| 1 |- | milli | m | style="text-align:left;" | 1000−1 | style="text-align:left;" | 10−3 | style="text-align:left;" | |- | micro | μ | style="text-align:left;" | 1000−2 | style="text-align:left;" | 10−6 | style="text-align:left;" | |- | nano | n | style="text-align:left;" | 1000−3 | style="text-align:left;" | 10−9 | style="text-align:left;" | |- | pico | p | style="text-align:left;" | 1000−4 | style="text-align:left;" | 10−12 | style="text-align:left;" | |- | femto | f | style="text-align:left;" | 1000−5 | style="text-align:left;" | 10−15 | style="text-align:left;" | |- | atto | a | style="text-align:left;" | 1000−6 | style="text-align:left;" | 10−18 | style="text-align:left;" | |- | zepto | z | style="text-align:left;" | 1000−7 | style="text-align:left;" | 10−21 | style="text-align:left;" | |- | yocto | y | style="text-align:left;" | 1000−8 | style="text-align:left;" | 10−24 | style="text-align:left;" | |- | ronto | r | style="text-align:left;" | 1000−9 | style="text-align:left;" | 10−27 | style="text-align:left;" | |- | quecto | q | style="text-align:left;" | 1000−10 | style="text-align:left;" | 10−30 | style="text-align:left;" | |} Binary engineering notation Just like decimal engineering notation can be viewed as a base-1000 scientific notation (103 = 1000), binary engineering notation relates to a base-1024 scientific notation (210 = 1024), where the exponent of two must be divisible by ten. This is closely related to the base-2 floating-point representation (B notation) commonly used in computer arithmetic, and the usage of IEC binary prefixes, e.g. 1B10 for 1 × 210, 1B20 for 1 × 220, 1B30 for 1 × 230, 1B40 for 1 × 240 etc. See also Significant figures Scientific notation Binary prefix International System of Units (SI) RKM code Notes References External links Engineering Prefix User Defined Function for Excel Perl CPAN module for converting number to engineering notation Java functions for converting between a string and a double type Notation, Engineering Numeral systems Notation