One megabyte per second is exactly 0.001 gigabytes per second, so converting megabytes per second to gigabytes 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. Gigabytes per second is the scale of NVMe storage and memory buses rather than networks.
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. Two tables follow: rounded steps for quick lookup, and a set of real reference quantities converted into gigabytes per second, which is usually more useful than the bare number.
The formula
megabytes per second- The amount you are converting, in megabytes per second
0.001- The exact number of gigabytes per second in one megabyte per second
gigabytes per second- The converted result
How it works, step by step
- Enter the value in megabytes per second.
- It is multiplied by 0.001, the exact factor between the two units.
- The answer is shown in gigabytes per second, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
Wi-Fi 6 link rate: 150 MB/s in gigabytes per second
At 150 MB/s (wi-fi 6 link rate), the same quantity in gigabytes per second is 150 × 0.001 = 0.15 GB/s. One megabyte per second is 0.001 gigabytes per second, so the numbers shrink as expected.
MP3 audio, 320 kbps: 0.04 MB/s in gigabytes per second
At 0.04 MB/s (mp3 audio, 320 kbps), the same quantity in gigabytes per second is 0.04 × 0.001 = 4e-05 GB/s. One megabyte per second is 0.001 gigabytes per second, so the numbers shrink as expected.
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Frequently asked questions
How many gigabytes per second are in one megabyte per second?
Exactly 0.001. 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 gigabytes per second?
gigabytes per second = megabytes per second × 0.001. Reversed, megabytes per second = gigabytes per second ÷ 0.001, which is the same as multiplying by 1000.
Which is the bigger unit, the megabyte per second or the gigabyte per second?
The gigabyte per second. One megabyte per second is only 0.001 of a gigabyte per second, so it takes 1000 megabytes per second to make one gigabyte 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 gigabyte per second?
Gigabytes per second is the scale of NVMe storage and memory buses rather than networks.
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.
Megabytes Per Second to gigabytes per second reference tables
| Megabytes Per Second | Gigabytes Per Second |
|---|---|
| 0.5 MB/s | 0.0005 GB/s |
| 1 MB/s | 0.001 GB/s |
| 2 MB/s | 0.002 GB/s |
| 3 MB/s | 0.003 GB/s |
| 5 MB/s | 0.005 GB/s |
| 10 MB/s | 0.01 GB/s |
| 20 MB/s | 0.02 GB/s |
| 25 MB/s | 0.025 GB/s |
| 50 MB/s | 0.05 GB/s |
| 75 MB/s | 0.075 GB/s |
| 100 MB/s | 0.1 GB/s |
| 250 MB/s | 0.25 GB/s |
| 500 MB/s | 0.5 GB/s |
| 1000 MB/s | 1 GB/s |
| 5000 MB/s | 5 GB/s |
Exact factor: 1 megabyte per second = 0.001 gigabytes per second.
| Quantity | MB/s | GB/s |
|---|---|---|
| MP3 audio, 320 kbps | 0.04 MB/s | 4e-05 GB/s |
| SD video stream | 0.375 MB/s | 0.000375 GB/s |
| HD video stream | 1 MB/s | 0.001 GB/s |
| 4K video stream | 3.125 MB/s | 0.003125 GB/s |
| Wired gigabit Ethernet | 125 MB/s | 0.125 GB/s |
| Wi-Fi 6 link rate | 150 MB/s | 0.15 GB/s |
Published reference values, converted with the same factor this page uses.