1 TB = 1,000 GB
Terabytes (TB) to Gigabytes (GB) Converter
The Terabytes (TB) to Gigabytes (GB) Converter turns your Terabyte (TB) value into Gigabytes (GB). Type your storage value below — 1 TB = 1,000 GB, calculated across both decimal (SI) and binary (IEC) standards. This free terabyte to gigabyte calculator doubles as a digital storage converter, file size converter, and data capacity calculator for accurate unit conversion. Also see: Kilobits to Gigabits.
Terabyte (TB)
A terabyte is 1,000 gigabytes or 1,000,000,000,000 bytes. Common size for modern hard drives and SSDs.
View the terabyte data unit pageGigabyte (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 pageHow to Convert Terabytes to Gigabytes
To convert terabytes to gigabytes, multiply by 1,000 (using SI decimal). Both units measure storage capacity—the difference is scale.
TB: A terabyte is 1,000 gigabytes or 1,000,000,000,000 bytes. Common size for modern hard drives and SSDs.
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. Related: Terabytes to Megabytes.
1 TB = 1,000 GB (using SI decimal standard) — which means there are 1,000gigabytes in every terabyte.
TB to GB conversion rate: 1 terabyte equals 1,000gigabytes — the standard terabyte to gigabyte data storage conversion used by this calculator.
Quick Facts: TB to GB Storage Conversion
- Conversion factor: 1 TB = 1,000 GB (SI decimal)
- Reverse factor: 1 GB = 0.001 TB
- Source unit type: SI decimal storage unit
- Target unit type: SI decimal storage unit
- Binary (IEC) factor: 1 TB = 1,024 GB
- Category: data storage converter, digital capacity calculator
Steps to Convert Terabyte to Gigabyte
- Enter your terabyte value (TB) into the terabyte to gigabyte converter above.
- The equivalent gigabytes (GB) value updates instantly using the TB to GB conversion factor.
- Toggle between the SI decimal (÷1000) and binary IEC (÷1024) standards for Windows-style storage capacity results.
- Use the swap control to reverse the calculation and convert gigabytes back into terabytes.
TB to GB Conversion Formula
Here's the exact TB to GB formula in copy-paste-ready form — multiply by 1,000 to go from terabytes to gigabytes, or by 0.001 to reverse it — followed by a quick-reference chart of the same conversion.
// Convert TB to GB
GB = TB × 1,000
// Reverse: Convert GB to TB
TB = GB × 0.001
Terabyte to Gigabyte Conversion Examples
100 TB = 100,000 GB
256 TB = 256,000 GB
500 TB = 500,000 GB
1,000 TB = 1,000,000 GB
2,048 TB = 2,048,000 GB
Binary Standard (Base 1024)
Using binary calculation: 1 TB = 1,024 GB
100 TB = 102,400 GB
1,000 TB = 1,024,000 GB
1,024 TB = 1,048,576 GB
What Is a Terabyte (TB)? Definition and Uses
A terabyte is 1,000 gigabytes or 1,000,000,000,000 bytes. Common size for modern hard drives and SSDs.
The terabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard.
Common uses: External hard drives, NAS storage, video libraries, enterprise backups See also: Terabytes to Yottabytes.
1 TB = 8 × 10¹² bits = 1 × 10¹² bytes.
The terabyte can be abbreviated as TB; for example, 1 terabyte can be written as 1 TB.
Terabyte Storage Unit at a Glance
| Unit type | SI decimal |
|---|---|
| Base / standard | Base 1,000 — SI (International System of Units) |
| Symbol | TB |
| Common uses | External hard drives, NAS storage, video libraries, enterprise backups |
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 |
Terabyte to Gigabyte Conversion Table
The table below shows 100 terabyte measurements converted to gigabytes — scroll within the table to see the full range.
| Terabytes | Gigabytes | Gigabytes (Binary) |
|---|---|---|
| 1 TB | 1,000 GB | 1,024 GB |
| 13 TB | 13,000 GB | 13,312 GB |
| 26 TB | 26,000 GB | 26,624 GB |
| 39 TB | 39,000 GB | 39,936 GB |
| 52 TB | 52,000 GB | 53,248 GB |
| 65 TB | 65,000 GB | 66,560 GB |
| 78 TB | 78,000 GB | 79,872 GB |
| 91 TB | 91,000 GB | 93,184 GB |
| 104 TB | 104,000 GB | 106,496 GB |
| 117 TB | 117,000 GB | 119,808 GB |
| 130 TB | 130,000 GB | 133,120 GB |
| 143 TB | 143,000 GB | 146,432 GB |
| 156 TB | 156,000 GB | 159,744 GB |
| 169 TB | 169,000 GB | 173,056 GB |
| 182 TB | 182,000 GB | 186,368 GB |
| 195 TB | 195,000 GB | 199,680 GB |
