GB to TB Converter
Convert gigabytes to terabytes for hard drives, backups, and cloud storage planning.
How It Works
Formula: GB to TB = value ÷ 1024
Example: 1000 GB = 0.976563 TB
Note: 1 terabyte equals 1024 gigabytes in the binary standard used by operating systems.
Common Uses
Rounding Rule
Rounded to 4 decimal places
Error Margin
±0.0001 TB
Precision Guidance
For storage, round to 2 decimals. For planning, keep 3-4 decimals.
Common Mistakes
Decimal labels (1000) and binary OS readings (1024) differ. A labeled 2 TB drive shows about 1.81 TiB in Windows.
Frequently Asked Questions
What is 1000 GB in TB?
1000 GB equals 0.9766 TB using the binary standard (1 TB = 1024 GB).
How do I convert GB to TB?
Divide the gigabyte value by 1024. For example, 2048 GB ÷ 1024 = 2 TB.
Why does a 1 TB drive show 931 GB?
Drive makers use decimal (1 TB = 1000 GB), but Windows uses binary (1 TB = 1024 GB), so 1 TB shows as about 931 GiB.
Is this binary or decimal?
This uses the binary standard (1 TB = 1024 GB) used by operating systems.
Deep Dive Guide
GB to TB Conversion Guide for US Hard Drives and Cloud Storage
Convert GB to TB for US external hard drives, cloud plans, and NAS storage. Learn the 1024 binary standard and why 2 TB equals 2048 GB.
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Last Updated 2026 | This converter was reviewed for accuracy