Data Storage / MB → kB
Convert Megabytes to Kilobytes
Convert bit and byte counts with explicit decimal and binary prefixes. Convert Megabytes (MB) to Kilobytes (kB). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Kilobytes to Megabytes →
How to convert megabytes to kilobytes
One byte is 8 bits. Decimal kilo/mega/giga use powers of 1000; binary kibi/mebi/gibi use powers of 1024. Marketing capacity and operating-system displays can therefore differ.
Use x for the value in MB, b for the intermediate value in B, and y for the result in kB.
kB = MB × 1000000 ÷ 1000
Worked examples
10 MB ≈ 10000 kB
Step 1: (10 × 1000000) ≈ 10000000 B.
Step 2: 10000000 ÷ 1000 ≈ 10000 kB.20 MB ≈ 20000 kB
Step 1: (20 × 1000000) ≈ 20000000 B.
Step 2: 20000000 ÷ 1000 ≈ 20000 kB.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Megabytes
Megabytes (MB) measures data storage under the conventions above. The base value in B is (x × 1000000), where x is the numerical value in MB. Factors shown here are rounded for display; calculations use the stored factor.
About Kilobytes
Kilobytes (kB) measures data storage under the conventions above. The base value in B is (x × 1000), where x is the numerical value in kB. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
For a different quantity or formatting task, see the related other conversion tools.
Megabytes to kilobytes reference table
| Megabytes (MB) | Kilobytes (kB) |
|---|---|
| 1 | 1000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 1000 | 1000000 |
Browse every data storage conversion →