Megabytes to Kilobytes Converter MB → KB

1 megabyte (MB) = 1000 kilobytes (KB). Type a value below — the conversion happens instantly, entirely on your device.

From

1 MB = 1000 KB

Precision

1 megabytes = 1000 kilobytes

1 × 1000 = 1000

1 MB equals 1000 KB, so multiplying by 1000 converts the value. The result describes the exact same quantity — only the measuring stick changes.

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How to convert megabytes to kilobytes

kilobytes = megabytes × 1000 — multiply the megabyte value by 1000.

Example: 10 MB = 10,000 KB.

To convert the other way: megabytes = kilobytes ÷ 1000 — or use the dedicated KB to MB converter .

Megabytes to Kilobytes conversion table

Megabytes (MB)	Kilobytes (KB)
0.1	100
0.25	250
0.5	500
1	1000
2	2000
3	3000
4	4000
5	5000
6	6000
7	7000
8	8000
9	9000
10	10,000
15	15,000
20	20,000
25	25,000
30	30,000
40	40,000
50	50,000
75	75,000
100	100,000
250	250,000
500	500,000
1000	1,000,000

About the units

What is a megabyte?

A megabyte (MB) is 1,000,000 bytes (decimal standard). A smartphone photo is typically 2–5 MB; an MP3 song about 1 MB per minute.

What is a kilobyte?

A kilobyte (KB) is 1,000 bytes in the SI decimal standard. A short email is a few kilobytes; a typical web page weighs a few hundred.

Frequently asked questions

How many kilobytes are in 1 megabyte?

1 megabyte (MB) = 1000 kilobytes (KB).

What is the formula to convert megabytes to kilobytes?

kilobytes = megabytes × 1000 — multiply the megabyte value by 1000.

How do I convert MB to KB without a calculator?

Multiply by 1000 for a close estimate. Exact factor: 1 MB = 1000 KB.

Is this MB-to-KB converter accurate and private?

Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.