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Convert between bytes, KB, MB, GB, TB and binary units
File size is the amount of digital storage space a file occupies, measured in bytes and its multiples. Decimal (SI) units use base 1000, while binary (IEC) units use base 1024.
Base 1000 - Used in storage marketing
1,000,000,0001,000,0001,000101.00e-6Base 1024 - Used in computing
1,000,000,000976,562.5953.670.939.09e-48.88e-7Decimal (SI) units use base 1000. Each step up multiplies by 1,000. This is how storage manufacturers advertise capacity.
Binary (IEC) units use base 1024. Each step up multiplies by 1,024. This is how computers actually calculate storage.
The ~2.4% difference per step compounds: a 1 TB drive shows as ~931 GiB in your OS.
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