1 GB = 1,000,000,000 B
Gigabytes (GB) to Bytes (B) Converter
The Gigabytes (GB) to Bytes (B) Converter turns your Gigabyte (GB) value into Bytes (B). Type your storage value below — 1 GB = 1,000,000,000 B, calculated across both decimal (SI) and binary (IEC) standards. This free gigabyte to byte calculator doubles as a digital storage converter, file size converter, and data capacity calculator for accurate unit conversion. Also see: Terabits to Terabytes.
Gigabyte (GB)
A gigabyte is 1,000 megabytes or 1,000,000,000 bytes using the SI decimal standard. This is what hard drive manufacturers typically use.
View the gigabyte data unit pageByte (B)
A byte consists of 8 bits and is the standard unit for measuring digital storage. One byte can represent 256 different values (0-255).
View the byte data unit pageHow to Convert Gigabytes to Bytes
To convert gigabytes to bytes, multiply by 1,000,000,000. This gives you the equivalent storage size in the target unit.
GB: A gigabyte is 1,000 megabytes or 1,000,000,000 bytes using the SI decimal standard. This is what hard drive manufacturers typically use.
B: A byte consists of 8 bits and is the standard unit for measuring digital storage. One byte can represent 256 different values (0-255). Related: Megabytes to Zebibits.
1 GB = 1,000,000,000 B (using SI decimal standard) — which means there are 1,000,000,000bytes in every gigabyte.
GB to B conversion rate: 1 gigabyte equals 1,000,000,000bytes — the standard gigabyte to byte data storage conversion used by this calculator.
Quick Facts: GB to B Storage Conversion
- Conversion factor: 1 GB = 1,000,000,000 B (SI decimal)
- Reverse factor: 1 B = 0.000000001 GB
- Source unit type: SI decimal storage unit
- Target unit type: fundamental storage unit
- Category: data storage converter, digital capacity calculator
Steps to Convert Gigabyte to Byte
- Enter your gigabyte value (GB) into the gigabyte to byte converter above.
- The equivalent bytes (B) value updates instantly using the GB to B conversion factor.
- Use the swap control to reverse the calculation and convert bytes back into gigabytes.
GB to B Conversion Formula
Here's the exact GB to B formula in copy-paste-ready form — multiply by 1,000,000,000 to go from gigabytes to bytes, or by 0.000000001 to reverse it — followed by a quick-reference chart of the same conversion.
// Convert GB to B
B = GB × 1,000,000,000
// Reverse: Convert B to GB
GB = B × 0.000000001
Gigabyte to Byte Conversion Examples
100 GB = 100,000,000,000 B
256 GB = 256,000,000,000 B
500 GB = 500,000,000,000 B
1,000 GB = 1,000,000,000,000 B
2,048 GB = 2,048,000,000,000 B
What Is a Gigabyte (GB)? Definition and Uses
A gigabyte is 1,000 megabytes or 1,000,000,000 bytes using the SI decimal standard. This is what hard drive manufacturers typically use.
The gigabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard.
Common uses: Movies, video games, smartphone storage, USB drives, cloud storage plans
1 GB = 8 × 10⁹ bits = 1 × 10⁹ bytes.
The gigabyte can be abbreviated as GB; for example, 1 gigabyte can be written as 1 GB.
Gigabyte Storage Unit at a Glance
| Unit type | SI decimal |
|---|---|
| Base / standard | Base 1,000 — SI (International System of Units) |
| Symbol | GB |
| Common uses | Movies, video games, smartphone storage, USB drives, cloud storage plans |
What Is a Byte (B)? Definition and Uses
A byte consists of 8 bits and is the standard unit for measuring digital storage. One byte can represent 256 different values (0-255).
The byte is a fundamental unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard.
Common uses: File sizes, memory addressing, character encoding (ASCII, UTF-8)
1 B = 8 bits = 1 bytes.
The byte can be abbreviated as B; for example, 1 byte can be written as 1 B.
Byte Storage Unit at a Glance
| Unit type | fundamental |
|---|---|
| Base / standard | Base 1,000 — SI (International System of Units) |
| Symbol | B |
| Common uses | File sizes, memory addressing, character encoding (ASCII, UTF-8) |
Gigabyte to Byte Conversion Table
The table below shows 100 gigabyte measurements converted to bytes — scroll within the table to see the full range.
