Megabytes to mebibytes
1 megabyte = 0.953674 mebibytes
Type a value in megabytes (MB) to get mebibytes (MiB) straight away. A megabyte is smaller than a mebibyte, so the number goes down. Both units belong to data storage, measured here against the byte.
1 MB = 0.95367432 MiB
Formula
MiB = MB × 0.95367432
One megabyte is 0.95367432 mebibytes, so multiply by that factor. You can also divide by 1.04858, the number of megabytes in one mebibyte. Here MB is the value in megabytes and MiB is the result in mebibytes.
Worked example: 700 megabytes × 0.95367432 = 667.572 mebibytes.
Megabytes to mebibytes table
| megabytes (MB) | mebibytes (MiB) |
|---|---|
| 1 MB | 0.953674 MiB |
| 2 MB | 1.90735 MiB |
| 3 MB | 2.86102 MiB |
| 4 MB | 3.8147 MiB |
| 5 MB | 4.76837 MiB |
| 6 MB | 5.72205 MiB |
| 7 MB | 6.67572 MiB |
| 8 MB | 7.62939 MiB |
| 9 MB | 8.58307 MiB |
| 10 MB | 9.53674 MiB |
| 15 MB | 14.3051 MiB |
| 20 MB | 19.0735 MiB |
| 25 MB | 23.8419 MiB |
| 30 MB | 28.6102 MiB |
| 40 MB | 38.147 MiB |
| 50 MB | 47.6837 MiB |
| 60 MB | 57.2205 MiB |
| 75 MB | 71.5256 MiB |
| 100 MB | 95.3674 MiB |
Everyday megabytes in mebibytes
| What it is | MB | MiB |
|---|---|---|
| a minute of compressed MP3 (about) | 1 MB | 0.953674 MiB |
| a phone photo | 5 MB | 4.76837 MiB |
| an email attachment limit | 25 MB | 23.8419 MiB |
| a short HD video | 100 MB | 95.3674 MiB |
| a CD | 700 MB | 667.572 MiB |
Quick estimate in your head
Multiply by about 0.95. For 700 MB that gives 665 MiB against an exact 667.572 MiB, an error of 0.4%.
Watch out for
- A MiB is 4.86% larger than a MB. Older software labels MiB as MB.
About the units
Megabyte (MB). 1,000,000 bytes (decimal). Windows shows MiB values but labels them MB.
Mebibyte (MiB). 2²⁰ = 1,048,576 bytes. The binary unit behind most memory and OS file sizes.
Going the other way, 1 mebibyte is 1.04858 megabytes.
Questions
How many mebibytes are in 1 megabyte?
1 megabyte is 0.953674 mebibytes, and 1 mebibyte is 1.04858 megabytes.
How do I convert megabytes to mebibytes?
Use MiB = MB × 0.95367432. For example, 700 megabytes × 0.95367432 = 667.572 mebibytes.
Why does my drive show less space than advertised?
Makers use decimal units (1 GB = 10⁹ bytes) while many operating systems count in binary (1 GiB = 2³⁰ bytes). A 1 TB drive therefore shows about 931 GiB.
How much is a CD in mebibytes?
700 MB is 667.572 MiB.
Source for the conversion factor: NIST: prefixes for binary multiples (IEC 80000-13).
Related conversions
- mebibytes to megabytes
- megabytes to gigabytes
- megabytes to kilobytes
- mebibytes to gibibytes
- gibibytes to mebibytes
- bits to bytes