A table showing an overview of prefixes, symbols, and multiplication factors used in science and math, such as yotta (Y), zetta (Z), exa (E), peta (P), tera (T), giga (G), mega (M), kilo (k), hecto (h), deca (da), deci (d), centi (c), milli (m), micro (µ), nano (n), pico (p), femto (f), atto (a), zepto (z) and yocto (y)
Prefixes
Symbol | Prefix | Multiply by | meaning | Decimal |
---|---|---|---|---|
Y | yotta- | 1024 | one septillion | 1,000,000,000,000,000,000,000,000 |
Z | zetta- | 1021 | one sexillion | 1,000,000,000,000,000,000,000 |
E | exa- | 1018 | one quintillion | 1,000,000,000,000,000,000 |
P | peta- | 1015 | one quadrillion | 1,000,000,000,000,000 |
T | tera- | 1012 | one trillion | 1,000,000,000,000 |
G | giga- | 109 | one billion | 1,000,000,000 |
M | mega- | 106 | one million | 1,000,000 |
k | kilo- | 103 | one thousand | 1,000 |
h | hecto- | 102 | one hundred | 100 |
da | deca- | 10 | ten | 10 |
d | deci- | 10-1 | one tenth | 1 |
c | centi- | 10-2 | one hundredth | 0.1 |
m | milli- | 10-3 | one thousandth | 0.001 |
µ | micro- | 10-6 | one millionth | 0.000,001 |
n | nano- | 10-9 | one billionth | 0.000,000,001 |
p | pico- | 10-12 | one trillionth | 0.000,000,000,001 |
f | femto- | 10-15 | one quadrillionth | 0.000,000,000,000,001 |
a | atto- | 10-18 | one quintillionth | 0.000,000,000,000,000,001 |
z | zepto- | 10-21 | one sextillionth | 0.000,000,000,000,000,000,001 |
y | yocto- | 10-24 | one septillionth | 0.000,000,000,000,000,000,000,001 |