How to Convert Bytes to Mebibytes (B to MiB)
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 bytes into mebibytes by hand, with examples and a quick-reference table.
The conversion
To convert bytes to mebibytes, multiply the value by 9.536743e-07. To go the other way, divide by the same number (or multiply by 1,048,576). Because the factor is tiny, scientific notation keeps the numbers manageable.
Mebibytes = bytes × 9.536743e-07
Worked examples
- 3 B = 2.861023e-6 MiB
- 12.5 B = 1.192093e-5 MiB
- 75 B = 7.152557e-5 MiB
Bytes to Mebibytes table
| Bytes | Mebibytes |
|---|---|
| 1 B | 9.536743e-7 MiB |
| 2 B | 1.907349e-6 MiB |
| 5 B | 4.768372e-6 MiB |
| 10 B | 9.536743e-6 MiB |
| 20 B | 1.907349e-5 MiB |
| 25 B | 2.384186e-5 MiB |
| 50 B | 4.768372e-5 MiB |
| 100 B | 9.536743e-5 MiB |
| 250 B | 0.000238 MiB |
| 500 B | 0.000477 MiB |
| 1,000 B | 0.000954 MiB |
Common questions
Is B 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 Bytes converter.
Mistakes to avoid
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.
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Background
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
For any value, use the Bytes to Mebibytes Converter or browse all data storage converters.
Run your own numbers: Bytes to Mebibytes Converter