1 GB = 0.008 Tb
Gigabytes to Terabits Converter: GB to Tb Conversion Calculator
To convert gigabytes to terabits (GB to Tb), enter your gigabyte value below and click the Convert button. Your terabit result also updates automatically as you type, using SI decimal prefixes (1,000 per step) and converting between bits and bytes. This free GB to Tb converter and conversion calculator also works vice versa: use Swap units to convert the other way, or Reset to start over. Also see: Bytes to Kibibytes.
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 pageTerabit (Tb)
A terabit is 1,000 gigabits or 10^12 bits. Used for backbone network and data center connections.
View the terabit data unit pageHow to Convert Gigabytes to Terabits
To convert gigabytes to terabits, multiply by 8 then adjust for scale. This converts byte-based storage measurements to bit-based units.
GB is a byte-based unit used for measuring file sizes and storage capacity.
Tb is a bit-based unit—multiply bytes by 8 to get bits. Related: Gigabytes to Petabits.
1 GB = 0.008 Tb (using SI decimal standard) — or equivalently, 1 Tb = 125GB.
GB to Tb conversion rate: 1 gigabyte equals 0.008terabits — the standard gigabyte to terabit data storage conversion used by this calculator.
Quick Facts: GB to Tb Storage Conversion
- Conversion factor: 1 GB = 0.008 Tb (SI decimal)
- Reverse factor: 1 Tb = 125 GB
- Source unit type: SI decimal storage unit
- Target unit type: SI decimal bit storage unit
- Category: data storage converter, digital capacity calculator
Steps to Convert Gigabyte to Terabit
- Enter your gigabyte value (GB) into the gigabyte to terabit converter above.
- The equivalent terabits (Tb) value updates instantly using the GB to Tb conversion factor; click the Convert button to recalculate it manually.
- Use the swap control to reverse the calculation and convert terabits back into gigabytes.
GB to Tb Conversion Formula
Here's the exact GB to Tb formula in copy-paste-ready form — multiply by 0.008 to go from gigabytes to terabits, or by 125 to reverse it — followed by a quick-reference chart of the same conversion.
// Convert GB to Tb
Tb = GB × 0.008
// Reverse: Convert Tb to GB
GB = Tb × 125
Gigabyte to Terabit Conversion Examples
100 GB = 0.8 Tb
256 GB = 2.048 Tb
500 GB = 4 Tb
1,000 GB = 8 Tb
2,048 GB = 16.384 Tb
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 See also: Gigabytes to Megabytes.
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 Terabit (Tb)? Definition and Uses
A terabit is 1,000 gigabits or 10^12 bits. Used for backbone network and data center connections.
The terabit is a SI decimal bit unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard.
Common uses: Data center interconnects, backbone networks, high-capacity optical links
1 Tb = 1 × 10¹² bits = 125 × 10⁹ bytes.
The terabit can be abbreviated as Tb; for example, 1 terabit can be written as 1 Tb.
Terabit Storage Unit at a Glance
| Unit type | SI decimal bit |
|---|---|
| Base / standard | Base 1,000 — SI (International System of Units) |
| Symbol | Tb |
| Common uses | Data center interconnects, backbone networks, high-capacity optical links |
Gigabyte to Terabit Conversion Table
The table below shows 100 gigabyte measurements converted to terabits — scroll within the table to see the full range.
| Gigabytes | Terabits |
|---|---|
| 1 GB | 0.008 Tb |
| 13 GB | 0.104 Tb |
| 26 GB | 0.208 Tb |
| 39 GB | 0.312 Tb |
| 52 GB | 0.416 Tb |
| 65 GB | 0.52 Tb |
| 78 GB | 0.624 Tb |
| 91 GB | 0.728 Tb |
| 104 GB | 0.832 Tb |
| 117 GB | 0.936 Tb |
| 130 GB | 1.04 Tb |
| 143 GB | 1.144 Tb |
| 156 GB | 1.248 Tb |
| 169 GB | 1.352 Tb |
| 182 GB | 1.456 Tb |
| 195 GB | 1.56 Tb |
| 208 GB | 1.664 Tb |
| 221 GB | 1.768 Tb |
| 234 GB | 1.872 Tb |
| 247 GB | 1.976 Tb |
