How to Convert Megabytes to Kilobytes (MB to KB)
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 kilobytes by hand, with examples and a quick-reference table.
The conversion
To convert megabytes to kilobytes, multiply the value by 1,000. To go the other way, divide by the same number (or multiply by 0.001). For a quick estimate, multiply by about 1,000.
Kilobytes = megabytes × 1,000
Worked examples
- 3 MB = 3,000 KB
- 12.5 MB = 12,500 KB
- 75 MB = 75,000 KB
Megabytes to Kilobytes table
| Megabytes | Kilobytes |
|---|---|
| 1 MB | 1,000 KB |
| 2 MB | 2,000 KB |
| 5 MB | 5,000 KB |
| 10 MB | 10,000 KB |
| 20 MB | 20,000 KB |
| 25 MB | 25,000 KB |
| 50 MB | 50,000 KB |
| 100 MB | 100,000 KB |
| 250 MB | 250,000 KB |
| 500 MB | 500,000 KB |
| 1,000 MB | 1,000,000 KB |
Common questions
Is MB to KB 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 Kilobytes to Megabytes converter.
Mistakes to avoid
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.
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.
Background
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.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
For any value, use the Megabytes to Kilobytes Converter or browse all data storage converters.
Run your own numbers: Megabytes to Kilobytes Converter