How do I convert kilobytes to megabytes?

Multiply the kilobyte value by 0.001. So x kB × 0.001 = the equivalent in MB.

What is 5 kilobytes in megabytes?

5 kilobytes equals 0.005 megabytes.

What is 10 kilobytes in megabytes?

10 kilobytes equals 0.01 megabytes.

What is 100 kilobytes in megabytes?

100 kilobytes equals 0.1 megabytes.

How do I convert back from megabytes to kilobytes?

Multiply the megabyte value by 1000. For example, 1 MB = 1000 kB.

Is the kilobyte bigger than the megabyte?

No. 1 kilobyte is smaller than 1 megabyte. It takes 1000 kilobytes to equal 1 megabyte.

Are these conversion factors exact?

Yes. The factor of 0.001 is derived directly from the SI definitions of kilobyte and megabyte.

Kilobytes to Megabytes Converter

1 kB = 0.001 MB (kilobyte → megabyte)

1 kB = 0.001 MB

1 kilobyte equals 0.001 megabytes. To convert kilobytes to megabytes, multiply the kilobyte value by 0.001. For quick reference: 1 kB = 0.001 MB, 5 kB = 0.005 MB, 10 kB = 0.01 MB, 100 kB = 0.1 MB.

From

0.001

FormulaMegabytes = Kilobytes × 0.001

Quick

When to use kilobytes → megabytes

Kilobytes to megabytes divides by 1000 (SI decimal). A 2500 kB image is 2.5 MB; a 500 kB web page is 0.5 MB. Network transfer sizes, email-attachment limits, and most modern file sizes use the decimal megabyte. If your source counts in binary kibibytes (1024 B), the divisor is 1024 and the result drifts about 2.4 % per prefix step — small at this scale but compounding as you climb toward gigabytes.

How to convert kilobytes to megabytes

Take your value
Start with your value in kilobytes.
Multiply by 0.001
Multiply the kilobyte value by 0.001. This is the exact conversion factor from kilobytes to megabytes.
Read the result
The product is your value in megabytes. For example, 5 kB × 0.001 = 0.005 MB.

Conversion formula

The exact factor from kilobytes to megabytes is 0.001.

Megabytes = Kilobytes × 0.001

Kilobytes to Megabytes conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from kilobytes to megabytes
Kilobytes (kB)	Megabytes (MB)
1 kB	0.001 MB
8 kB	0.008 MB
16 kB	0.016 MB
64 kB	0.064 MB
100 kB	0.1 MB
256 kB	0.256 MB
500 kB	0.5 MB
512 kB	0.512 MB
1000 kB	1 MB
1024 kB	1.024 MB
2000 kB	2 MB
2048 kB	2.048 MB
4096 kB	4.096 MB
5000 kB	5 MB
8192 kB	8.192 MB
10000 kB	10 MB
16384 kB	16.384 MB
25000 kB	25 MB
32768 kB	32.768 MB
50000 kB	50 MB
65536 kB	65.536 MB
100000 kB	100 MB
131072 kB	131.07 MB
250000 kB	250 MB
500000 kB	500 MB
524288 kB	524.29 MB
1000000 kB	1000 MB
1048576 kB	1048.6 MB
2000000 kB	2000 MB
5000000 kB	5000 MB
10000000 kB	10000 MB
50000000 kB	50000 MB
100000000 kB	100000 MB
500000000 kB	500000 MB
1000000000 kB	1000000 MB
2000000000 kB	2000000 MB
5000000000 kB	5000000 MB
10000000000 kB	10000000 MB
50000000000 kB	50000000 MB
100000000000 kB	100000000 MB
500000000000 kB	500000000 MB
1000000000000 kB	1000000000 MB
2000000000000 kB	2000000000 MB
5000000000000 kB	5000000000 MB
10000000000000 kB	10000000000 MB
100000000000000 kB	100000000000 MB
1000000000000000 kB	1000000000000 MB
10000000000000000 kB	10000000000000 MB
100000000000000000 kB	100000000000000 MB
1000000000000000000 kB	1.0000 × 10^15 MB

Real-world reference

A short text email is around 5–10 kB. A typical web font weight is 30–50 kB.

Frequently asked questions

How many megabytes are in 1 kilobyte?: 1 kilobyte equals 0.001 megabytes.
How do I convert kilobytes to megabytes?: Multiply the kilobyte value by 0.001. So x kB × 0.001 = the equivalent in MB.
What is 5 kilobytes in megabytes?: 5 kilobytes equals 0.005 megabytes.
What is 10 kilobytes in megabytes?: 10 kilobytes equals 0.01 megabytes.
What is 100 kilobytes in megabytes?: 100 kilobytes equals 0.1 megabytes.
How do I convert back from megabytes to kilobytes?: Multiply the megabyte value by 1000. For example, 1 MB = 1000 kB.
Is the kilobyte bigger than the megabyte?: No. 1 kilobyte is smaller than 1 megabyte. It takes 1000 kilobytes to equal 1 megabyte.
Are these conversion factors exact?: Yes. The factor of 0.001 is derived directly from the SI definitions of kilobyte and megabyte.

About the kilobyte and the megabyte

The kilobyte

The kilobyte (kB) equals exactly 1,000 bytes in the SI/IEC decimal convention. Most modern OS file managers and storage-vendor marketing use this definition. Older operating systems (Windows up to Vista) used 1 kB = 1,024 B — that value is now strictly called the kibibyte (KiB).

The megabyte

The megabyte (MB) equals 1,000,000 bytes (decimal) or 1,048,576 bytes (binary, formally 'mebibyte' MiB — a roughly 5% difference). Used for music files, photographs, and most everyday document sizes.

Megabytes to Kilobytes