Kibibytes per Second to Megabytes per Second (KiB/s to MB/s)

Formula

MB/s = KiB/s × 0.001024

or MB/s = KiB/s ÷ 976.5625

Derivation from SI units:

• 1 KiB/s = 1024 B/s.
• 1 MB/s = 10⁶ B/s = 8 Mbit/s.
• 1 KiB/s = 8192 bps ÷ 8000000 bps per MB/s = 0.001024 MB/s

Both units are defined exactly, so the factor is exact. Kibibyte per Second definition: kibibyte per second; Megabyte per Second definition: megabyte per second.

Worked examples

1. A reading of 25 KiB/s converts to 0.0256 MB/s.
   25 KiB/s × 0.001024 = 0.0256 MB/s
2. A value of 200 KiB/s is 0.2048 MB/s.
   200 KiB/s × 0.001024 = 0.2048 MB/s

Where it's used

Kibibytes per Second are used for linux command-line transfer speeds, while megabytes per second appear in download and copy speeds. Both measure data transfer rate (bandwidth), so the conversion is a fixed factor.

Kibibyte per Second to other data transfer rate units

Frequently asked questions

Sources

• Prefixes for binary multiples (kibi, mebi, gibi…, adopted by the IEC and now in IEC 80000-13), National Institute of Standards and Technology , Prefixes for binary multiples.
• The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Section 3, note on binary prefixes.
• 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: 2026-10-15. Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.