GB to TB Converter
Convert gigabytes to terabytes with precision for decimal and binary systems
Quick Convert
Popular Conversion Values
Here are the most frequently searched GB to TB conversions for common storage capacities:
| Gigabytes (GB) | Terabytes – Decimal (TB) | Terabytes – Binary (TiB) |
|---|---|---|
| 64 GB | 0.064 TB | 0.0625 TiB |
| 128 GB | 0.128 TB | 0.125 TiB |
| 256 GB | 0.256 TB | 0.25 TiB |
| 512 GB | 0.512 TB | 0.5 TiB |
| 1,024 GB | 1.024 TB | 1 TiB |
| 2,048 GB | 2.048 TB | 2 TiB |
| 5,120 GB | 5.12 TB | 5 TiB |
| 10,240 GB | 10.24 TB | 10 TiB |
Conversion Formulas
Decimal System (SI Standard)
GB to TB:
de>TB = GB ÷ 1,000TB to GB:
de>GB = TB × 1,000The decimal system uses base 10 and is commonly employed by storage device manufacturers when advertising hard drive, SSD, and USB drive capacities. In this system, one terabyte equals exactly 1,000 gigabytes.
Binary System (IEC Standard)
GB to TB:
de>TiB = GB ÷ 1,024TB to GB:
de>GB = TiB × 1,024The binary system uses base 2 and reflects how computers actually process data. Operating systems like Windows typically display storage capacity in binary terms. In this system, one tebibyte (TiB) equals 1,024 gibibytes (GiB).
Important Note: The difference between decimal and binary measurements becomes more significant with larger storage capacities. A 1 TB drive advertised in decimal contains only 0.909 TiB when measured in binary, which is why your computer might show less available space than expected.
Step-by-Step Conversion
Example 1: Converting 2,560 GB to TB (Decimal)
Step 1: Identify the value in gigabytes: 2,560 GB
Step 2: Divide by 1,000: 2,560 ÷ 1,000 = 2.56
Step 3: Add the unit: 2.56 TB
Result: 2,560 GB equals 2.56 TB in the decimal system
Example 2: Converting 8,192 GB to TiB (Binary)
Step 1: Identify the value in gigabytes: 8,192 GB
Step 2: Divide by 1,024: 8,192 ÷ 1,024 = 8
Step 3: Add the unit: 8 TiB
Result: 8,192 GB equals 8 TiB in the binary system
Example 3: Converting 0.75 TB to GB (Decimal)
Step 1: Identify the value in terabytes: 0.75 TB
Step 2: Multiply by 1,000: 0.75 × 1,000 = 750
Step 3: Add the unit: 750 GB
Result: 0.75 TB equals 750 GB in the decimal system
Visual Storage Comparison
Laptop SSD
0.256 TB
Typical entry-level laptop storage
Gaming PC
1,000 GB
Standard gaming system storage
External Drive
4,000 GB
Common external backup drive
Server Storage
10,000 GB
Small business server capacity
Data Storage Context
Common Storage Scenarios
Smartphone Storage: Modern smartphones typically range from 64 GB to 512 GB (0.064 TB to 0.512 TB), with flagship models offering up to 1 TB of internal storage.
Laptop and Desktop Storage: Consumer laptops commonly feature SSDs ranging from 256 GB to 2 TB (0.256 TB to 2 TB), whilst desktop computers often utilise multiple drives totalling 1 TB to 10 TB of combined storage.
External Storage Devices: Portable hard drives and SSDs are available in capacities from 500 GB to 5 TB, with larger enterprise-grade external drives reaching 20 TB or more.
Cloud Storage: Cloud storage services typically offer tiers starting at 100 GB (0.1 TB) for personal users, scaling up to multiple terabytes for business subscriptions.
Real-World Storage Requirements
| Content Type | Approximate Size | Quantity per 1 TB |
|---|---|---|
| HD Film (1080p) | 4-5 GB | 200-250 films |
| 4K Film | 25-30 GB | 33-40 films |
| Music Track (MP3) | 3-5 MB | 200,000-333,000 tracks |
| High-Resolution Photo | 5-10 MB | 100,000-200,000 photos |
| 4K Video (1 minute) | 400-500 MB | 2,000-2,500 minutes |
| Modern PC Game | 50-150 GB | 7-20 games |
Decimal vs Binary Systems
Why Two Different Systems Exist
The dual system of data storage measurement exists because of how computers process information versus how manufacturers market their products. Computers operate on binary code (base 2), making powers of 2 (1024) the natural unit for digital data. However, the metric system (base 10) with powers of 1000 is more intuitive for general consumers.
Marketing and Operating System Differences
When you purchase a 1 TB hard drive, manufacturers use the decimal system, meaning you receive 1,000 GB. However, when you connect this drive to your computer, the operating system measures capacity in binary terms. The same 1 TB drive will display as approximately 931 GB because: 1,000,000,000,000 bytes ÷ 1,024³ = 931.32 GiB.
| Advertised Capacity | Decimal (GB) | Binary Display (GiB) | Difference |
|---|---|---|---|
| 500 GB Drive | 500 GB | 465.66 GiB | -6.87% |
| 1 TB Drive | 1,000 GB | 931.32 GiB | -6.87% |
| 2 TB Drive | 2,000 GB | 1,862.65 GiB | -6.87% |
| 4 TB Drive | 4,000 GB | 3,725.29 GiB | -6.87% |
Frequently Asked Questions
How many GB are in 1 TB?
In the decimal system (commonly used by storage manufacturers), 1 TB equals 1,000 GB. In the binary system (used by computer operating systems), 1 TiB equals 1,024 GiB. The difference arises from the base-10 versus base-2 counting methods.
Why does my 1 TB drive show less storage on my computer?
Your 1 TB drive shows approximately 931 GB because manufacturers use the decimal system (1 TB = 1,000 GB) whilst operating systems display capacity in binary terms (1 TiB = 1,024 GiB). Additionally, some space is reserved for the file system and drive formatting.
Which conversion system should I use?
Use the decimal system (dividing by 1,000) when comparing advertised storage capacities or discussing storage in general terms. Use the binary system (dividing by 1,024) when performing technical calculations or matching what your operating system displays.
Is 500 GB half a terabyte?
Yes, 500 GB is exactly half of 1 TB in the decimal system (500 ÷ 1,000 = 0.5 TB). In binary terms, 512 GiB equals half of 1 TiB (512 ÷ 1,024 = 0.5 TiB).
What comes after terabytes?
The next larger units of data storage are petabytes (PB), exabytes (EB), zettabytes (ZB), and yottabytes (YB). In the decimal system: 1 PB = 1,000 TB, 1 EB = 1,000 PB, 1 ZB = 1,000 EB, and 1 YB = 1,000 ZB.
How much storage do I need for my laptop?
For basic web browsing and document work, 256 GB (0.256 TB) suffices. For general use with photos and videos, 512 GB to 1 TB is recommended. Content creators and gamers should consider 1 TB to 2 TB or more, depending on their specific requirements.
Can I mix GB and TB when calculating total storage?
Yes, but you must first convert all values to the same unit. For example, if you have a 256 GB SSD and a 2 TB hard drive, convert: 256 GB = 0.256 TB, then add: 0.256 TB + 2 TB = 2.256 TB total storage.
Is a 1 TB SSD the same as a 1 TB HDD?
Both have the same storage capacity (1,000 GB or approximately 931 GiB when formatted), but SSDs are significantly faster, more durable, and consume less power than traditional hard disc drives. The storage measurement is identical regardless of the technology.