1*737bafd6Sjakllsch.\" $NetBSD: orders.7,v 1.7 2022/11/19 22:09:21 jakllsch Exp $ 21b259f8eSjruoho.\" 31b259f8eSjruoho.\" Copyright (c) 2010 The NetBSD Foundation, Inc. 41b259f8eSjruoho.\" All rights reserved. 51b259f8eSjruoho.\" 61b259f8eSjruoho.\" This code is derived from software contributed to The NetBSD Foundation 71b259f8eSjruoho.\" by Jukka Ruohonen. 81b259f8eSjruoho.\" 91b259f8eSjruoho.\" Redistribution and use in source and binary forms, with or without 101b259f8eSjruoho.\" modification, are permitted provided that the following conditions 111b259f8eSjruoho.\" are met: 121b259f8eSjruoho.\" 1. Redistributions of source code must retain the above copyright 131b259f8eSjruoho.\" notice, this list of conditions and the following disclaimer. 141b259f8eSjruoho.\" 2. Redistributions in binary form must reproduce the above copyright 151b259f8eSjruoho.\" notice, this list of conditions and the following disclaimer in the 161b259f8eSjruoho.\" documentation and/or other materials provided with the distribution. 171b259f8eSjruoho.\" 181b259f8eSjruoho.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 191b259f8eSjruoho.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 201b259f8eSjruoho.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 211b259f8eSjruoho.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 221b259f8eSjruoho.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 231b259f8eSjruoho.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 241b259f8eSjruoho.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 251b259f8eSjruoho.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 261b259f8eSjruoho.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 271b259f8eSjruoho.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 281b259f8eSjruoho.\" POSSIBILITY OF SUCH DAMAGE. 291b259f8eSjruoho.\" 30*737bafd6Sjakllsch.Dd November 19, 2022 311b259f8eSjruoho.Dt ORDERS 7 321b259f8eSjruoho.Os 331b259f8eSjruoho.Sh NAME 341b259f8eSjruoho.Nm orders 351b259f8eSjruoho.Nd orders of magnitude 361b259f8eSjruoho.Sh DESCRIPTION 37d2fb482dSjruohoThe following table lists common multiples of bytes. 381b259f8eSjruoho.Bl -column -offset 2n \ 391b259f8eSjruoho"Kilobyte" "Prefix" "Power of 2" "Power of 10" 401b259f8eSjruoho.It Sy Name Ta Sy Prefix Ta Sy Power of 2 Ta Sy Power of 10 411b259f8eSjruoho.It Kilobyte Ta kB Ta 2^10 Ta 10^3 421b259f8eSjruoho.It Megabyte Ta MB Ta 2^20 Ta 10^6 431b259f8eSjruoho.It Gigabyte Ta GB Ta 2^30 Ta 10^9 441b259f8eSjruoho.It Terabyte Ta TB Ta 2^40 Ta 10^12 451b259f8eSjruoho.It Petabyte Ta PB Ta 2^50 Ta 10^15 461b259f8eSjruoho.It Exabyte Ta EB Ta 2^60 Ta 10^18 471b259f8eSjruoho.It Zettabyte Ta ZB Ta 2^70 Ta 10^21 481b259f8eSjruoho.It Yottabyte Ta YB Ta 2^80 Ta 10^24 49*737bafd6Sjakllsch.It Ronnabyte Ta RB Ta 2^90 Ta 10^27 50*737bafd6Sjakllsch.It Quettabyte Ta QB Ta 2^100 Ta 10^30 511b259f8eSjruoho.El 521b259f8eSjruoho.Pp 534bd85b43SjruohoThe following table lists common bit rates as a power of ten. 544bd85b43Sjruoho.Bl -column -offset 2n \ 554bd85b43Sjruoho"Megabit per second" "Prefix" "Bit per second" "Byte per second" 564bd85b43Sjruoho.It Sy Name Ta Sy Prefix Ta Sy Bit per second Ta Sy Byte per second 574bd85b43Sjruoho.It Bit per second Ta bit/s Ta 1 Ta 0.125 584bd85b43Sjruoho.It Byte per second Ta B/s Ta 8 Ta 1 594bd85b43Sjruoho.It Kilobit