How do I convert kilobytes back to megabytes?

Use the reverse converter: 1 kilobyte equals 0.001 MB.

Is this converter accurate?

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

Megabytes to Kilobytes Converter (MB to KB)

Formula

To convert megabytes to kilobytes, multiply the value by 1000.

KB = MB × 1000

Example calculation

Convert 10 MB to KB:

10 MB × 1000 = 10000 KB

Conversion table

megabytes → kilobytes
MB	KB
1	1000.0000
2	2000.0000
3	3000.0000
4	4000.0000
5	5000.0000
6	6000.0000
7	7000.0000
8	8000.0000
9	9000.0000
10	10000.0000
15	15000.0000
20	20000.0000
25	25000.0000
30	30000.0000
35	35000.0000
40	40000.0000
45	45000.0000
50	50000.0000
55	55000.0000
60	60000.0000
65	65000.0000
70	70000.0000
75	75000.0000
80	80000.0000
85	85000.0000
90	90000.0000
95	95000.0000
100	100000.0000
200	200000.0000
500	500000.0000
1000	1000000.0000

Decimal vs binary: KB, MB and GB use powers of 1,000 (SI), while KiB, MiB and GiB use powers of 1,024. Storage makers use decimal units; many operating systems and memory sizes use binary ones, which is why a "500 GB" drive shows less space.

About the units

Megabyte (MB): 1,000,000 bytes in the decimal system, used by storage makers and file sizes.
Kilobyte (KB): 1,000 bytes in the decimal (SI) system. Often confused with the kibibyte (1,024 bytes).

Frequently asked questions

How do I convert megabytes to kilobytes?: To convert megabytes to kilobytes, multiply the value by 1000.
How many kilobytes are in 1 megabyte?: 1 megabyte equals 1000 KB.
How many kilobytes are in 10 megabytes?: 10 MB equals 10000 KB.
How do I convert kilobytes back to megabytes?: Use the reverse converter: 1 kilobyte equals 0.001 MB.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.