One megabyte per second is exactly 8e-06 terabits per second, so converting megabytes per second to terabits per second is a single multiplication. Enter any figure and the result appears as you type — the arithmetic runs in your browser, so nothing is sent anywhere.
Megabytes per second is the honest measure of transfer speed, and the unit disk benchmarks use. An 8 MB/s transfer is a 64 Mbps link running flat out. 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 terabits per second so the number you get has something to be compared against.
The formula
megabytes per second- The amount you are converting, in megabytes per second
8e-06- The exact number of terabits per second in one megabyte per second
terabits per second- The converted result
How it works, step by step
- Enter the value in megabytes per second.
- It is multiplied by 8e-06, the exact factor between the two units.
- The answer is shown in terabits per second, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
4K video stream: 3.12 MB/s in terabits per second
Take 4k video stream, roughly 3.12 MB/s. The conversion is a single multiplication — 3.12 × 8e-06 — giving 2.496e-05 Tbit/s. Because the relationship is proportional, doubling the input doubles the answer to 4.992e-05 Tbit/s.
HD video stream: 1 MB/s in terabits per second
Take hd video stream, roughly 1 MB/s. The conversion is a single multiplication — 1 × 8e-06 — giving 8e-06 Tbit/s. Because the relationship is proportional, doubling the input doubles the answer to 1.6e-05 Tbit/s.
How to read your score
Frequently asked questions
How many terabits per second are in one megabyte per second?
Exactly 8e-06. 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 megabytes per second to terabits per second?
terabits per second = megabytes per second × 8e-06. Reversed, megabytes per second = terabits per second ÷ 8e-06, which is the same as multiplying by 125,000.
Which is the bigger unit, the megabyte per second or the terabit per second?
The terabit per second. One megabyte per second is only 8e-06 of a terabit per second, so it takes 125,000 megabytes per second to make one terabit 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 megabyte per second?
Megabytes per second is the honest measure of transfer speed, and the unit disk benchmarks use. An 8 MB/s transfer is a 64 Mbps link running flat out.
What is a terabit per second?
Terabits per second describes backbone and submarine cable capacity rather than anything you can buy for a house.
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 MB/s to Tbit/s in my head?
Plenty of people do this in their head: divide by 120,000 instead of using the exact factor 0.000008. At 100 that shortcut gives 0.00083333333 terabits per second, off by 0.000033 terabits per second or about 4.17%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Megabytes Per Second to terabits per second reference tables
| Megabytes Per Second | Terabits Per Second |
|---|---|
| 0.5 MB/s | 4e-06 Tbit/s |
| 1 MB/s | 8e-06 Tbit/s |
| 2 MB/s | 1.6e-05 Tbit/s |
| 3 MB/s | 2.4e-05 Tbit/s |
| 5 MB/s | 4e-05 Tbit/s |
| 10 MB/s | 8e-05 Tbit/s |
| 20 MB/s | 0.00016 Tbit/s |
| 25 MB/s | 0.0002 Tbit/s |
| 50 MB/s | 0.0004 Tbit/s |
| 75 MB/s | 0.0006 Tbit/s |
| 100 MB/s | 0.0008 Tbit/s |
| 250 MB/s | 0.002 Tbit/s |
| 500 MB/s | 0.004 Tbit/s |
| 1000 MB/s | 0.008 Tbit/s |
| 5000 MB/s | 0.04 Tbit/s |
Exact factor: 1 megabyte per second = 8e-06 terabits per second.
| Quantity | MB/s | Tbit/s |
|---|---|---|
| MP3 audio, 320 kbps | 0.04 MB/s | 3.2e-07 Tbit/s |
| SD video stream | 0.375 MB/s | 3e-06 Tbit/s |
| HD video stream | 1 MB/s | 8e-06 Tbit/s |
| 4K video stream | 3.125 MB/s | 2.5e-05 Tbit/s |
| Wired gigabit Ethernet | 125 MB/s | 0.001 Tbit/s |
| Wi-Fi 6 link rate | 150 MB/s | 0.0012 Tbit/s |
Published reference values, converted with the same factor this page uses.