File Storage Capacity Conversion Tables

Computer data and file size is normally measured in binary code using the binary number system (counted by factors of two 1, 2, 4, 8, 16, 32, 64, etc), the prefixes for the multiples are based on the metric system! The nearest binary number to 1,000 is 2^10 or 1,024; thus 1,024 bytes was named a Kilobyte. So, although a metric “kilo” equals 1,000 (e.g. one kilogram = 1,000 grams), a binary “Kilo” equals 1,024 (e.g. one Kilobyte = 1,024 bytes).

bit byte Kilobyte Megabyte Gigabyte
bit 1 8 8,192 8,388,608 8,589,934,592
byte 8 1 1,024 1,048,576 1,073,741,824
Kilobyte 8,192 1,024 1 1,024 1,048,576
Megabyt 8,388,608 1,048,576 1,024 1 1,024
Gigabyte 8,589,934,592 1,073,741,824 1,048,576 1,024 1
Terabyte 8,796,093,022,208 1,099,511,627,776 1,073,741,824 1,048,576 1,024
Petabyte 9,007,199,254,740,990 1,125,899,906,842,620 1,099,511,627,776 1,073,741,824 1,048,576
Exabyte 9,223,372,036,854,770,000 1,152,921,504,606,840,000 1,125,899,906,842,620 1,099,511,627,776 1,073,741,824
Zettabyt 9,444,732,965,739,290,000,000 1,180,591,620,717,410,000,000 1,152,921,504,606,840,000 1,125,899,906,842,620 1,099,511,627,776

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