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PhotoSize

KB to MB converter

1 MB = 1,000 KB, and 1 KB = 1,000 bytes. Some software counts in 1,024s instead; both results are shown.

0.5 MB

0.4883 MB if counted in 1,024s · 500,000 bytes

2000 KB

2048 KB if counted in 1,024s · 2,000,000 bytes

Common sizes

KBMB (1,000)MB (1,024)Bytes
10 KB0.01 MB0.01 MB10,000
20 KB0.02 MB0.02 MB20,000
50 KB0.05 MB0.049 MB50,000
100 KB0.1 MB0.098 MB100,000
200 KB0.2 MB0.195 MB200,000
300 KB0.3 MB0.293 MB300,000
500 KB0.5 MB0.488 MB500,000
1,000 KB1 MB0.977 MB1,000,000
2,000 KB2 MB1.953 MB2,000,000
5,000 KB5 MB4.883 MB5,000,000

Questions

How many KB is 1 MB?

1 MB is 1,000 KB in the standard (SI) system. Some programs, including Windows, count 1 MB as 1,024 KB; strictly that unit is a MiB.

Is 500 KB bigger than 1 MB?

No. 500 KB is half of 1 MB (0.5 MB).

My form says “under 1 MB”. How many KB is that?

Under 1,000 KB to be safe. That passes whether the form counts in 1,000s or 1,024s.

Resize a photo to a KB limit