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$FreeBSD$
.Dd August 6, 2011 .Dt ORDERS 7 .Os .Sh NAME .Nm orders .Nd orders of magnitude .Sh DESCRIPTION The following table lists common multiples of bytes. l -column -offset 2n \ "Kilobyte" "Prefix" "Power of 2" "Power of 10" t Sy Name Ta Sy Prefix Ta Sy Power of 2 Ta Sy Power of 10 t Kilobyte Ta kB Ta 2^10 Ta 10^3 t Megabyte Ta MB Ta 2^20 Ta 10^6 t Gigabyte Ta GB Ta 2^30 Ta 10^9 t Terabyte Ta TB Ta 2^40 Ta 10^12 t Petabyte Ta PB Ta 2^50 Ta 10^15 t Exabyte Ta EB Ta 2^60 Ta 10^18 t Zettabyte Ta ZB Ta 2^70 Ta 10^21 t Yottabyte Ta YB Ta 2^80 Ta 10^24 .El
p The following table lists common bit rates as a power of ten. l -column -offset 2n \ "Megabit per second" "Prefix" "Bit per second" "Byte per second" t Sy Name Ta Sy Prefix Ta Sy Bit per second Ta Sy Byte per second t Bit per second Ta bit/s Ta 1 Ta 0.125 t Byte per second Ta B/s Ta 8 Ta 1 t Kilobit per second Ta kbit/s Ta 10^3 Ta 125 t Kilobyte per second Ta kB/s Ta 8 * 10^3 Ta 1000 t Megabit per second Ta Mbit/s Ta 10^6 Ta 125000 t Megabyte per second Ta MB/s Ta 8 * 10^6 Ta 1000000 t Gigabit per second Ta Gbit/s Ta 10^9 Ta 125000000 t Gigabyte per second Ta GB/s Ta 8 * 10^9 Ta 1000000000 t Terabit per second Ta Tbit/s Ta 10^12 Ta 125000000000 t Terabyte per second Ta TB/s Ta 8 * 10^12 Ta 1000000000000 .El
p The following table lists common orders of magnitude as a power of ten. l -column -offset 2n \ "Septillionth" "Order" "Prefix" "Symbol" "Decimal" t Sy Name Ta Sy Order Ta Sy Prefix Ta Sy Symbol Ta Sy Decimal t Septillionth Ta 10^-24 Ta yocto Ta y Ta 0.000000000000000000000001 t Sextillionth Ta 10^-21 Ta zepto Ta z Ta 0.000000000000000000001 t Quintillionth Ta 10^-18 Ta atto Ta a Ta 0.000000000000000001 t Quadrillionth Ta 10^-15 Ta femto Ta f Ta 0.000000000000001 t Trillionth Ta 10^-12 Ta pico Ta p Ta 0.000000000001 t Billionth Ta 10^-9 Ta nano Ta n Ta 0.000000001 t Millionth Ta 10^-6 Ta micro Ta mu Ta 0.000001 t Thousandth Ta 10^-3 Ta milli Ta m Ta 0.001 t Hundredth Ta 10^-2 Ta centi Ta c Ta 0.01 t Tenth Ta 10^-1 Ta deci Ta d Ta 0.1 t One Ta 10^0 Ta - Ta - Ta 1 t Ten Ta 10^1 Ta deca Ta da Ta 10 t Hundred Ta 10^2 Ta hecto Ta h Ta 100 t Thousand Ta 10^3 Ta kilo Ta k Ta 1000 t Million Ta 10^6 Ta mega Ta M Ta 1000000 t Billion Ta 10^9 Ta giga Ta G Ta 1000000000 t Trillion Ta 10^12 Ta tera Ta T Ta 1000000000000 t Quadrillion Ta 10^15 Ta peta Ta P Ta 1000000000000000 t Quintillion Ta 10^18 Ta exa Ta E Ta 1000000000000000000 t Sextillion Ta 10^21 Ta zetta Ta Z Ta 1000000000000000000000 t Septillion Ta 10^24 Ta yotta Ta Y Ta 1000000000000000000000000 .El .Sh SEE ALSO .Xr units 1 , .Xr number 6 .Sh STANDARDS There have been various attempts to standardize the set of binary prefixes. Organizations such as International Electrotechnical Commission
q Tn IEC have proposed new prefixes such as .Dq kibi , .Dq mebi , .Dq gibi , and .Dq yobi , but the adoption has been slow at best. .Sh AUTHORS This manual page was written by .An Jukka Ruohonen Aq Mt jruoho@netbsd.org .