Convert GB to TB
1 GB = 0.001 TB · 1 TB = 1000 GB · Exact by definition
1 GB = 0.001 TB
The same value in other units
- bit
- 8000000000 b
- byte
- 1000000000 B
- kilobyte
- 1000000 kB
- megabyte
- 1000 MB
- kibibyte
- 976563 KiB
- mebibyte
- 953.674 MiB
- gibibyte
- 0.931323 GiB
- tebibyte
- 0.000909495 TiB
Settings
Digits kept in the answer. Automatic keeps six, which hides floating-point noise without losing anything real.
Convert a whole list
Paste one conversion per line, written the way you would say it: "5 km to mi". Handy for a column copied out of a spreadsheet.
Data size
GB to TB: conversion table
| gigabyte | terabyte |
|---|---|
| 1 GB | 0.001 TB |
| 2 GB | 0.002 TB |
| 3 GB | 0.003 TB |
| 5 GB | 0.005 TB |
| 10 GB | 0.01 TB |
| 20 GB | 0.02 TB |
| 25 GB | 0.025 TB |
| 50 GB | 0.05 TB |
| 100 GB | 0.1 TB |
| 250 GB | 0.25 TB |
| 500 GB | 0.5 TB |
| 1000 GB | 1 TB |
| terabyte | gigabyte |
|---|---|
| 1 TB | 1000 GB |
| 2 TB | 2000 GB |
| 3 TB | 3000 GB |
| 5 TB | 5000 GB |
| 10 TB | 10000 GB |
| 20 TB | 20000 GB |
| 25 TB | 25000 GB |
| 50 TB | 50000 GB |
| 100 TB | 100000 GB |
| 250 TB | 250000 GB |
| 500 TB | 500000 GB |
| 1000 TB | 1000000 GB |
How the conversion works
TB = GB × 0.001
Both units are defined exactly, so the precision of the GB to TB result depends only on the number of decimal places you choose.
METHOD AND SOURCES
Where the conversion factors come from
Results are calculated from the unit definitions stored in the converter, not copied from a lookup table. For exact units, every value in the table follows from the same factor shown in the formula above.
- IEC 80000-13:2025
The standard defining information units and binary prefixes.
- NIST — Prefixes for binary multiples
A public reference for the relationship between kB/MB and KiB/MiB.
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