This converter turns terabytes into bits instantly, using the exact factor 1 terabyte = 8e+12 bits. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
One trillion bytes; standard hard-drive capacity. A single binary digit — the smallest unit of information.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
terabytes- The amount you are converting, measured in terabytes
8e+12- The exact number of bits in one terabyte
bits- The converted result
How it works, step by step
- Enter the number of terabytes you want to convert.
- The value is multiplied by 8e+12, the exact conversion factor.
- The result is displayed in bits, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 terabytes
Multiply 5 by 8e+12. That gives 4.0000e+13 bits. A quick sanity check: one terabyte is larger than one bit, so the number should get bigger — and it does.
Converting 72 terabytes
72 × 8e+12 = 5.7600e+14 bits. Working backwards, 5.7600e+14 ÷ 8e+12 returns 72 terabytes, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many bits are in one terabyte?
Exactly 8e+12. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert terabytes to bits?
Bits = terabytes × 8e+12. To reverse it, divide instead: terabytes = bits ÷ 8e+12, which is the same as multiplying by 1.25e-13.
Is the terabyte bigger than the bit?
Yes. One terabyte equals 8e+12 bits, so it is the larger unit.
Why does my answer differ slightly from other terabytes to bits converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a terabyte?
One trillion bytes; standard hard-drive capacity.
What is a bit?
A single binary digit — the smallest unit of information.
Terabytes to bits reference table
| Terabytes | Bits |
|---|---|
| 0.5 TB | 4.0000e+12 b |
| 1 TB | 8.0000e+12 b |
| 2 TB | 1.6000e+13 b |
| 3 TB | 2.4000e+13 b |
| 5 TB | 4.0000e+13 b |
| 10 TB | 8.0000e+13 b |
| 15 TB | 1.2000e+14 b |
| 20 TB | 1.6000e+14 b |
| 25 TB | 2.0000e+14 b |
| 50 TB | 4.0000e+14 b |
| 75 TB | 6.0000e+14 b |
| 100 TB | 8.0000e+14 b |
| 250 TB | 2.0000e+15 b |
| 500 TB | 4.0000e+15 b |
| 1000 TB | 8.0000e+15 b |
Exact factor: 1 terabyte = 8e+12 bits. Values rounded for display.