Data Size Unit Converter
Why does a 500 GB drive show less space on your computer? This converter shows the same size in the units storage makers and computers use.
- Free
- Works offline after your first visit
- Saves on this device
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- Updated
How it works
Storage makers count a gigabyte as one billion bytes. Computers often count in powers of 1024, so a gibibyte is 1,073,741,824 bytes.
That is why a drive labelled in gigabytes shows a smaller number on a computer. Nothing is missing; the unit is different.
Worked example
A drive sold as 500 GB shows about 465.66 GiB on many computers, because they count in powers of 1024.
Questions
Is part of my drive missing?
No. The bytes are all there. The difference is only in how the total is counted.
What is a terabyte here?
A terabyte is 1000 gigabytes in the storage makers' count, shown in the result as TB.
Why do some systems show GB and others GiB?
Different systems and labels use different counts. Check which one your screen uses before you compare two numbers.
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