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Volume conversions of English and American units to metric units
Conversion: milligrams to grams and gram to milligram
Conversion: milliliters to liters and liter to milliliter
Conversion: milliseconds to seconds and second to millisecond
SI-Prefixes
| Symbol | Y | Z | E | P | T | G | M | k | h | da | - | d | c | m | µ | n | p | f | a | z | y |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Factor | 1024 | 1021 | 1018 | 1015 | 1012 | 109 | 106 | 103 | 102 | 101 | 1 | 10-1 | 10-2 | 10-3 | 10-6 | 10-9 | 10-12 | 10-15 | 10-18 | 10-21 | 10-24 |
Prefixes for decimal multiples of units and parts of units
| Factor | in full | in words |
SI prefix |
SI symbol |
| 1.0E+24 1.0E+21 1.0E+18 1.0E+15 1.0E+12 1.0E+9 1.0E+6 1.0E+3 1.0E+2 1.0E+1 1.0E 0 1.0E-1 1.0E-2 1.0E-3 1.0E-6 1.0E-9 1.0E-12 1.0E-15 1.0E-18 1.0E-21 1.0E-24 |
large 1 000 000 000 000 000 000 000 000 1 000 000 000 000 000 000 000 1 000 000 000 000 000 000 1 000 000 000 000 000 1 000 000 000 000 1 000 000 000 1 000 000 1 000 100 10 ref. 1 0.1 0.01 0.001 0.000 001 0.000 000 001 0.000 000 000 001 0.000 000 000 000 001 0.000 000 000 000 000 001 0.000 000 000 000 000 000 001 small 0.000 000 000 000 000 000 000 001 |
septillion sextillion quintillion quadrillion trillion billion million thousand hundred ten initial value tenth hundredth thousandth millionth billionth trillionth quadrillionth quintillionth sextillionth septillionth |
yotta zetta exa peta tera giga mega kilo hecto deka one deci centi milli micro nano pico femto atto zepto yocto |
Y Z E P T G M k h da - d c m µ n p f a z y |
Exponent (basis 10) of decimals: E n = 10n
| Factor | European name | American name |
| 103 | thousand | thousand |
| 106 | million | million |
| 109 | milliard | billion • • |
| 1012 | billion • • | trillion • • • |
| 1015 | billiard | quadrillion • • • • |
| 1018 | trillion • • • | quintillion • • • • • |
| 1021 | trilliard | sextillion |
| 1024 | quadrillion • • • • | septillion |
| 1027 | quadrilliard | octillion |
| 1030 | quintillion • • • • • | nonillion |
| 1033 | - | decillion |
| 1036 | sextillion | undecillion |
| 1039 | - | duodecillion |
| 1042 | septillion | tredecillion |
| 1045 | - | quattuordecillion |
| 1048 | octillion | quindecillion |
| 1051 | - | sextdecillion |
| 1054 | nonillion | septendecillion |
| 1057 | - | octodecillion |
| 1060 | decillion | novemdecillion |
| 1063 | - | nonillionvigintillion |
| Number | Name |
| 10100 | googol |
| 10too many | googolplex |
Though generally speaking, a googol is just a term that means "A very big number"
and a googolplex is just a term that means "An unimaginably large number".
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