per second Ta kbit/s Ta 10^3 Ta 125 604bd85b43Sjruoho.It Kilobyte per second Ta kB/s Ta 8 * 10^3 Ta 1000 614bd85b43Sjruoho.It Megabit per second Ta Mbit/s Ta 10^6 Ta 125000 624bd85b43Sjruoho.It Megabyte per second Ta MB/s Ta 8 * 10^6 Ta 1000000 634bd85b43Sjruoho.It Gigabit per second Ta Gbit/s Ta 10^9 Ta 125000000 644bd85b43Sjruoho.It Gigabyte per second Ta GB/s Ta 8 * 10^9 Ta 1000000000 654bd85b43Sjruoho.It Terabit per second Ta Tbit/s Ta 10^12 Ta 125000000000 664bd85b43Sjruoho.It Terabyte per second Ta TB/s Ta 8 * 10^12 Ta 1000000000000 674bd85b43Sjruoho.El 684bd85b43Sjruoho.Pp 691b259f8eSjruohoThe following table lists common orders of magnitude as a power of ten. 701b259f8eSjruoho.Bl -column -offset 2n \ 711b259f8eSjruoho"Septillionth" "Order" "Prefix" "Symbol" "Decimal" 721b259f8eSjruoho.It Sy Name Ta Sy Order Ta Sy Prefix Ta Sy Symbol Ta Sy Decimal 73*737bafd6Sjakllsch.It Nonillionth Ta 10^-30 Ta quecto Ta q Ta 0.000000000000000000000000000001 74*737bafd6Sjakllsch.It Octillionth Ta 10^-27 Ta ronto Ta r Ta 0.000000000000000000000000001 75d2fb482dSjruoho.It Septillionth Ta 10^-24 Ta yocto Ta y Ta 0.000000000000000000000001 76d2fb482dSjruoho.It Sextillionth Ta 10^-21 Ta zepto Ta z Ta 0.000000000000000000001 77d2fb482dSjruoho.It Quintillionth Ta 10^-18 Ta atto Ta a Ta 0.000000000000000001 78d2fb482dSjruoho.It Quadrillionth Ta 10^-15 Ta femto Ta f Ta 0.000000000000001 79d2fb482dSjruoho.It Trillionth Ta 10^-12 Ta pico Ta p Ta 0.000000000001 80d2fb482dSjruoho.It Billionth Ta 10^-9 Ta nano Ta n Ta 0.000000001 81d2fb482dSjruoho.It Millionth Ta 10^-6 Ta micro Ta mu Ta 0.000001 82d2fb482dSjruoho.It Thousandth Ta 10^-3 Ta milli Ta m Ta 0.001 83d2fb482dSjruoho.It Hundredth Ta 10^-2 Ta centi Ta c Ta 0.01 84d2fb482dSjruoho.It Tenth Ta 10^-1 Ta deci Ta d Ta 0.1 85d2fb482dSjruoho.It One Ta 10^0 Ta - Ta - Ta 1 86d2fb482dSjruoho.It Ten Ta 10^1 Ta deca Ta da Ta 10 87d2fb482dSjruoho.It Hundred Ta 10^2 Ta hecto Ta h Ta 100 88d2fb482dSjruoho.It Thousand Ta 10^3 Ta kilo Ta k Ta 1000 89d2fb482dSjruoho.It Million Ta 10^6 Ta mega Ta M Ta 1000000 90d2fb482dSjruoho.It Billion Ta 10^9 Ta giga Ta G Ta 1000000000 91d2fb482dSjruoho.It Trillion Ta 10^12 Ta tera Ta T Ta 1000000000000 92d2fb482dSjruoho.It Quadrillion Ta 10^15 Ta peta Ta P Ta 1000000000000000 93d2fb482dSjruoho.It Quintillion Ta 10^18 Ta exa Ta E Ta 1000000000000000000 94d2fb482dSjruoho.It Sextillion Ta 10^21 Ta zetta Ta Z Ta 1000000000000000000000 95d2fb482dSjruoho.It Septillion Ta 10^24 Ta yotta Ta Y Ta 1000000000000000000000000 96*737bafd6Sjakllsch.It Octillion Ta 10^27 Ta ronna Ta R Ta 1000000000000000000000000000 97*737bafd6Sjakllsch.It Nonillion Ta 10^30 Ta quetta Ta Q Ta 1000000000000000000000000000000 981b259f8eSjruoho.El 99cb2cb67eSwiz.Sh SEE ALSO 100cb2cb67eSwiz.Xr units 1 , 1015c1bce6bSjruoho.Xr strsuftoll 3 , 102cb2cb67eSwiz.Xr number 6 1031b259f8eSjruoho.Sh STANDARDS 1041b259f8eSjruohoThere have been various attempts to standardize the set of binary prefixes. 1051b259f8eSjruohoOrganizations such as International Electrotechnical Commission 1061b259f8eSjruoho.Pq Tn IEC 1071b259f8eSjruohohave proposed new prefixes such as 1081b259f8eSjruoho.Dq kibi , 1091b259f8eSjruoho.Dq mebi , 1101b259f8eSjruoho.Dq gibi , 1111b259f8eSjruohoand 1121b259f8eSjruoho.Dq yobi , 1131b259f8eSjruohobut the adoption has been slow at best. 114