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Convert gigabytes to terabytes

1 GB=0.001TB

Use the converter below to change any gigabytes value into terabytes instantly — with formula, conversion table, and real-world examples.

0.001

Conversion formula

Forward
terabytes = gigabytes × 0.001
Reverse
gigabytes = terabytes × 1,000

Example: 10 GB × 0.001 = 0.01 TB.

About both units

From

Gigabyte

GB

The gigabyte equals 1,000,000,000 bytes (SI) or 1,073,741,824 bytes (binary, GiB). Standard unit for USB drives, SSDs, mobile-data allowances and RAM. A 64 GB phone holds about 15,000 photos.

Real-world: Smartphone: 64 GB / 128 GB / 256 GB typical. PC RAM: 16 GB / 32 GB common. UHD movie: 20–50 GB.
Read full gigabyte reference →
To

Terabyte

TB

The terabyte equals 10¹² bytes (SI) or 2⁴⁰ bytes (binary, TiB). Used for large drives, NAS units, and big-data contexts. A 1 TB drive holds around 250,000 photos or 500 hours of HD video.

Real-world: Desktop HDD: 1–20 TB. Typical NAS: 4–48 TB. Cloud-storage plans: often 1–2 TB.
Read full terabyte reference →

Gigabyte to Terabyte conversion table

Common gigabytes to terabytes values for quick reference.

Gigabyte (GB)Terabyte (TB)
1 GB0.001 TB
10 GB0.01 TB
100 GB0.1 TB
500 GB0.5 TB
1,000 GB1 TB
5,000 GB5 TB
10,000 GB10 TB
50,000 GB50 TB
100,000 GB100 TB
500,000 GB500 TB

Tips & common mistakes

Quick tips

  • SI: 1 GB = 1000 MB = 10⁹ B. Binary GiB = 2³⁰ B.
  • Hard drives use SI; OS may show binary — discrepancy ~7%.
  • Mobile data plans: SI GB.

Avoid these

  • Expecting 64 GB drive to hold 64 × 1,073,741,824 B — it's 64 × 10⁹ B (7% less by binary measure).
  • Confusing GB with Gb (gigabit, 1/8).
  • Mixing GB and GiB without noting the discrepancy.

Frequently asked questions

How many terabytes in a gigabyte?
One gigabyte equals 0.001 terabytes.
How do I convert gigabytes to terabytes?
Multiply the gigabyte value by 0.001 to get the equivalent in terabytes.
What is 100 gigabytes in terabytes?
100 gigabytes equals 0.1 terabytes.
Is a gigabyte bigger than a terabyte?
No. 1 gigabyte equals 0.001 terabytes, so one gigabyte is smaller.
How to convert gigabytes to terabytes without a calculator?
Multiply by 0 for a quick estimate; use a calculator for precise results.

Related data conversions

📊 See full comparison matrix →

More from Gigabyte

GB → b
1 = 8,000,000,000 b
GB → B
1 = 1,000,000,000 B
GB → KB
1 = 1,000,000 KB
GB → MB
1 = 1,000 MB
GB → PB
1 = 1.0000e-6 PB
GB → Mbps
1 = 8,000 Mbps

More to Terabyte

b → TB
1 = 1.2500e-13 TB
B → TB
1 = 1.0000e-12 TB
KB → TB
1 = 1.0000e-9 TB
MB → TB
1 = 1.0000e-6 TB
PB → TB
1 = 1,000 TB
Mbps → TB
1 = 1.2500e-7 TB

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