This page converts mebibytes per second into kilobytes per second using the factor 1048.576, and shows the reverse figure alongside it. Both units measure how much data moves per second, which is why one number does the whole job.
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. Kilobytes per second is what a download dialog shows on a slow connection: 1 kB/s is 8 kbit/s.
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. The tables underneath give both a plain step-by-step lookup and a list of real quantities expressed in kilobytes per second, so you can sanity-check whether your answer is a plausible size.
The formula
mebibytes per second- The amount you are converting, in mebibytes per second
1048.576- The exact number of kilobytes per second in one mebibyte per second
kilobytes per second- The converted result
How it works, step by step
- Enter the value in mebibytes per second.
- It is multiplied by 1048.576, the exact factor between the two units.
- The answer is shown in kilobytes 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: 119 MiB/s in kilobytes per second
Wired gigabit Ethernet comes to about 119 MiB/s. Multiplying by the factor: 119 × 1048.58 = 124,781 kB/s. Dividing the answer back by 1048.58 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
MP3 audio, 320 kbps: 0.0381 MiB/s in kilobytes per second
MP3 audio, 320 kbps comes to about 0.0381 MiB/s. Multiplying by the factor: 0.0381 × 1048.58 = 39.9507 kB/s. Dividing the answer back by 1048.58 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 kilobytes per second are in one mebibyte per second?
Exactly 1048.576. 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 mebibytes per second to kilobytes per second?
kilobytes per second = mebibytes per second × 1048.576. Reversed, mebibytes per second = kilobytes per second ÷ 1048.576, which is the same as multiplying by 0.000953674316406.
Which is the bigger unit, the mebibyte per second or the kilobyte per second?
The mebibyte per second. One mebibyte per second equals 1048.58 kilobytes 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 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.
What is a kilobyte per second?
Kilobytes per second is what a download dialog shows on a slow connection: 1 kB/s is 8 kbit/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.
Mebibytes Per Second to kilobytes per second reference tables
| Mebibytes Per Second | Kilobytes Per Second |
|---|---|
| 0.5 MiB/s | 524.288 kB/s |
| 1 MiB/s | 1048.58 kB/s |
| 2 MiB/s | 2097.15 kB/s |
| 3 MiB/s | 3145.73 kB/s |
| 5 MiB/s | 5242.88 kB/s |
| 10 MiB/s | 10,485.8 kB/s |
| 20 MiB/s | 20,971.5 kB/s |
| 25 MiB/s | 26,214.4 kB/s |
| 50 MiB/s | 52,428.8 kB/s |
| 75 MiB/s | 78,643.2 kB/s |
| 100 MiB/s | 104,858 kB/s |
| 250 MiB/s | 262,144 kB/s |
| 500 MiB/s | 524,288 kB/s |
| 1000 MiB/s | 1.04858e+06 kB/s |
| 5000 MiB/s | 5.24288e+06 kB/s |
Exact factor: 1 mebibyte per second = 1048.576 kilobytes per second.
| Quantity | MiB/s | kB/s |
|---|---|---|
| MP3 audio, 320 kbps | 0.03815 MiB/s | 40 kB/s |
| SD video stream | 0.3576 MiB/s | 375 kB/s |
| HD video stream | 0.9537 MiB/s | 1000 kB/s |
| 4K video stream | 2.98 MiB/s | 3125 kB/s |
| Wired gigabit Ethernet | 119.2 MiB/s | 1.25e+05 kB/s |
| Wi-Fi 6 link rate | 143.1 MiB/s | 1.5e+05 kB/s |
Published reference values, converted with the same factor this page uses.