| 260 GB | 2.08 Tb |
| 273 GB | 2.184 Tb |
| 286 GB | 2.288 Tb |
| 299 GB | 2.392 Tb |
| 312 GB | 2.496 Tb |
| 325 GB | 2.6 Tb |
| 338 GB | 2.704 Tb |
| 351 GB | 2.808 Tb |
| 364 GB | 2.912 Tb |
| 377 GB | 3.016 Tb |
| 390 GB | 3.12 Tb |
| 403 GB | 3.224 Tb |
| 416 GB | 3.328 Tb |
| 429 GB | 3.432 Tb |
| 442 GB | 3.536 Tb |
| 455 GB | 3.64 Tb |
| 468 GB | 3.744 Tb |
| 481 GB | 3.848 Tb |
| 494 GB | 3.952 Tb |
| 507 GB | 4.056 Tb |
| 520 GB | 4.16 Tb |
| 533 GB | 4.264 Tb |
| 546 GB | 4.368 Tb |
| 559 GB | 4.472 Tb |
| 572 GB | 4.576 Tb |
| 585 GB | 4.68 Tb |
| 598 GB | 4.784 Tb |
| 611 GB | 4.888 Tb |
| 624 GB | 4.992 Tb |
| 637 GB | 5.096 Tb |
| 650 GB | 5.2 Tb |
| 663 GB | 5.304 Tb |
| 676 GB | 5.408 Tb |
| 689 GB | 5.512 Tb |
| 702 GB | 5.616 Tb |
| 715 GB | 5.72 Tb |
| 728 GB | 5.824 Tb |
| 741 GB | 5.928 Tb |
| 754 GB | 6.032 Tb |
| 767 GB | 6.136 Tb |
| 780 GB | 6.24 Tb |
| 793 GB | 6.344 Tb |
| 806 GB | 6.448 Tb |
| 819 GB | 6.552 Tb |
| 832 GB | 6.656 Tb |
| 845 GB | 6.76 Tb |
| 858 GB | 6.864 Tb |
| 871 GB | 6.968 Tb |
| 884 GB | 7.072 Tb |
| 897 GB | 7.176 Tb |
| 910 GB | 7.28 Tb |
| 923 GB | 7.384 Tb |
| 936 GB | 7.488 Tb |
| 949 GB | 7.592 Tb |
| 962 GB | 7.696 Tb |
| 975 GB | 7.8 Tb |
| 988 GB | 7.904 Tb |
| 1,001 GB | 8.008 Tb |
| 1,014 GB | 8.112 Tb |
| 1,027 GB | 8.216 Tb |
| 1,040 GB | 8.32 Tb |
| 1,053 GB | 8.424 Tb |
| 1,066 GB | 8.528 Tb |
| 1,079 GB | 8.632 Tb |
| 1,092 GB | 8.736 Tb |
| 1,105 GB | 8.84 Tb |
| 1,118 GB | 8.944 Tb |
| 1,131 GB | 9.048 Tb |
| 1,144 GB | 9.152 Tb |
| 1,157 GB | 9.256 Tb |
| 1,170 GB | 9.36 Tb |
| 1,183 GB | 9.464 Tb |
| 1,196 GB | 9.568 Tb |
| 1,209 GB | 9.672 Tb |
| 1,222 GB | 9.776 Tb |
| 1,235 GB | 9.88 Tb |
| 1,248 GB | 9.984 Tb |
| 1,261 GB | 10.088 Tb |
| 1,274 GB | 10.192 Tb |
| 1,287 GB | 10.296 Tb |
SI Decimal Prefixes: How GB to Tb Is Calculated
Both gigabytes and terabits are SI decimal units, so every prefix step is exactly 1,000 and 1 GB = 0.008 Tb. This is the convention behind advertised link speeds and drive specifications. Because one unit counts bits and the other bytes, the factor also includes a factor of 8.
| Unit | Standard | Prefix step | 1 unit equals |
|---|---|---|---|
| Gigabyte (GB) | SI decimal | 1,000 | 8,000,000,000 bits |
| Terabit (Tb) | SI decimal | 1,000 | 1,000,000,000,000 bits |
Want the binary (IEC) version? See GiB to Tib.
FAQs: Gigabyte to Terabit Conversion
6 questions Quick answers on converting gigabytes to terabits, using the same factors as the converter above.
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How many terabits are in 1 gigabyte?
1 GB = 0.008 Tb
1 Gigabyte (GB) equals 0.008 Terabits using the SI decimal standard.
-
How many gigabytes are in 1 terabit?
1 Tb = 125 GB
1 Terabit (Tb) equals 125 Gigabytes.
-
How do I convert gigabytes to terabits?
GB × 0.008 = Tb
Multiply the gigabyte value by 0.008 to get terabits. For example, 10 GB = 0.08 Tb. To convert back (vice versa), multiply terabits by 125.
-
Is a gigabyte bigger than a terabit?
Tb is 125× larger than GB
No. 1 GB = 0.008 Tb, so the terabit is larger — 1 Tb = 125 GB.
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Does GB to Tb use SI decimal or binary prefixes?
Base 10 (SI): 1,000 per step
Both gigabytes and terabits are SI decimal (base 10) units, so each prefix step is exactly 1,000, giving 1 GB = 0.008 Tb. Because one unit counts bits and the other bytes, the factor also includes a factor of 8. The binary (IEC) versions count in base 2 steps of 1,024 instead.
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What is Gigabyte (GB) commonly used for?
Common uses of the gigabyte (GB) include: Movies, video games, smartphone storage, USB drives, cloud storage plans.
Need another value? Use the GB to Tb converter or convert Tb to GB.