Measurement Unit Prefix Converter
Enter a value in the From field and use the the dropdown to select the appropriate prefixes from for both the From and To values.
Factor

Prefix

Symbol

10^{15}  peta  P 
10^{12}  tera  T 
10^{9}  giga  G 
10^{6}  mega  M 
10^{3}  kilo  k 
10^{2}  hecto  h 
10^{1}  deka  da 
10^{1}  deci  d 
10^{2}  centi  c 
10^{3}  milli  m 
10^{6}  micro  µ 
10^{9}  nano  n 
10^{12}  pico  p 
10^{15}  femto  f 
10^{18}  atto  a 
If it's been a while since you have used exponents or factors of the powers of ten, here's a quick refresher.
For numbers with a positive exponent:
For numbers with a positive exponent:
The result is 10 multiplied by itself the number of times of the exponent. For example, 10^{9} = 10 multiplied by itself nine times = 10x10x10x10x10x10x10x10x10 = 1,000,000,000 or one billion.
For numbers with a negative exponent:
The result is 1/10 multiplied by itself the number of times of the positive version of the exponent. For example, 10^{3} = 1/10 multiplied by itself three times = 1/10 x 1/10 x 1/10 = .001 or one onethousandth.