Go to Home Page  Wednesday 13 December 2017nullnullnullnullnullnullnullnullnullnullnullnullnullEdit these tabs 
  Quick Reference with a UK focus
 UK Weather Summary: Windy with heavy, blustery showers.more
null
Google
Web hello.co.uk

Table of SI unit prefixes

These are the prefixes used in the international SI system of measurement. Notice that the greyed area includes four non preferred units. Of these the 'centi' prefix (commonly used for the centimetre) although widely used is in fact a non preferred unit. The 'deka' prefix is sometimes seen. This is incorrect- it should be 'deca'.

 

Prefix Symbol Multiplier Notes
yotta Y 1 000 000 000 000 000 000 000 000 = 10^24  
zetta Z 1 000 000 000 000 000 000 000 = 10^21  
exa E 1 000 000 000 000 000 000 = 10^18  
peta P 1 000 000 000 000 000 = 10^15  
tera T 1 000 000 000 000 = 10^12  
giga G 1 000 000 000 = 10^9 thousand-million (billion)
mega M 1 000 000 = 10^6 million
kilo k 1 000 = 10^3 thousand
hecto h 100 = 100 hundred
deca da 10 = 10 ten
The greyed area are non preferred prefixes
deci d 0.1 = 0.1 tenth
centi c 0.01 = 0.01 hundredth
milli m 0.001 = 10^-3 thousandth
micro µ 0.000 001 = 10^-6 millionth
nano n 0.000 000 001 = 10^-9 thousand-millionth
pico p 0.000 000 000 001 = 10^-12  
femto f 0.000 000 000 000 001 = 10^-15  
atto a 0.000 000 000 000 000 001 = 10^-18  
zepto z 0.000 000 000 000 000 000 001 = 10^-21  
yocto y 0.000 000 000 000 000 000 000 001 = 10^-24  
null
null
Top Home            © Lee Allen, 2017

IP:146.185.155.185