Reference & Information

SI Prefixes Table




Multiple Number Prefix Symbol
1024 1000000000000000000000000 Yotta Y
1021 1000000000000000000000 Zetta Z
1018 1000000000000000000 Exa E
1015 1000000000000000 peta P
1012 1000000000000 tera T
109 1000000000 giga G
106 1000000 mega M
103 1000 kilo k
102 100 hecto h
101 10 deca da
10-1 0.1 deci d
10-2 0.01 centi c
10-3 0.001 milli m
10-6 0.000001 micro µ
10-9 0.000000001 nano n
10-12 0.000000000001 pico p
10-15 0.000000000000001 femto f
10-18 0.000000000000000001 atto a
10-21 0.000000000000000000001 zepto z
10-24 0.000000000000000000000001 yokto y

International System of Units [SI], prefixes

SI prefixes strictly represent powers of 10, they should not be used to represent powers of 2.
Thus, one kilobit, or 1 kbit, is 1000 bit and not 210 bit = 1024 bit.
Scientific notation only uses 103, 106, 109 and so on.


Engineering Symbols
alpha: a, use FONT FACE = "SYMBOL" a
beta: b, use FONT FACE = "SYMBOL" b
epsilon: e, use FONT FACE = "SYMBOL" e
phi: f, use FONT FACE = "SYMBOL" f
pi: p, use FONT FACE = "SYMBOL" p
Omega: W, use FONT FACE = "SYMBOL" W

Related page HTML escape codes

Note: The Font symbol used above may not work in all browsers
Engineering prefixes are in multiplies of three. 101, 103, 106 and so on [Engineering Notation].

I use the html sup command to make the exponent, encased in the less than and greater than signs.



PC motherboard
Home

Distributor rolodex Electronic Components Electronic Equipment EDA CDROM Software Engineering Standards, BOB card Cabled Computer Bus Electronic Engineering Design Table Conversion DB9-to-DB25.
DistributorsComponents Equipment Software Standards Buses Design Reference

Modified 1/8/12
© 1998 - 2016 All rights reserved Larry Davis