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Data Storage Converter

Convert between bits, bytes, kilobytes, megabytes, gigabytes, and binary units like KiB, MiB, and GiB.

Equivalents

Decimal units step by 1000 (KB, MB, GB); binary units step by 1024 (KiB, MiB, GiB). Everything runs in your browser.

How to convert data storage units

  1. Enter a size

    Type a number and pick the unit you are starting from, such as MB or GiB.

  2. Read every unit

    The full list of equivalents across bits, bytes, decimal, and binary units updates instantly.

  3. Copy a result

    Copy any single value or the whole table to paste wherever you need it.

Why use this tool

Decimal and binary units

Decimal KB, MB, GB, TB, and PB (steps of 1000) sit alongside binary KiB, MiB, GiB, and TiB (steps of 1024) so you can compare the two systems directly.

Bits and bytes

The 8 to 1 bit to byte relationship is built in, so network speeds in bits and file sizes in bytes line up in the same list.

Live results

Every equivalent recalculates as you type. There is no convert button and no page reload.

Big numbers stay readable

Very large or very small results switch to compact notation so a petabyte in bits still fits on screen.

Private by design

All conversion runs on your device. Your numbers never leave the page. No upload, no signup.

About this tool

Data sizes are quietly confusing because two counting systems share similar names. Decimal units like kilobyte, megabyte, and gigabyte step by 1000, which is how drive makers and networks usually label capacity. Binary units like kibibyte, mebibyte, and gibibyte step by 1024, which is how operating systems often report the same files. That gap is why a 1 TB drive shows up as roughly 931 GiB.

This converter lists both systems together so you can see the difference at a glance. Enter a size in any unit and read it across bits, bytes, and every decimal and binary multiple at once. The 8 to 1 factor between bits and bytes is handled automatically, which is handy when a connection is quoted in megabits but a download is measured in megabytes.

Everything is calculated through a shared bit base, so nothing drifts as you move up and down the scale. Zero and empty inputs clear the results rather than showing errors. For other technical conversions try the number base converter, and for everyday measures see the general unit converter.

Frequently asked questions

What is the difference between KB and KiB?
A kilobyte (KB) is 1000 bytes and a kibibyte (KiB) is 1024 bytes. The same 1000 versus 1024 gap applies to MB versus MiB and GB versus GiB, which is why reported sizes sometimes disagree.
Why does my 1 TB drive show as about 931 GB?
Drive makers label capacity in decimal terabytes (1000 based) while many operating systems display it in binary gibibytes (1024 based). One decimal terabyte is about 931 binary gibibytes, so no space is missing.
How many bits are in a byte?
A byte is 8 bits. The converter handles this automatically, so a size entered in megabytes shows correctly in megabits and vice versa.
How large a value can I convert?
You can go up to petabytes and down to single bits. Extremely large or small results switch to compact scientific notation so they stay readable.
Is my data sent anywhere?
No. Every calculation happens on your device as you type. Nothing is uploaded and no account is needed.

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