Common SI Prefixes
Text 
Symbol 
Factor 
tera 
T 
1,000,000,000,000 
giga 
G 
1,000,000,000 
mega 
M 
1,000,000 
kilo 
k 
1,000 
hecto 
h 
100 
(none) 
(none) 
1 
centi 
c 
0.01 
milli 
m 
0.001 
micro 
µ 
0.000001 
nano 
n 
0.000000001 


Example Calculations
To convert centimeters to meters,
multiply by 0.01 (or divide by 100)
cm x 0.01 = m
OR, cm ÷ 100 = m
To convert meters to centimeters,
multiply by 100
m x 100 = cm
To convert meters to kilometers,
multiply by 0.001 (or divide by 1000)
m x 0.001 = km
OR, m ÷ 1000 = km
To convert kilometers to meters,
multiply by 1000
km x 1000 = m

