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Is 1KB = 1.024 bytes OR 1.000 bytes?


Everyone keeps saying that

1'000 KB = 1 MB (decimal) -> Megabyte (MB) 10^6 Byte = 1 000 000 Byte

1'024 KB = 1 MiB (binary) -> Mebibyte (MiB) 2^20 Byte = 1 048 576 Byte

But when you look at windows properties of a folder, you get:

enter image description here

Which clearly uses 1KB = 1024bytes (and it's not this "MiB" but still uses 1024). So, what's the veredict?


Solution

  • Is 1KB = 1.024 bytes OR 1.000 ?

    Yes, in causal discourse, it is either one - context sensitive.

    • Memory size tends to use 1024.

    • File size tends to use 1000.

    Exceptions are common.

    Else see Kilobyte.

    Pedantic concerns like this include using K, when k should be used as in 1kB.