Megabytes to kilobytes converter

1 MB = 1000 KB (exact). To convert megabytes to kilobytes, multiply by 1000. Example: 10 MB = 10,000 KB.

Result (KB)

KB = MB × 1000 · Swap: Kilobytes to megabytes

Open the full tool: Unit converter →

Megabytes to kilobytes chart

MegabytesKilobytes
0.1 MB100 KB
0.5 MB500 KB
1 MB1000 KB
2 MB2000 KB
5 MB5000 KB
10 MB10,000 KB
20 MB20,000 KB
25 MB25,000 KB
50 MB50,000 KB
100 MB100,000 KB

How to convert megabytes to kilobytes

Formula: KB = MB × 1000. Worked example: 10 MB = 10,000 KB.

About these units

In the decimal system 1 MB = 1,000 KB, which is how most upload limits (“max 2 MB”) are defined, although some systems use 1,024. When a limit is strict, leave a few percent of headroom.

Category: data size. Results on this page are calculated in your browser and rounded to 7 significant digits; the table above uses 6. For other units of data size open the full unit converter, or use the reverse page — kilobytes to megabytes.

FAQ

How many kilobytes are in one MB?

1 MB = 1000 KB exactly. Conversely, 1 KB = 0.001 MB.

What is 100 MB in kilobytes?

100 MB = 100,000 KB.

Is this converter accurate?

Yes — it uses the official definitions (1 MB = 1,000,000 bytes, 1 KB = 1000 bytes) and shows results rounded to 7 significant digits.

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