Timing Rates & Storage Space Terms

Storage Space

KiloByte (K) = Thousand = 10^3 = 1,000

MegaByte (M) = Million = 10^6

GigaByte (G) = Billion = 10^9

TeraByte (T) = Trillion = 10^12

PetaByte (P) = Quadrillion = 10^15

ExaByte (E) = Quintillion = 10^18

ZettaByte (Z) = Sextilllion = 10^21

YottaByte (Y) = Septillion = 10^24

Timing Rates (Parts of a Second)

Millisecond = thousandth = .001 = 10^-3

Microsecond = millionth = .000001 = 10^-6

Nanosecond = billionth = 10^-9

Picosecond = trillionth = 10^-12

Femtosecond = quadrillionth = 10^-15

Attosecond = quintillionth = 10^-18

Zeposecond = sextillionth = 10^-21

Yoctosecond = septillionth = 10^-21

NOTE: "^" = exponent or "to the power of"

Page Last Updated: Tuesday, August 22, 2000