Gigabytes to terabytes
terabytes = gigabytes × 0.001
Reverse: terabytes to gigabytes
How to convert gigabytes to terabytes
One gigabyte is 0.001 terabytes, so multiply the number of gigabytes by 0.001. For example, 20 gigabytes is 20 × 0.001 = 0.02 terabytes. To go back, divide by the same number, or multiply by 1,000.
Quick estimate
Multiplying by about 0.001 gets within 0.0% of the exact answer, which is enough to check that a result makes sense.
Where it comes up
Data conversions come up when comparing storage on phones and drives, file and download sizes, and internet plans.
| gigabytes | terabytes |
|---|---|
| 1 gb | 0.001 tb |
| 2 gb | 0.002 tb |
| 3 gb | 0.003 tb |
| 4 gb | 0.004 tb |
| 5 gb | 0.005 tb |
| 6 gb | 0.006 tb |
| 7 gb | 0.007 tb |
| 8 gb | 0.008 tb |
| 9 gb | 0.009 tb |
| 10 gb | 0.01 tb |
| 11 gb | 0.011 tb |
| 12 gb | 0.012 tb |
| 13 gb | 0.013 tb |
| 14 gb | 0.014 tb |
| 15 gb | 0.015 tb |
| 16 gb | 0.016 tb |
| 17 gb | 0.017 tb |
| 18 gb | 0.018 tb |
| 19 gb | 0.019 tb |
| 20 gb | 0.02 tb |
| 25 gb | 0.025 tb |
| 30 gb | 0.03 tb |
| 40 gb | 0.04 tb |
| 50 gb | 0.05 tb |
| 60 gb | 0.06 tb |
| 70 gb | 0.07 tb |
| 75 gb | 0.075 tb |
| 80 gb | 0.08 tb |
| 90 gb | 0.09 tb |
| 100 gb | 0.1 tb |
| 120 gb | 0.12 tb |
| 150 gb | 0.15 tb |
| 200 gb | 0.2 tb |
| 250 gb | 0.25 tb |
| 300 gb | 0.3 tb |
| 400 gb | 0.4 tb |
| 500 gb | 0.5 tb |
| 750 gb | 0.75 tb |
| 1,000 gb | 1 tb |
| 1,500 gb | 1.5 tb |
| 2,000 gb | 2 tb |
| 5,000 gb | 5 tb |
| 10,000 gb | 10 tb |
Questions
How many terabytes are in a gigabyte?
0.001 terabytes.
How do I convert gigabytes to terabytes in a spreadsheet?
Put the value in A1 and type =A1*0.001, then fill the formula down the column.
Are the values in the table exact?
They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.