How to Convert Megabytes to Kibibytes (MB to KiB)
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 kibibytes by hand, with examples and a quick-reference table.
The conversion
To convert megabytes to kibibytes, multiply the value by 976.5625. To go the other way, divide by the same number (or multiply by 0.001024). For a quick estimate, multiply by about 980.
Kibibytes = megabytes × 976.5625
Worked examples
- 3 MB = 2,929.69 KiB
- 12.5 MB = 12,207.03 KiB
- 75 MB = 73,242.19 KiB
Megabytes to Kibibytes table
| Megabytes | Kibibytes |
|---|---|
| 1 MB | 976.5625 KiB |
| 2 MB | 1,953.12 KiB |
| 5 MB | 4,882.81 KiB |
| 10 MB | 9,765.62 KiB |
| 20 MB | 19,531.25 KiB |
| 25 MB | 24,414.06 KiB |
| 50 MB | 48,828.12 KiB |
| 100 MB | 97,656.25 KiB |
| 250 MB | 244,140.62 KiB |
| 500 MB | 488,281.25 KiB |
| 1,000 MB | 976,562.5 KiB |
Common questions
Is MB to KiB 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 Kibibytes to Megabytes 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.
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
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.
Background
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.
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 Kibibytes Converter or browse all data storage converters.
Run your own numbers: Megabytes to Kibibytes Converter