To convert terabits per second to mebibytes per second, multiply by 119,209.2896. That factor is the whole relationship: both units measure how much data moves per second, so the conversion is a proportion with no offset and no substance-specific constant.
A mebibyte is 1,048,576 bytes, about 4.9% more than a megabyte. The gap is why a "100 MB/s" drive benchmarks at roughly 95 MiB/s. Terabits per second describes backbone and submarine cable capacity rather than anything you can buy for a house.
Bits and bytes. Network speeds are sold in bits per second and file transfers are reported in bytes per second, and there are eight bits to a byte, so a 100 Mbps line downloads at about 12 MB/s. A connection is not underperforming by a factor of eight; it is being measured in different units. Below the calculator there is a step table for the values people look up most, and a second table putting real how much data moves per second figures into mebibytes per second so the number you get has something to be compared against.
The formula
terabits per second- The amount you are converting, in terabits per second
119,209.289551- The exact number of mebibytes per second in one terabit per second
mebibytes per second- The converted result
How it works, step by step
- Enter the value in terabits per second.
- It is multiplied by 119,209.289551, the exact factor between the two units.
- The answer is shown in mebibytes per second, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
Wired gigabit Ethernet: 0.001 Tbit/s in mebibytes per second
At 0.001 Tbit/s (wired gigabit ethernet), the same quantity in mebibytes per second is 0.001 × 119,209 = 119.209 MiB/s. One terabit per second is 119,209 mebibytes per second, so the numbers grow as expected.
Wi-Fi 6 link rate: 0.0012 Tbit/s in mebibytes per second
Wi-Fi 6 link rate comes to about 0.0012 Tbit/s. Multiplying by the factor: 0.0012 × 119,209 = 143.051 MiB/s. Dividing the answer back by 119,209 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
How to read your score
Frequently asked questions
How many mebibytes per second are in one terabit per second?
Exactly 119,209.289551. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert terabits per second to mebibytes per second?
mebibytes per second = terabits per second × 119,209.289551. Reversed, terabits per second = mebibytes per second ÷ 119,209.289551, which is the same as multiplying by 8.388608e-06.
Which is the bigger unit, the terabit per second or the mebibyte per second?
The terabit per second. One terabit per second equals 119,209 mebibytes per second.
What does this quantity actually measure?
Both units measure how much data moves per second. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a terabit per second?
Terabits per second describes backbone and submarine cable capacity rather than anything you can buy for a house.
What is a mebibyte per second?
A mebibyte is 1,048,576 bytes, about 4.9% more than a megabyte. The gap is why a "100 MB/s" drive benchmarks at roughly 95 MiB/s.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Is there a quick way to do Tbit/s to MiB/s in my head?
Plenty of people do this in their head: multiply by 120,000 instead of using the exact factor 119,209.2896. At 100 that shortcut gives 12,000,000 mebibytes per second, off by 79071.044922 mebibytes per second or about 0.66%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Terabits Per Second to mebibytes per second reference tables
| Terabits Per Second | Mebibytes Per Second |
|---|---|
| 0.5 Tbit/s | 59,604.6 MiB/s |
| 1 Tbit/s | 119,209 MiB/s |
| 2 Tbit/s | 238,419 MiB/s |
| 3 Tbit/s | 357,628 MiB/s |
| 5 Tbit/s | 596,046 MiB/s |
| 10 Tbit/s | 1.19209e+06 MiB/s |
| 20 Tbit/s | 2.38419e+06 MiB/s |
| 25 Tbit/s | 2.98023e+06 MiB/s |
| 50 Tbit/s | 5.96046e+06 MiB/s |
| 75 Tbit/s | 8.9407e+06 MiB/s |
| 100 Tbit/s | 1.19209e+07 MiB/s |
| 250 Tbit/s | 2.98023e+07 MiB/s |
| 500 Tbit/s | 5.96046e+07 MiB/s |
| 1000 Tbit/s | 1.19209e+08 MiB/s |
| 5000 Tbit/s | 5.96046e+08 MiB/s |
Exact factor: 1 terabit per second = 119,209.289551 mebibytes per second.
| Quantity | Tbit/s | MiB/s |
|---|---|---|
| MP3 audio, 320 kbps | 3.2e-07 Tbit/s | 0.03815 MiB/s |
| SD video stream | 3e-06 Tbit/s | 0.3576 MiB/s |
| HD video stream | 8e-06 Tbit/s | 0.9537 MiB/s |
| 4K video stream | 2.5e-05 Tbit/s | 2.98 MiB/s |
| Wired gigabit Ethernet | 0.001 Tbit/s | 119.2 MiB/s |
| Wi-Fi 6 link rate | 0.0012 Tbit/s | 143.1 MiB/s |
Published reference values, converted with the same factor this page uses.