Megabytes per Second to Kilobytes per Second (MB/s to kB/s)
1 megabyte per second (MB/s) = 1000 kilobytes per second (kB/s). 1 kB/s = 0.001 MB/s. Example: 15 MB/s = 15 × 1000 = 15000 kB/s.
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1 MB/s = 1000 kB/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk megabyte per second to kilobyte per second converter to paste a column from Excel.
How to Convert Megabyte per Second to Kilobyte per Second
- 1 MB/s = 1000 kB/s
- 1 kB/s = 0.001 MB/s
- Example: convert 15 MB/s to kB/s: 15 MB/s = 15 × 1000 kB/s = 15000 kB/s
Formula
kB/s = MB/s × 1000
Derivation from SI units:
- 1 MB/s = 10⁶ B/s = 8 Mbit/s.
- 1 kB/s = 1000 B/s = 8000 bit/s.
- 1 MB/s = 8000000 bps ÷ 8000 bps per kB/s = 1000 kB/s
Both units are defined exactly, so the factor is exact. Megabyte per Second definition: megabyte per second; Kilobyte per Second definition: kilobyte per second.
Worked examples
- A reading of 25 MB/s converts to 25000 kB/s.
25 MB/s × 1000 = 25000 kB/s - A value of 200 MB/s is 200000 kB/s.
200 MB/s × 1000 = 200000 kB/s
Megabyte per Second to Kilobyte per Second conversion table
| Megabytes per Second (MB/s) | Kilobytes per Second (kB/s) |
|---|---|
| 1 MB/s | 1000 kB/s |
| 5 MB/s | 5000 kB/s |
| 10 MB/s | 10000 kB/s |
| 25 MB/s | 25000 kB/s |
| 50 MB/s | 50000 kB/s |
| 100 MB/s | 100000 kB/s |
| 200 MB/s | 200000 kB/s |
| 300 MB/s | 300000 kB/s |
| 500 MB/s | 500000 kB/s |
| 1000 MB/s | 1000000 kB/s |
Where it's used
Megabytes per Second are used for download and copy speeds, while kilobytes per second appear in download speeds on slow links. Both measure data transfer rate (bandwidth), so the conversion is a fixed factor.
Megabyte per Second to other data transfer rate units
| Conversion | 1 MB/s equals |
|---|---|
| megabyte per second to kilobyte per second | 1000 kB/s |
| megabyte per second to megabit per second | 8 Mbps |
| megabyte per second to kilobit per second | 8000 kbps |
| megabyte per second to gigabit per second | 0.008 Gbps |
| megabyte per second to gigabyte per second | 0.001 GB/s |
| megabyte per second to bit per second | 8000000 bps |
| megabyte per second to byte per second | 1000000 B/s |
| megabyte per second to mebibyte per second | 0.9536743164 MiB/s |
Show 2 more units
| megabyte per second to terabit per second | 0.000008 Tbps |
|---|---|
| megabyte per second to kibibyte per second | 976.5625 KiB/s |
Frequently asked questions
How many kilobytes per second are in 1 megabyte per second?
1 MB/s = 1000 kB/s.
How do I convert megabytes per second to kilobytes per second?
Multiply the value in MB/s by 1000. For example, 15 MB/s × 1000 = 15000 kB/s.
Is the MB/s to kB/s conversion exact?
Yes. Both units are defined exactly, and 1 MB/s is exactly 1000 kB/s.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Megabytes per Second to Kilobytes per Second (MB/s to kB/s). Retrieved October 25, 2026, from https://scientificconverters.com/data-rate/megabytes-per-second-to-kilobytes-per-second/
IEEE
Scientific Converters, "Megabytes per Second to Kilobytes per Second (MB/s to kB/s)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-rate/megabytes-per-second-to-kilobytes-per-second/