units (1 GB = 1,000,000,000 bytes) but operating systems may report binary units (GiB). Our converter uses the decimal convention used by drive makers.
Advertisement
How to Convert Gigabyte to Byte
How many bytes are in one gigabyte?
One Gigabyte (GB) equals 1000000000 Byte (B). To convert gigabytes to bytes, multiply the gigabyte value by 1000000000.
How do I convert Gigabyte to Byte?
Multiply your gigabyte value by 1000000000 to get the result in Byte: B = GB × 1000000000. For example, 5 GB = 5000000000 B.
What is the formula for converting GB to B?
The conversion formula is B = GB × 1000000000. Use the calculator above for any value, and see the reference table below for common inputs from 0.001 to 1000.
Is there a quick mental estimate for GB to B?
Multiply the value by roughly 1000000000 to calculate the equivalent amount in your head.
Advertisement