How to Convert Megabytes to Mebibytes (MB to MiB)

Updated 5 Oct 2026 in Unit Converters

Data conversions explain why a 1 TB drive shows less space on your computer and help compare mobile plans sold in gigabytes. This guide shows how to convert megabytes into mebibytes by hand, with examples and a quick-reference table.

The conversion

To convert megabytes to mebibytes, multiply the value by 0.9536743164. To go the other way, divide by the same number (or multiply by 1.048576). For a quick estimate, multiply by about 0.95.

Mebibytes = megabytes × 0.9536743164

Worked examples

Megabytes to Mebibytes table

MegabytesMebibytes
1 MB0.953674 MiB
2 MB1.9073 MiB
5 MB4.7684 MiB
10 MB9.5367 MiB
20 MB19.0735 MiB
25 MB23.8419 MiB
50 MB47.6837 MiB
100 MB95.3674 MiB
250 MB238.4186 MiB
500 MB476.8372 MiB
1,000 MB953.6743 MiB

Common questions

Is MB to MiB exact?

The factors used here are the internationally defined values where they exist; results are rounded for display only.

How do I convert back?

Use the Mebibytes to Megabytes converter.

Mistakes to avoid

Multiplying when you should divide

Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.

Mixing similar-sounding units

US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.

Rounding the factor too early

Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.

Background

A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.

Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.

Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.

For any value, use the Megabytes to Mebibytes Converter or browse all data storage converters.

Run your own numbers: Megabytes to Mebibytes Converter

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