Kilobytes to Mebibytes Converter

About the kb to mib calculation

One kilobyte is exactly 0.00095367 mebibytes, so converting between them is a single multiplication. Enter any value above and the result updates as you type. Decimal kilobyte — 1,000 bytes. Windows and macOS often mean 1,024 when they write "KB". Binary megabyte — 1,024² bytes. What operating systems usually mean when they display "MB".

Formula

MiB = KB × 0.00095367

1 KB = 0.00095367 MiB
1 MiB = 1,048.58 KB

Worked example

To convert 500 KB, multiply by 0.00095367: 500 × 0.00095367 = 0.476837 MiB.

Frequently asked questions

How many mebibytes are in a kilobyte?

There are 0.00095367 mebibytes in one kilobyte. To convert any amount, multiply the number of kilobytes by 0.00095367.

How do I convert mebibytes back to kilobytes?

Divide instead of multiplying, or equivalently multiply by 1,048.58. One mebibyte is 1,048.58 kilobytes.

Is this conversion exact?

Yes, provided both sides use the same convention. Decimal units (KB, MB, GB) are powers of 1,000 and binary units (KiB, MiB, GiB) are powers of 1,024. Both are exact — the confusion comes from software labelling binary values with decimal names.

Where is each of these units used?

Kilobytes: decimal kilobyte — 1,000 bytes. Windows and macOS often mean 1,024 when they write "KB". Mebibytes: binary megabyte — 1,024² bytes. What operating systems usually mean when they display "MB".

Sources

• IEC 80000-13 — binary and decimal prefixes for information units