| Gigabytes | Bytes |
|---|---|
| 1 GB | 1,000,000,000 B |
| 13 GB | 13,000,000,000 B |
| 26 GB | 26,000,000,000 B |
| 39 GB | 39,000,000,000 B |
| 52 GB | 52,000,000,000 B |
| 65 GB | 65,000,000,000 B |
| 78 GB | 78,000,000,000 B |
| 91 GB | 91,000,000,000 B |
| 104 GB | 104,000,000,000 B |
| 117 GB | 117,000,000,000 B |
| 130 GB | 130,000,000,000 B |
| 143 GB | 143,000,000,000 B |
| 156 GB | 156,000,000,000 B |
| 169 GB | 169,000,000,000 B |
| 182 GB | 182,000,000,000 B |
| 195 GB | 195,000,000,000 B |
| 208 GB | 208,000,000,000 B |
| 221 GB | 221,000,000,000 B |
| 234 GB | 234,000,000,000 B |
| 247 GB | 247,000,000,000 B |
| 260 GB | 260,000,000,000 B |
| 273 GB | 273,000,000,000 B |
| 286 GB | 286,000,000,000 B |
| 299 GB | 299,000,000,000 B |
| 312 GB | 312,000,000,000 B |
| 325 GB | 325,000,000,000 B |
| 338 GB | 338,000,000,000 B |
| 351 GB | 351,000,000,000 B |
| 364 GB | 364,000,000,000 B |
| 377 GB | 377,000,000,000 B |
| 390 GB | 390,000,000,000 B |
| 403 GB | 403,000,000,000 B |
| 416 GB | 416,000,000,000 B |
| 429 GB | 429,000,000,000 B |
| 442 GB | 442,000,000,000 B |
| 455 GB | 455,000,000,000 B |
| 468 GB | 468,000,000,000 B |
| 481 GB | 481,000,000,000 B |
| 494 GB | 494,000,000,000 B |
| 507 GB | 507,000,000,000 B |
| 520 GB | 520,000,000,000 B |
| 533 GB | 533,000,000,000 B |
| 546 GB | 546,000,000,000 B |
| 559 GB | 559,000,000,000 B |
| 572 GB | 572,000,000,000 B |
| 585 GB | 585,000,000,000 B |
| 598 GB | 598,000,000,000 B |
| 611 GB | 611,000,000,000 B |
| 624 GB | 624,000,000,000 B |
| 637 GB | 637,000,000,000 B |
| 650 GB | 650,000,000,000 B |
| 663 GB | 663,000,000,000 B |
| 676 GB | 676,000,000,000 B |
| 689 GB | 689,000,000,000 B |
| 702 GB | 702,000,000,000 B |
| 715 GB | 715,000,000,000 B |
| 728 GB | 728,000,000,000 B |
| 741 GB | 741,000,000,000 B |
| 754 GB | 754,000,000,000 B |
| 767 GB | 767,000,000,000 B |
| 780 GB | 780,000,000,000 B |
| 793 GB | 793,000,000,000 B |
| 806 GB | 806,000,000,000 B |
| 819 GB | 819,000,000,000 B |
| 832 GB | 832,000,000,000 B |
| 845 GB | 845,000,000,000 B |
| 858 GB | 858,000,000,000 B |
| 871 GB | 871,000,000,000 B |
| 884 GB | 884,000,000,000 B |
| 897 GB | 897,000,000,000 B |
| 910 GB | 910,000,000,000 B |
| 923 GB | 923,000,000,000 B |
| 936 GB | 936,000,000,000 B |
| 949 GB | 949,000,000,000 B |
| 962 GB | 962,000,000,000 B |
| 975 GB | 975,000,000,000 B |
| 988 GB | 988,000,000,000 B |
| 1,001 GB | 1,001,000,000,000 B |
| 1,014 GB | 1,014,000,000,000 B |
| 1,027 GB | 1,027,000,000,000 B |
| 1,040 GB | 1,040,000,000,000 B |
| 1,053 GB | 1,053,000,000,000 B |
| 1,066 GB | 1,066,000,000,000 B |
| 1,079 GB | 1,079,000,000,000 B |
| 1,092 GB | 1,092,000,000,000 B |
| 1,105 GB | 1,105,000,000,000 B |
| 1,118 GB | 1,118,000,000,000 B |
| 1,131 GB | 1,131,000,000,000 B |
| 1,144 GB | 1,144,000,000,000 B |
| 1,157 GB | 1,157,000,000,000 B |
| 1,170 GB | 1,170,000,000,000 B |
| 1,183 GB | 1,183,000,000,000 B |
| 1,196 GB | 1,196,000,000,000 B |
| 1,209 GB | 1,209,000,000,000 B |
| 1,222 GB | 1,222,000,000,000 B |
| 1,235 GB | 1,235,000,000,000 B |
| 1,248 GB | 1,248,000,000,000 B |
| 1,261 GB | 1,261,000,000,000 B |
| 1,274 GB | 1,274,000,000,000 B |
| 1,287 GB | 1,287,000,000,000 B |
SI Decimal vs Binary: Why Two Different Standards?
When converting gigabytes to bytes, different tools may give slightly different results. This is because there are two competing standards for measuring digital storage:
| Standard | Base | 1 KB equals | Used By |
|---|---|---|---|
| SI Decimal | 1000 | 1,000 bytes | Hard drive manufacturers, macOS, network speeds |
| Binary (IEC) | 1024 | 1,024 bytes | Windows, Linux (partially), RAM specifications |
Note: Our calculator defaults to SI decimal (base 1000) to match the box label. To match Windows, toggle the standard above the converter.
FAQs: Gigabyte to Byte Conversion
How many bytes are in 1 gigabyte?
1 Gigabyte (GB) equals 1,000,000,000 Bytes using the SI decimal standard.
How do I convert gigabytes to bytes?
Multiply the gigabyte value by 1,000,000,000 to get bytes. For example, 10 GB = 10,000,000,000 B.
Is a gigabyte bigger than a byte?
Yes. 1 GB = 1,000,000,000 B, so the gigabyte is the larger data storage unit.
What is Gigabyte (GB) commonly used for?
Movies, video games, smartphone storage, USB drives, cloud storage plans.