Multiples and Submultiple of the Electrical Units

Multiple Prefix Symbol Factor Decimal
exa E 1018 1 000 000 000 000 000 000
peta P 1015 1 000 000 000 000 000
tera T 1012 1 000 000 000 000
giga G 109 1 000 000 000
mega M 106 1 000 000
kilo k 103 1 000
hecto h 102 1 00
deca da 10 1 0
Submultiple Prefix Symbol Factor Decimal
deci d 10-1 0.1
centi c 10-2 0.01
mili m 10-3 0.001
micro micro 10-6 0.000 001
nano n 10-9 0.000 000 001
pico p 10-12 0.000 000 000 001
femto f 10-15 0.000 000 000 000 001
atto a 10-18 0.000 000 000 000 000 001

 Examples

100 mF = 100 x 10-3 = 100 x 0.001 = 0,1 farads

100 milifarads = 0,1 farads


2,5 kV = 2.5 x 103 = 2.5 x 1000 = 2.500 volts

2,5 kilovolts = 2.500 volts



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