Terabytes to Gigabytes Converter
Convert Terabytes to Gigabytes with the exact conversion factor, a worked example and a quick-reference table. Runs entirely in your browser.
This converter turns Terabytes into Gigabytes instantly using the standard definition of both units. It includes the formula, a worked example, and a quick table for common amounts, and it works for any value you type — including decimals and negatives where they make sense.
Quick reference — Terabytes to Gigabytes
How to use this calculator
- Enter the value in Terabytes in the input box.
- Read the result in Gigabytes — it updates as you type.
- Use the Swap button to convert in the opposite direction.
- Check the quick-reference table for common Terabytes amounts.
The formula
Gigabytes = Terabytes × 1,000
Worked example
3 TB = 3,000 GB — in full, 3 Terabytes converts to 3,000 Gigabytes. File sizes, downloads and storage specs are the everyday jobs for this conversion.
Frequently Asked Questions
How do I convert Terabytes to Gigabytes?
Multiply the value in Terabytes by 1,000. For example, 3 Terabytes × 1,000 = 3,000 Gigabytes. To go the other way, divide by 1,000 instead — or press Swap in the converter above.
How many Gigabytes are in one Terabyte?
One Terabyte equals 1,000 Gigabytes. Scaling up, 10 Terabytes = 10,000 Gigabytes and 100 Terabytes = 100,000 Gigabytes. The converter uses the full-precision factor, so typed values are more precise than the rounded figure quoted here.
Which is bigger, a Terabyte or a Gigabyte?
A Terabyte is bigger. One Terabyte equals 1,000 Gigabytes, while one Gigabyte is only 0.001 Terabytes. So a measurement that looks larger in Gigabytes is reflecting the scale difference, not an error.
What is 3 Terabytes in Gigabytes?
3 Terabytes is 3,000 Gigabytes. The math is 3 × 1,000 = 3,000. Try any other amount in the converter above and the result updates as you type.