| 208 TB | 208,000 GB | 212,992 GB |
| 221 TB | 221,000 GB | 226,304 GB |
| 234 TB | 234,000 GB | 239,616 GB |
| 247 TB | 247,000 GB | 252,928 GB |
| 260 TB | 260,000 GB | 266,240 GB |
| 273 TB | 273,000 GB | 279,552 GB |
| 286 TB | 286,000 GB | 292,864 GB |
| 299 TB | 299,000 GB | 306,176 GB |
| 312 TB | 312,000 GB | 319,488 GB |
| 325 TB | 325,000 GB | 332,800 GB |
| 338 TB | 338,000 GB | 346,112 GB |
| 351 TB | 351,000 GB | 359,424 GB |
| 364 TB | 364,000 GB | 372,736 GB |
| 377 TB | 377,000 GB | 386,048 GB |
| 390 TB | 390,000 GB | 399,360 GB |
| 403 TB | 403,000 GB | 412,672 GB |
| 416 TB | 416,000 GB | 425,984 GB |
| 429 TB | 429,000 GB | 439,296 GB |
| 442 TB | 442,000 GB | 452,608 GB |
| 455 TB | 455,000 GB | 465,920 GB |
| 468 TB | 468,000 GB | 479,232 GB |
| 481 TB | 481,000 GB | 492,544 GB |
| 494 TB | 494,000 GB | 505,856 GB |
| 507 TB | 507,000 GB | 519,168 GB |
| 520 TB | 520,000 GB | 532,480 GB |
| 533 TB | 533,000 GB | 545,792 GB |
| 546 TB | 546,000 GB | 559,104 GB |
| 559 TB | 559,000 GB | 572,416 GB |
| 572 TB | 572,000 GB | 585,728 GB |
| 585 TB | 585,000 GB | 599,040 GB |
| 598 TB | 598,000 GB | 612,352 GB |
| 611 TB | 611,000 GB | 625,664 GB |
| 624 TB | 624,000 GB | 638,976 GB |
| 637 TB | 637,000 GB | 652,288 GB |
| 650 TB | 650,000 GB | 665,600 GB |
| 663 TB | 663,000 GB | 678,912 GB |
| 676 TB | 676,000 GB | 692,224 GB |
| 689 TB | 689,000 GB | 705,536 GB |
| 702 TB | 702,000 GB | 718,848 GB |
| 715 TB | 715,000 GB | 732,160 GB |
| 728 TB | 728,000 GB | 745,472 GB |
| 741 TB | 741,000 GB | 758,784 GB |
| 754 TB | 754,000 GB | 772,096 GB |
| 767 TB | 767,000 GB | 785,408 GB |
| 780 TB | 780,000 GB | 798,720 GB |
| 793 TB | 793,000 GB | 812,032 GB |
| 806 TB | 806,000 GB | 825,344 GB |
| 819 TB | 819,000 GB | 838,656 GB |
| 832 TB | 832,000 GB | 851,968 GB |
| 845 TB | 845,000 GB | 865,280 GB |
| 858 TB | 858,000 GB | 878,592 GB |
| 871 TB | 871,000 GB | 891,904 GB |
| 884 TB | 884,000 GB | 905,216 GB |
| 897 TB | 897,000 GB | 918,528 GB |
| 910 TB | 910,000 GB | 931,840 GB |
| 923 TB | 923,000 GB | 945,152 GB |
| 936 TB | 936,000 GB | 958,464 GB |
| 949 TB | 949,000 GB | 971,776 GB |
| 962 TB | 962,000 GB | 985,088 GB |
| 975 TB | 975,000 GB | 998,400 GB |
| 988 TB | 988,000 GB | 1,011,712 GB |
| 1,001 TB | 1,001,000 GB | 1,025,024 GB |
| 1,014 TB | 1,014,000 GB | 1,038,336 GB |
| 1,027 TB | 1,027,000 GB | 1,051,648 GB |
| 1,040 TB | 1,040,000 GB | 1,064,960 GB |
| 1,053 TB | 1,053,000 GB | 1,078,272 GB |
| 1,066 TB | 1,066,000 GB | 1,091,584 GB |
| 1,079 TB | 1,079,000 GB | 1,104,896 GB |
| 1,092 TB | 1,092,000 GB | 1,118,208 GB |
| 1,105 TB | 1,105,000 GB | 1,131,520 GB |
| 1,118 TB | 1,118,000 GB | 1,144,832 GB |
| 1,131 TB | 1,131,000 GB | 1,158,144 GB |
| 1,144 TB | 1,144,000 GB | 1,171,456 GB |
| 1,157 TB | 1,157,000 GB | 1,184,768 GB |
| 1,170 TB | 1,170,000 GB | 1,198,080 GB |
| 1,183 TB | 1,183,000 GB | 1,211,392 GB |
| 1,196 TB | 1,196,000 GB | 1,224,704 GB |
| 1,209 TB | 1,209,000 GB | 1,238,016 GB |
| 1,222 TB | 1,222,000 GB | 1,251,328 GB |
| 1,235 TB | 1,235,000 GB | 1,264,640 GB |
| 1,248 TB | 1,248,000 GB | 1,277,952 GB |
| 1,261 TB | 1,261,000 GB | 1,291,264 GB |
| 1,274 TB | 1,274,000 GB | 1,304,576 GB |
| 1,287 TB | 1,287,000 GB | 1,317,888 GB |
SI Decimal vs Binary: Why Two Different Standards?
When converting terabytes to gigabytes, 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.
Want to skip the ambiguity entirely? Tebibyte (TiB) and Gibibyte (GiB) are the IEC binary-only siblings of terabyte and gigabyte — always base 1,024, no dual-standard guessing. See the TiB to GiB converter.
FAQs: Terabyte to Gigabyte Conversion
How many gigabytes are in 1 terabyte?
1 Terabyte (TB) equals 1,000 Gigabytes using the SI decimal standard, or 1,024 GB using the binary (IEC) standard.
How do I convert terabytes to gigabytes?
Multiply the terabyte value by 1,000 to get gigabytes. For example, 10 TB = 10,000 GB.
Is a terabyte bigger than a gigabyte?
Yes. 1 TB = 1,000 GB, so the terabyte is the larger data storage unit.
What is Terabyte (TB) commonly used for?
External hard drives, NAS storage, video libraries, enterprise backups.