Gigabytes to terabytes converter

1 GB = 0.001 TB (exact). To convert gigabytes to terabytes, multiply by 0.001. Example: 1000 GB = 1 TB.

Result (TB)

TB = GB × 0.001 · Swap: Terabytes to gigabytes

Open the full tool: Unit converter →

Gigabytes to terabytes chart

GigabytesTerabytes
100 GB0.1 TB
128 GB0.128 TB
256 GB0.256 TB
512 GB0.512 TB
1000 GB1 TB
2000 GB2 TB
3000 GB3 TB
4000 GB4 TB
6000 GB6 TB
8000 GB8 TB
10,000 GB10 TB
12,000 GB12 TB
16,000 GB16 TB
20,000 GB20 TB

How to convert gigabytes to terabytes

Formula: TB = GB × 0.001. Worked example: 1000 GB = 1 TB.

About these units

1 TB = 1,000 GB = 10¹² bytes in the decimal system used by drive makers. Windows shows a 1 TB drive as “931 GB” because it divides by 1024³ — same bytes, different unit (GiB).

Category: data size. Results on this page are calculated in your browser and rounded to 7 significant digits; the table above uses 6. For other units of data size open the full unit converter, or use the reverse page — terabytes to gigabytes.

FAQ

How many terabytes are in one GB?

1 GB = 0.001 TB exactly. Conversely, 1 TB = 1000 GB.

What is 100 GB in terabytes?

100 GB = 0.1 TB.

Is this converter accurate?

Yes — it uses the official definitions (1 GB = 1,000,000,000 bytes, 1 TB = 1,000,000,000,000 bytes) and shows results rounded to 7 significant digits.

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