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Data conversion

Terabyte to Gigabyte Converter

Convert TB to GB instantly. Free TB to GB calculator with formula, examples and FAQs.

By MerQPrime Editorial TeamUpdated 2026-06-20Reviewed 2026-06-20Editorial policy

Converted value

1,000.00

1.00 TB = 1,000.00 GB

What is TB to GB?

TB to GB is a data conversion: the measured amount does not change, just the way it is expressed. It matters most to IT admins and power users. A single conversion factor (GB = TB × 1000) handles any value, large or small.

Where you'll use TB to GB

  • Sizing hard drives and NAS storage.
  • Planning backup and archive capacity.
  • Estimating data-centre storage.
  • Comparing large cloud plans.
  • Sizing video and backup files.

Formula

GB = TB × 1000

Example calculations

  • 1 TB = 1000 GB
  • 2 TB = 2000 GB
  • 4 TB = 4000 GB

TB to GB conversion table

TBGB
11000
88000
6464000
128128000
256256000
512512000
10241024000

Common mistakes to avoid

  • Converting in the wrong direction — multiplying when you should divide (or vice versa). Sanity-check whether GB should come out larger or smaller than TB.
  • Rounding too early. Keep full precision during the calculation and round only the final GB value.
  • Mixing bits and bytes — 1 byte = 8 bits, and storage is usually quoted in bytes while bandwidth is often in bits.

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Frequently asked questions

How do I convert TB to GB?
Multiply your TB value by the conversion factor, or use the formula: GB = TB × 1000. The calculator above applies this instantly in your browser.
What is the formula for TB to GB?
The standard conversion is: GB = TB × 1000. Enter any TB value above and the calculator returns the equivalent in GB immediately.
How do I convert GB back to TB?
Swap the units in the calculator, or open our dedicated GB-to-TB page for the inverse formula, examples and table.
When would I need to convert TB to GB?
A common situation is estimating data-centre storage. It also helps IT admins and power users. Bookmark this page for quick TB to GB lookups.
Is this TB to GB converter accurate, and is my data private?
Yes on both counts. Conversions use standard international factors and precise floating-point math, and everything runs locally in your browser — nothing you type is uploaded.

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Related tools, guides & pages

Terabyte to Gigabyte Converter (Instant & Free) | MerQPrime