kb to mb converter

How to convert kilobytes to megabytes

A kilobyte here is 1000 bytes and a megabyte is 1,000,000 bytes. Divide kilobytes by 1000. One thousand KB is 1 MB. A kibibyte is 1024 bytes, so 1024 KB is 1.024 MB, while 1024 KiB is 1 MiB. Email gateways, API limits, and 'max upload 500 KB' boxes are where this bites, because some of them mean 500 × 1024 and some mean 500 × 1000. This page will not guess. It divides by 1000.

A payload measured in KB that a dashboard graphs in MB, or a font file, or a log line budget. 2048 KB is 2.048 MB. 1,048,576 KB is 1048.576 MB, which is 1 GiB worth of kibibytes only if the source was KiB. If the tool said KiB, use the binary row in the unit converter.

Exact formula

FormulaMB = KB ÷ 1000

MB = KB ÷ 1000 One KB is 0.001 MB. Ten KB is 0.01 MB. The worked example below uses that same conversion.

Conversion table

The kilobytes column runs from 1 KB (0.001 MB) through 1048576 KB (1048.58 MB).

Worked example: Kilobytes to Megabytes

One thousand kilobytes is 1 MB when both units are the decimal SI pair. 1024 KB is 1.024 MB, which is not 1 MiB. A mebibyte is 1024 KiB. 2048 KB is 2.048 MB. Upload limits written '500 KB' sometimes mean 500 × 1000 and sometimes 500 × 1024. This page will not guess. It divides by 1000. Kb with a lowercase b is often kilobits, an eighth of a kilobyte. Windows dialogs that say KB for 1024 bytes are the JEDEC habit, not this factor.

Pitfalls for kilobytes to megabytes

• KB and KiB differ by 2.4 percent. Over a large transfer that is not a rounding error.
• Some Windows dialogs say KB for 1024 bytes. The JEDEC habit and the SI prefix disagree.
• Capitalization is a weak signal. kB, KB, and Kb (kilobit) are three different traditions.
• Dividing by 1024 on this page is the wrong operation. The factor stored for KB is 1000.