Megabyte per Second to Kilobyte per Second Converter
One Megabyte per Second equals 1000 Kilobyte per Second (1 MB-s = 1000 KB-s). Multiply a Megabyte per Second value by 1000 to get the equivalent in Kilobyte per Second. The calculator is above; the formula and worked examples are below.
Formula
KB-s = MB-s × 1000
Multiply the Megabyte per Second value by 1000 to get the equivalent value in Kilobyte per Second.
Example Conversions
1 Megabyte per Second (MB-s)
1000 Kilobyte per Second (KB-s)
5 Megabyte per Second (MB-s)
5000 Kilobyte per Second (KB-s)
10 Megabyte per Second (MB-s)
10000 Kilobyte per Second (KB-s)
25 Megabyte per Second (MB-s)
25000 Kilobyte per Second (KB-s)
100 Megabyte per Second (MB-s)
100000 Kilobyte per Second (KB-s)
Conversion Table
| Megabyte per Second (MB-s) | Kilobyte per Second (KB-s) |
|---|---|
| 0.1 | 100 |
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 250 | 250000 |
| 500 | 500000 |
| 1000 | 1000000 |
How to Convert Manually
Use these steps to convert Megabyte per Second values to Kilobyte per Second without the calculator.
- Write down the value in Megabyte per Second (MB-s) that you want to convert.
- Multiply that value by 1000.
- For example, 10 Megabyte per Second × 1000 = 10000 Kilobyte per Second.
- Label the result as Kilobyte per Second (KB-s).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Megabyte per Second and one Kilobyte per Second.
About Megabyte per Second and Kilobyte per Second
The megabyte per second (MB/s) equals 8,000,000 bits per second (8 Mbps). It is the standard unit for SSD and HDD benchmark results, USB transfer speeds, and file-copy throughput displays. The kilobyte per second (KB/s) equals 8,000 bits per second (8 Kbps). It appears in file manager copy speed readouts and FTP transfer statistics. One Megabyte per Second equals 1000 Kilobyte per Second (1 MB-s = 1000 KB-s). Megabyte per Second is used in SSD sequential read/write benchmarks (500–7,000 MB/s) and in USB 3.0 (up to ~625 MB/s) and USB 3.2 transfers. Kilobyte per Second is used in file manager copy and move operations.
Precision and Rounding:Data transfer rates are almost always quoted in SI decimal prefixes (1 Kbps = 1,000 bps), not binary (1 Kibps = 1,024 bps). Internet service providers universally use SI prefixes. When converting to bytes per second, remember 1 byte = 8 bits exactly. Never round this factor.
See our guide to megabits vs. megabytes if you're unsure which one your download speed is quoted in.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15Megabyte per Second equals15000Kilobyte per Second.
15 MB-s × 1000 = 15000 KB-s
FAQ
How do I convert Megabyte per Second to Kilobyte per Second?
Multiply the Megabyte per Second value by 1000 to get the equivalent value in Kilobyte per Second.
What is the formula for Megabyte per Second to Kilobyte per Second?
The formula is KB-s = MB-s × 1000.
How many Kilobyte per Second are in 1 Megabyte per Second?
1 Megabyte per Second equals 1000 Kilobyte per Second.
Can I convert Kilobyte per Second back to Megabyte per Second?
Yes. 1 Kilobyte per Second equals 0.001 Megabyte per Second, and the related converter can reverse the calculation.
What are common names for Megabyte per Second and Kilobyte per Second?
Megabyte per Second is shown as MB-s and may also be searched as MB/s, megabytes per second, mB/s. Kilobyte per Second is shown as KB-s and may also be searched as KB/s, kilobytes per second, kB/s.
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