Sistema di misura delle capacità di memoria

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b bit B Byte (pari a 8 bit)

kB Kilobyte (2¹⁰B – pari a 1.024 B )

MB Megabyte (2²⁰B – pari a 1.024 kb)

GB Gigabyte (2³⁰B – pari a 1.024 MB)

TB Terabyte (2⁴⁰B – pari a 1.204 GB)

PB Petabyte (2⁵⁰B – pari a 1.024 TB)

Riferimento	b	B	kB	MB	GB	TB	PB
1 b	1
1 B	8	1
1 kB		1.024	1
1 MB		1.048.576	1.024	1
1 GB		1.073.741.824	1.048.576	1.024	1
1 TB		1.099.511.627.776	1.073.741.824	1.048.576	1.024	1
1 PB		1.125.899.906.842.624	1.099.511.627.776	1.073.741.824	1.048.576	1.024	1