Symbol Prefix SI Meaning Binary meaning Size difference
KB= kilobytes 103 = 10001 210 = 10241 2.40%
MB= megabytes 106 = 10002 220 = 10242 4.86%
GB= gigabytes 109 = 10003 230 = 10243 7.37%
TB= terabytes 1012 = 10004 240 = 10244 9.95%
PB= petabytes 1015 = 10005 250 = 10245 12.59%
EB= exabytes 1018 = 10006 260 = 10246 15.29%
ZB= zettabytes 1021 = 10007 270 = 10247 18.67%
YB= yottabytes 1024 = 10008 280 = 10248 21.95%