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Convert terabytes to gigabytes

1 TB=1,000GB

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

1,000

Conversion formula

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

Example: 10 TB × 1,000 = 10,000 GB.

About both units

From

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 →
To

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 →

Terabyte to Gigabyte conversion table

Common terabytes to gigabytes values for quick reference.

Terabyte (TB)Gigabyte (GB)
1 TB1,000 GB
10 TB10,000 GB
100 TB100,000 GB
500 TB500,000 GB
1,000 TB1,000,000 GB
5,000 TB5,000,000 GB
10,000 TB10,000,000 GB
50,000 TB50,000,000 GB
100,000 TB100,000,000 GB
500,000 TB500,000,000 GB

Tips & common mistakes

Quick tips

  • 1 TB = 1000 GB (SI). 1 TiB = 1024 GiB.
  • TB drives formatted show less in OS (binary vs SI).
  • Archival/backup workflows typically measured in TB.

Avoid these

  • Expecting a 1 TB drive to hold 1 TiB — actually 931 GiB formatted.
  • Buying a TB drive for backup without considering RAID overhead.
  • Confusing TB with Tb (terabit, 1/8).

Frequently asked questions

How many gigabytes in a terabyte?
One terabyte equals 1,000 gigabytes.
How do I convert terabytes to gigabytes?
Multiply the terabyte value by 1,000 to get the equivalent in gigabytes.
What is 100 terabytes in gigabytes?
100 terabytes equals 100,000 gigabytes.
Is a terabyte bigger than a gigabyte?
Yes. 1 terabyte equals 1,000 gigabytes, so one terabyte is larger.
How to convert terabytes to gigabytes without a calculator?
Multiply by 1,000 for a quick estimate; use a calculator for precise results.

Related data conversions

📊 See full comparison matrix →

More from Terabyte

TB → b
1 = 8,000,000,000,000 b
TB → B
1 = 1,000,000,000,000 B
TB → KB
1 = 1,000,000,000 KB
TB → MB
1 = 1,000,000 MB
TB → PB
1 = 0.001 PB
TB → Mbps
1 = 8,000,000 Mbps

More to Gigabyte

b → GB
1 = 1.2500e-10 GB
B → GB
1 = 1.0000e-9 GB
KB → GB
1 = 1.0000e-6 GB
MB → GB
1 = 0.001 GB
PB → GB
1 = 1,000,000 GB
Mbps → GB
1 = 0.000125 GB

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