Metric Prefix Table

Prefix Symbol Multiplier Exponent
yotta Y 1,000,000,000,000,000,000,000,000 1024
zetta Z 1,000,000,000,000,000,000,000 1021
exa E 1,000,000,000,000,000,000 1018
peta P 1,000,000,000,000,000 1015
tera T 1,000,000,000,000 1012
giga G 1,000,000,000 109
mega M 1,000,000 106
kilo k 1,000 103
hecto h 100 102
deca da 10 101
deci d 0.1 10-1
centi c 0.01 10-2
milli m 0.001 10-3
micro ยต 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
zepto z 0.000000000000000000001 10-21
yocto y 0.000000000000000000000001 10-24