How many megabytes are in a kilobyte?

1 KB = 0.001 MB. To convert any amount, multiply by 0.001.

How do you convert kilobytes to megabytes?

Multiply the number of kilobytes by 0.001 to get megabytes. The formula is shown in the "How it's calculated" section above.

Where does the conversion factor come from?

It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.

Unit converter — Data storage

Kilobytes to megabytes converter

Convert kilobytes (KB) to megabytes (MB). Source-cited conversion factor, exact to the displayed precision.

Results are mathematically exact for the displayed precision. How we calculate.

How it's calculated

Convert kilobytes to megabytes— the formula

Kilobytes convert to megabytes by multiplying by the published conversion factor. The factor below is exact to the precision shown, sourced from the citation under the formula.

MB = KB × 0.001

KB = MB × 1000

IEC 80000-13 + NIST: KB/MB/GB use decimal prefixes (10³, 10⁶, 10⁹). 1 byte = 8 bits.

Questions

Frequently asked questions

How many megabytes are in a kilobyte?
1 KB = 0.001 MB. To convert any amount, multiply by 0.001.
How do you convert kilobytes to megabytes?
Multiply the number of kilobytes by 0.001 to get megabytes. The formula is shown in the "How it's calculated" section above.
Where does the conversion factor come from?
It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.