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,------------------------------------------------------------------------. | SI base units: | +------------------------------------------------------------------------+ | length meter m | | mass kilogram kg | | time second s | | electric current ampere A | | temperature kelvin K | | amount of substance mole mol | | luminous intensity candela cd | +------------------------------------------------------------------------+ | (converting) Time: | +------------------------------------------------------------------------+ | minute min 1 min = 60 s | | hour h 1 h = 60 min = 3600 s | | day d 1 d = 24 h = 1440 min = 86 400 s | +------------------------------------------------------------------------+ | SI prefixes: | +------------------------------------------------------------------------+ | atto a 10^-18 | | femto f 10^-15 | | pico p 10^-12 | | nano n 10^-9 | | micro 10^-6 | | mili m 10^-3 | | centi c 10^-2 | | deci d 10^-1 | | deca da 10^1 | | hecto h 10^2 | | kilo k 10^3 | | mega M 10^6 | | giga G 10^9 | | tera T 10^12 | | peta P 10^15 | | exa E 10^18 | +------------------------------------------------------------------------+ | Extra: | +------------------------------------------------------------------------+ | meter inch foot yard | | 1 = 39.3701 = 3.28084 = 1.09362 | | | | kilogram pound ounce troy ounce | | 1 = 2.20462 = 35.2740 = 32.1507 | | | | celsius kelvin fahrenheit | | 1 = 274.15 = 33.8 { celsius=(fahrenheit-32)/1.8 } | | | | To convert from to multiply by | | mile (US Statute) kilometer (km) 1.609347 | | inch (in) millimeter (mm) 25.4 * | | | `------------------------------------------------------------------------'