How data unit converter works
This converter handles digital storage units in two standards at once. The decimal (SI) standard uses powers of 1000: 1 KB = 1000 bytes, 1 MB = 1,000,000 bytes, 1 GB = 1,000,000,000 bytes, and so on through TB and PB. The binary (IEC) standard uses powers of 1024: 1 KiB = 1024 bytes, 1 MiB = 1,048,576 bytes, 1 GiB = 1,073,741,824 bytes, through TiB and PiB. The tool converts your input to bytes first, then divides into every other unit so you see both standards side by side.
The two standards exist because memory chips are addressed in binary (powers of two) while storage marketing uses round decimal numbers. Operating systems historically reported binary sizes with the KB/MB/GB labels (so '1 KB' meant 1024 bytes), which is why a '500 GB' hard drive shows as about 465 'GB' in Windows. The IEC standard (KiB, MiB, GiB) was created to remove that ambiguity: KiB always means 1024 bytes, KB always means 1000 bytes.
Enter any value and pick its unit; the converter returns the equivalent amount in all ten other units, rounded to six decimal places. Tiny fractions use scientific notation so they never round to zero. This lets you answer questions like 'how many MiB in 500 MB' (500,000,000 / 1,048,576 = about 476.84 MiB) and see the exact decimal-vs-binary gap for any size.