Terabytes to bytes
bytes = terabytes × 1,000,000,000,000
Reverse: bytes to terabytes
How to convert terabytes to bytes
One terabyte is 1,000,000,000,000 bytes, so multiply the number of terabytes by 1,000,000,000,000. For example, 20 terabytes is 20 × 1,000,000,000,000 = 20,000,000,000,000 bytes. To go back, divide by the same number, or multiply by 1e-12.
Quick estimate
Multiplying by about 1000000000000 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.
| terabytes | bytes |
|---|---|
| 1 tb | 1,000,000,000,000 b |
| 2 tb | 2,000,000,000,000 b |
| 3 tb | 3,000,000,000,000 b |
| 4 tb | 4,000,000,000,000 b |
| 5 tb | 5,000,000,000,000 b |
| 6 tb | 6,000,000,000,000 b |
| 7 tb | 7,000,000,000,000 b |
| 8 tb | 8,000,000,000,000 b |
| 9 tb | 9,000,000,000,000 b |
| 10 tb | 10,000,000,000,000 b |
| 11 tb | 11,000,000,000,000 b |
| 12 tb | 12,000,000,000,000 b |
| 13 tb | 13,000,000,000,000 b |
| 14 tb | 14,000,000,000,000 b |
| 15 tb | 15,000,000,000,000 b |
| 16 tb | 16,000,000,000,000 b |
| 17 tb | 17,000,000,000,000 b |
| 18 tb | 18,000,000,000,000 b |
| 19 tb | 19,000,000,000,000 b |
| 20 tb | 20,000,000,000,000 b |
| 25 tb | 25,000,000,000,000 b |
| 30 tb | 30,000,000,000,000 b |
| 40 tb | 40,000,000,000,000 b |
| 50 tb | 50,000,000,000,000 b |
| 60 tb | 60,000,000,000,000 b |
| 70 tb | 70,000,000,000,000 b |
| 75 tb | 75,000,000,000,000 b |
| 80 tb | 80,000,000,000,000 b |
| 90 tb | 90,000,000,000,000 b |
| 100 tb | 100,000,000,000,000 b |
| 120 tb | 120,000,000,000,000 b |
| 150 tb | 150,000,000,000,000 b |
| 200 tb | 200,000,000,000,000 b |
| 250 tb | 250,000,000,000,000 b |
| 300 tb | 300,000,000,000,000 b |
| 400 tb | 400,000,000,000,000 b |
| 500 tb | 500,000,000,000,000 b |
| 750 tb | 750,000,000,000,000 b |
| 1,000 tb | 1e+15 b |
| 1,500 tb | 1.5e+15 b |
| 2,000 tb | 2e+15 b |
| 5,000 tb | 5e+15 b |
| 10,000 tb | 1e+16 b |
Questions
How many bytes are in a terabyte?
1,000,000,000,000 bytes.
How do I convert terabytes to bytes in a spreadsheet?
Put the value in A1 and type =A1*1000000000000, 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.