Tebibytes (TiB) to Gigabytes (GB) Converter
Enter your Tebibytes (TiB) value to convert to Gigabytes (GB). 1 TiB = 1,099.511628 GB, calculated across both decimal (SI) and binary (IEC) standards.
Convert Tebibytes to Gigabytes
Do you want to convert gigabytes to tebibytes?
How to Convert Tebibytes to Gigabytes
To convert tebibytes (binary/IEC) to gigabytes (decimal/SI), multiply by 1,099.511628. Binary units use base 1,024, while decimal units use base 1,000—this creates small differences that accumulate at larger scales. Check out our GB to TiB calculator.
TiB is a binary (IEC) unit where 1 TiB = 1,024 of the smaller unit. Operating systems like Windows typically display storage using binary calculations. Use our convert TiB to Zib.
GB is a decimal (SI) unit where 1 GB = 1,000 of the smaller unit. Storage manufacturers use decimal units, which is why a "1 TB" drive shows less in Windows. Learn more: nibble → GB.
1 TiB = 1,099.511628 GB (using SI decimal standard) — which means there are 1,099.511628gigabytes in every tebibyte.
TiB to GB Conversion Formula
// Convert TiB to GB
GB = TiB × 1,099.511628
// Reverse: Convert GB to TiB
TiB = GB × 0.000909494702
TiB to GB Conversion Examples
100 TiB = 109,951.162778 GB
256 TiB = 281,474.976711 GB
500 TiB = 549,755.813888 GB
1,000 TiB = 1,099,512 GB
2,048 TiB = 2,251,800 GB
What Is a Tebibyte?
A tebibyte is 1,024 gibibytes or 1,099,511,627,776 bytes. The actual usable capacity shown by operating systems. Related: Megabytes to Terabytes.
The tebibyte is a IEC binary unit of digital information storage. It uses base 1,024 following the IEC (International Electrotechnical Commission) standard. Related: Tebibytes Per Second to Gibibits Per Second converter.
Common uses: OS-reported drive capacity, NAS actual storage, enterprise storage systems Check out our Tebibytes to Bytes calculator.
1 TiB = 9 × 10¹² bits = 1 × 10¹² bytes.
The tebibyte can be abbreviated as TiB; for example, 1 tebibyte can be written as 1 TiB.
What Is a Gigabyte?
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. Learn more: convert Bytes to Gigabytes.
The gigabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. Related: Exbibits to Yottabytes conversion.
Common uses: Movies, video games, smartphone storage, USB drives, cloud storage plans You might also need: Gbps to Megabytes Per Second converter.
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.
Tebibyte to Gigabyte Conversion Table
The table below shows various tebibyte measurements converted to gigabytes.
| Tebibytes | Gigabytes |
|---|---|
| 1 TiB | 1,099.51162778 GB |
| 2 TiB | 2,199.02325555 GB |
| 5 TiB | 5,497.55813888 GB |
| 10 TiB | 10,995.11627776 GB |
| 25 TiB | 27,487.7906944 GB |
| 50 TiB | 54,975.5813888 GB |
| 100 TiB | 109,951.1627776 GB |
| 128 TiB | 140,737.48835533 GB |
| 250 TiB | 274,877.906944 GB |
| 256 TiB | 281,474.97671066 GB |
| 500 TiB | 549,755.813888 GB |
| 512 TiB | 562,949.95342131 GB |
| 1,000 TiB | 1,099,512 GB |
| 1,024 TiB | 1,125,900 GB |
SI Decimal vs Binary: Why Two Different Standards?
When converting tebibytes 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 |
Why Does My Hard Drive Show Less Space Than Advertised?
This difference in standards explains the common "missing hard drive space" confusion.
Example: A "500 GB" Hard Drive
- Contains exactly: 500,000,000,000 bytes
- macOS (SI Decimal): Displays 500 GB (divides by 1,000³)
- Windows (Binary): Displays 465 GB (divides by 1,024³)
The Verdict: Same bytes, same drive—just different math. No space is actually missing.
Note: Our calculator defaults to SI decimal (base 1000) to match the box label. To match Windows, toggle the standard at the top of the calculator.
💡 Storage Engineer Tip
The ~9.95% difference between binary and decimal units compounds at each level. A 1 TB drive shows as 931 GiB in Windows because of this standard mismatch—no space is actually lost.
— Subash Geetha Krishnan, 15+ years in enterprise storage
When to Convert TiB to GB
Common scenario: Reconciling the difference between what drive manufacturers advertise and what your operating system displays. Try the Tebibytes to YiB calculator.
Other situations include storage planning for calculating how much data fits in a given capacity, file management for understanding sizes across different scales, cost estimation for budgeting cloud storage, and backup planning for determining media requirements. You might also need: convert Zb to Gigabytes.