GB ↔ TB Converter
Convert between Gigabytes and Terabytes instantly
💾 GB ↔ TB Conversion Details
GB to TB Formula (Decimal)
To convert gigabytes to terabytes (decimal), divide GB by 1000.
TB to GB Formula (Decimal)
To convert terabytes to gigabytes (decimal), multiply TB by 1000.
Binary vs Decimal
- Decimal: 1 TB = 1000 GB (Storage manufacturers)
- Binary: 1 TiB = 1024 GiB (Operating systems)
- Note: Windows uses binary, Mac uses decimal
Common Uses
- Hard drive capacity
- Cloud storage
- Data transfer limits
- Backup storage
🔢 Understanding the Difference
Decimal (Base 10) System: Used by storage manufacturers. 1 Terabyte (TB) = 1000 Gigabytes (GB)
Binary (Base 2) System: Used by operating systems. 1 Tebibyte (TiB) = 1024 Gibibytes (GiB)
Why it matters: A 1 TB hard drive shows as 931 GB in Windows because Windows calculates in binary (1024³ bytes = 1.0995 TB in decimal).
📊 Conversion Table
| Gigabytes (GB) | Terabytes (TB) | Tebibytes (TiB) |
|---|---|---|
| 100 GB | 0.1 TB | 0.091 TiB |
| 250 GB | 0.25 TB | 0.233 TiB |
| 500 GB | 0.5 TB | 0.466 TiB |
| 1000 GB | 1 TB | 0.931 TiB |
| 2000 GB | 2 TB | 1.862 TiB |
| 4000 GB | 4 TB | 3.725 TiB |
💽 Common Storage Examples
❓ Frequently Asked Questions
A: Windows uses binary calculation (1024×1024×1024 bytes) while manufacturers use decimal (1000×1000×1000 bytes). So 1 TB (decimal) = 0.931 TiB (binary).
A: TB (Terabyte) uses decimal system (1000³ bytes). TiB (Tebibyte) uses binary system (1024³ bytes). 1 TB = 0.909 TiB.
A: Use decimal (1000) for storage device capacity. Use binary (1024) for how operating systems display storage.
A: Decimal: 2 TB = 2000 GB. Binary: 2 TiB = 2048 GiB.