9.1.4.2: Prefixes for Powers of 10 Last updated Mar 8, 2021 Save as PDF 9.1.4.1: Physical Constants 9.1.4.3: SI Units Page ID34049 Johan Wevers ( \newcommand{\kernel}{\mathrm{null}\,}\) yotta Y 1024 giga G 109 deci d 10−1 pico p 10−12 zetta Z 1021 mega M 106 centi c 10−2 femto f 10−15 exa E 1018 kilo k 103 milli m 10−3 atto a 10−18 peta P 1015 hecto h 102 micro μ 10−6 zepto z 10−21 tera T 1012 deca da 10 nano n 10−9 yocto y 10−24