TB to GB Converter
Convert terabytes to gigabytes with decimal and binary conversion options. Perfect for calculating large storage capacity and data management.
TB to GB Converter
Convert terabytes to gigabytes with decimal (SI) and binary (IEC) conversion standards.
Result
Enter a value and click "Convert" to see the result
Understanding TB to GB Conversion
Converting terabytes to gigabytes helps you understand large storage capacity and data management. The conversion depends on whether you use decimal (SI) or binary (IEC) standards.
Conversion Standards:
- Decimal (SI) Standard: 1 TB = 1,000 GB (used by hard drive manufacturers)
- Binary (IEC) Standard: 1 TB = 1,024 GB (used by operating systems)
- Storage vs Display: Hard drives use decimal, OS displays use binary
- File Systems: Most file systems use binary calculations
Common Use Cases:
- Storage Planning: Calculate large storage capacity in gigabytes
- Data Center Management: Plan storage requirements for servers
- Backup Planning: Calculate backup storage requirements
- Cloud Storage: Plan cloud storage allocation and costs
- Enterprise Storage: Calculate enterprise storage needs
Conversion Examples:
- 1 TB = 1,000 GB (decimal standard)
- 1 TB = 1,024 GB (binary standard)
- 5 TB = 5,000 GB (decimal) or 5,120 GB (binary)
- 10 TB = 10,000 GB (decimal) or 10,240 GB (binary)
Frequently Asked Questions
How many GB are in a TB?
In the decimal (SI) standard, 1 TB = 1,000 GB. In the binary standard used by operating systems, 1 TB = 1,024 GB (technically 1 TiB). Drive manufacturers use decimal, so a 1 TB drive shows as about 931 GB in Windows.
Why is my 1 TB drive showing only 931 GB?
The drive holds 1,000,000,000,000 bytes (decimal TB), but Windows divides by 1,024 three times, giving roughly 931 GiB. No capacity is lost — it is the same bytes counted two different ways.
Is a terabyte 1000 or 1024 gigabytes?
Both are used. 1,000 GB is the decimal/SI definition (storage marketing, networking). 1,024 GB matches the binary values your OS reports. This converter shows both.
How many photos or movies fit in a TB?
Roughly: 1 TB holds about 250,000 photos (4 MB each), 500 hours of HD video, or 250 full HD movies (4 GB each). Exact counts depend on resolution and compression.