Convert data sizes, MB, GB, MiB and more
KB, MB, GB, TB and their 1024-based cousins.
Files stay on your device. No accounts. Free.
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About this tool
Bits, bytes, and both families of bigger units: the decimal KB, MB, GB and TB that storage makers use (powers of 1000), and the binary KiB, MiB, GiB and TiB that operating systems often report (powers of 1024).
That split is why a 500 GB drive shows up as 465 gigabytes in Windows, and this converter makes the difference visible instead of mysterious. All conversions run locally.
How it works
- Type an amount and pick your currencies.
- The result updates live as you type.
- Swap the direction with one click.
Frequently asked questions
Why does my 1 TB drive show less than 1 TB in Windows?
The drive is sold in decimal terabytes (1 TB = 1,000,000,000,000 bytes) but Windows reports binary tebibytes while calling them TB. 1 TB is about 0.909 TiB, so a 1 TB drive shows roughly 931 GB. Nothing is missing.
How many MB are in a GB?
1000 MB in the decimal system used for storage and bandwidth. If a program is using binary units, 1 GiB is 1024 MiB. This tool has both families so you can convert either way.
What is the difference between a bit and a byte?
A byte is 8 bits. Internet speeds are quoted in bits per second (100 Mbps) while file sizes are in bytes, which is why a 100 Mbps connection downloads at about 12.5 MB per second.