Metric prefixes

exa

E

$1000000000000000000$

$10^{18}$

peta

P

$1000000000000000$

$10^{15}$

tera

T

$1000000000000$

$10^{12}$

giga

G

$1000000000$

$10^9$

mega

M

$1000000$

$10^6$

kilo

k

$1000$

$10^3$

hecto

h

$100$

$10^2$

deca

da

$10$

$10^1$

deci

d

$0.1$

$10^{-1}$

centi

c

$0.01$

$10^{-2}$

mili

m

$0.001$

$10^{-3}$

micro

$\mu$

$0.000001$

$10^{-6}$

nano

n

$0.000000001$

$10^{-9}$

pico

p

$0.000000000001$

$10^{-12}$

femto

f

$0.000000000000001$

$10^{-15}$

atto

a

$0.000000000000000001$

$10^{-18}$