Quantity     Unit     is equal to     Conversion Factor     Reference Unit   1 bit = 1 bit 1 block = 4096 bit 1 byte = 8 bit 1 CD (74 minute) = 5448466432 bit 1 CD (80 minute) = 5890233976 bit 1 double-word = 32 bit 1 DVD (1 layer, 1 side) = 40372692582.4 bit 1 DVD (1 layer, 2 sides) = 80745385164.8 bit 1 DVD (2 layers, 1 side) = 73014444032 bit 1 DVD (2 layers, 2 sides) = 146028888064 bit 1 exabit = 1.15292150461E+18 bit 1 exabyte = 9.22337203685E+18 bit 1 exabyte (10^18 bytes) = 8E+18 bit 1 floppy disk (3.5", DD) = 5830656 bit 1 floppy disk (3.5", ED) = 23322624 bit 1 floppy disk (3.5", HD) = 11661312 bit 1 floppy disk (5.25", DD) = 2915328 bit 1 floppy disk (5.25", HD) = 9711616 bit 1 gigabit = 1073741824 bit 1 gigabyte = 8589934592 bit 1 gigabyte (10^9 bytes) = 8000000000 bit 1 Jaz 1GB = 8589934592 bit 1 Jaz 2GB = 17179869184 bit 1 kilobit = 1024 bit 1 kilobyte = 8192 bit 1 kilobyte (10^3 bytes) = 8000 bit 1 megabit = 1048576 bit 1 megabyte = 8388608 bit 1 megabyte (10^6 bytes) = 8000000 bit 1 nibble = 4 bit 1 petabit = 1.12589990684E+15 bit 1 petabyte = 9.00719925474E+15 bit 1 petabyte (10^15 bytes) = 8E+15 bit 1 quadruple-word = 64 bit 1 terabit = 1.09951162778E+12 bit 1 terabyte = 8.79609302221E+12 bit 1 terabyte (10^12 bytes) = 8E+12 bit 1 word = 16 bit 1 Zip 100 = 803454976 bit 1 Zip 250 = 2008637440 bit