TB to GB Converter

1 TB = 1024 GB  ·  1 GB = 0.000977 TB

Convert Terabytes to Gigabytes Instantly

This free converter turns Terabytes (TB) into Gigabytes (GB) the moment you type. The relationship is fixed: 1 TB = 1024 GB, so every value uses the same exact ratio. Enter a number above to see the result, read across the reference table for common values, or hit the swap button to convert GB back to TB.

The TB to GB Formula

Multiply the number of Terabytes by the conversion factor:

GB = TB × 1024

To reverse the calculation, divide by the same factor (or multiply by its inverse):

TB = GB × 0.000977

Worked Examples

Here are some common Terabytes-to-Gigabytes conversions worked out using the formula above:

• 1 TB = 1024 GB
• 2 TB = 2048 GB
• 5 TB = 5120 GB
• 10 TB = 10240 GB
• 25 TB = 25600 GB
• 100 TB = 102400 GB

Understanding Terabytes and Gigabytes

Terabytes (TB) and Gigabytes (GB) are units of digital information. Each step up — kilobyte, megabyte, gigabyte, terabyte — is 1,024 times larger in the binary convention used by most operating systems. This converter uses that relationship so file and storage sizes line up with what your device reports.

Where This Conversion Is Used

• File management — checking whether downloads and attachments fit a size limit
• Storage planning — sizing drives, SD cards, and cloud quotas
• Web and app development — budgeting asset and payload sizes
• Networking — estimating bandwidth and transfer times
• Backups and archiving — calculating how much space a dataset needs

Quick Conversion Tips

• For a fast estimate, round the factor to one or two decimals and adjust mentally.
• Keep the full factor (1024) for anything where precision matters, such as engineering or finance.
• Use the swap button above to convert in the opposite direction without re-typing.

Frequently Asked Questions

How many Gigabytes are in 1 Terabytes?

One Terabytes (TB) equals exactly 1024 Gigabytes (GB). Multiply any value in TB by 1024 to convert it.

How do I convert Gigabytes back to Terabytes?

Divide the value in GB by 1024, or multiply it by 0.000977. For example, 10 GB = 0.000977 × 10 = 0.009766 TB.

Is the TB to GB conversion exact?

Yes. The factor 1024 is defined by international standards, so the converter is accurate to the limits of floating-point arithmetic. Results may be rounded for display, but the underlying calculation uses the full-precision value.

Can I use this converter on my phone?

Yes — the calculator works in any browser on desktop, tablet, and mobile, with no app or sign-up required.