Utilnaro
Category: Converters

Data Size Converter

Convert bytes, KB, MB, GB, TB and the KiB/MiB/GiB units.

Runs in your browserProcessed locally. Your input never leaves your device.

Converting Data size.

Convert from
Convert to

You can type here too — it converts the other way.

1 MB = 0.001 GB

Exact by definition

The same value in other units

bit
8000000 b
byte
1000000 B
kilobyte
1000 kB
terabyte
1e-6 TB
kibibyte
976.563 KiB
mebibyte
0.953674 MiB
gibibyte
0.000931323 GiB
tebibyte
9.09495e-7 TiB
Settings

Digits kept in the answer. Automatic keeps six, which hides floating-point noise without losing anything real.

Convert a whole list

Paste one conversion per line, written the way you would say it: "5 km to mi". Handy for a column copied out of a spreadsheet.

Details

About this tool

Converts between decimal units (kB, MB, GB, based on 1000) and binary units (KiB, MiB, GiB, based on 1024), plus bits and bytes. Keeping them apart is the whole point: it is why a drive sold as 1 TB shows up in Windows as about 931 GB.

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Ready-made conversions

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Good to know

Questions people actually ask

Why does my 1 TB drive show as 931 GB?
Because two different units share a name. The manufacturer sells 1 TB = 1 000 000 000 000 bytes; Windows divides by 1024 three times and labels the result "GB" when it is really 931 GiB. Nothing is missing - it is the same bytes counted in a different unit.
Is a megabyte 8 megabits?
Yes, and the distinction matters for internet speeds: a 100 Mb/s connection downloads at about 12.5 MB/s. Note the capital B for bytes and lowercase b for bits.