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IABSD.fr/src/usr.bin/units/units.lib
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/ $OpenBSD: units.lib,v 1.147 2023/04/12 15:26:26 jmc Exp $ / $NetBSD: units.lib,v 1.3 1996/04/06 06:01:04 thorpej Exp $ / primitive units m !a! kg !b! sec !c! coul !d! candela !e! dollar !f! bit !h! erlang !i! K !j! / International System of Units (SI) prefixes quetta- 1e30 ronna- 1e27 yotta- 1e24 zetta- 1e21 exa- 1e18 peta- 1e15 tera- 1e12 giga- 1e9 mega- 1e6 kilo- 1e3 hecto- 1e2 deca- 1e1 deka- deca deci- 1e-1 centi- 1e-2 milli- 1e-3 micro- 1e-6 nano- 1e-9 pico- 1e-12 femto- 1e-15 atto- 1e-18 zepto- 1e-21 yocto- 1e-24 ronto- 1e-27 quecto- 1e-30 / SI symbols Q- quetta R- ronna Y- yotta Z- zetta E- exa P- peta T- tera G- giga M- mega k- kilo h- hecto da- deca d- deci c- centi m- milli n- nano p- pico f- femto a- atto z- zepto y- yocto r- ronto q- quecto / ISO/IEC 80000 binary prefixes yobi- 1208925819614629174706176 zebi- 1180591620717411303424 exbi- 1152921504606846976 pebi- 1125899906842624 tebi- 1099511627776 gibi- 1073741824 mebi- 1048576 kibi- 1024 / ISO/IEC 80000 symbols Yi- yobi Zi- zebi Ei- exbi Pi- pebi Ti- tebi Gi- gibi Mi- mebi Ki- kibi / Other prefixes myria- 1e4 semi- .5 demi- .5 / constants fuzz 1 pi 3.14159265358979323846 c 2.99792458e+8 m/sec g 9.80665 m/sec2 bigG 6.67390e-11 m3/kg/s2 AU 1.495978707e+11 m au AU mole 6.0221367e+23 fuzz e 1.60217733e-19 coul fuzz / Next two to be multiplied by mass energy c2 force g mercury 1.3332239e+5 kg/m2-sec2 hg mercury mmHg 0.001 m hg mu 4.e-7 pi-N/A2 epsilon 1.0 /mu/c2 alpha 0.5 mu-c-e2/planck planck 6.6260755e-34 joule-sec hbar 0.5 planck/pi electronmass 9.1093897e-31 kg protonmass 1.6726231e-27 kg neutronmass 1.6749286e-27 kg / dimensionless radian .5 / pi degree 1|180 pi-radian circle 2 pi-radian turn 2 pi-radian revolution turn rev turn grade .9 degree arcdeg 1 degree arcmin 1|60 arcdeg ccs 1|36 erlang arcsec 1|60 arcmin steradian radian2 sphere 4 pi-steradian sr steradian / Time second sec s sec minute 60 sec min minute hour 60 min hr hour day 24 hr da day week 7 day year 3.15569259747e7 sec fuzz yr year month 1|12 year ms millisec us microsec / Mass gram millikg gm gram mg milligram metricton kilokg / Avoirdupois lb .45359237 kg pound lb lbf lb g ounce 1|16 lb oz ounce dram 1|16 oz dr dram grain 1|7000 lb gr grain shortton 2000 lb ton shortton longton 2240 lb / Apothecary scruple 20 grain apdram 60 grain apounce 480 grain appound 5760 grain troypound appound / Length meter m micron micrometer angstrom decinanometer ao 0.25 alpha/pi/rydbergconst inch 2.54 cm in inch foot 12 in feet foot ft foot yard 3 ft yd yard rod 5.5 yd rd rod mile 5280 ft mi mile british 1200|3937 m/ft / Assume we do not want the prefix n- with mile nmile 1852 m acre 4840 yd2 ox acre/day cc cm3 liter kilocc ml milliliter / US Liquid gallon 231 in3 imperial 1.20095 gal gallon quart 1|4 gal qt quart pint 1|2 qt pt pint floz 1|16 pt fldr 1|8 floz / US Dry dry 268.8025 in3/gallon fuzz peck 8 dry-quart pk peck bushel 4 peck bu bushel chaldron 36 bushel / British brgallon 277.420 in3 fuzz brquart 1|4 brgallon brpint 1|2 brquart brfloz 1|20 brpint brpeck 554.84 in3 fuzz brbushel 4 brpeck / Russian berkovets 10 pood pood 40 funt funt 0.40951 kg lot 1|32 funt zolotnik 1|3 lot dolya 1|96 zolotnik rumile 7 verst mezhevayaverst 2 verst verst 1066.8 m sazhen 1|500 verst kosayasazhen 1|430.2 verst arshin 1|1500 verst / is not exactly defined ruell 16.54 in liniya 1|10 in vershok 1.75 in pyad 7 in vedro 12.3 liter shtoff 1|10 vedro vinebottle 1|16 vedro vodkabottle 1|20 vedro charka 1|100 vedro shkalik 1|200 vedro desyatina_state 109.3 are desyatina_farmery 0.75 desyatina_state sqverst 104.2 desyatina_state sqarshin 1|21600 desyatina_state / Energy Work newton kg-m/sec2 nt newton N newton joule nt-m J joule cal 4.1868 joule / Electrical coulomb coul C coul ampere coul/sec amp ampere A amp watt joule/sec W watt volt watt/amp ohm volt/amp mho /ohm farad coul/volt F farad henry sec2/farad H henry weber volt-sec Wb weber / Light cd candela lumen cd sr lux cd sr/m2 / http://www.federalreserve.gov/releases/h10/current/ / as of April 23, 2021 $ dollar australiadollar .7739 $ brazilreal 1|5.5011 $ canadadollar 1|1.2495 $ chinayuan 1|6.4945 $ denmarkkrone 1|6.1609 $ euro 1.2069 $ hongkongdollar 1|7.7605 $ indiarupee 1|74.9700 $ japanyen 1|107.9400 $ malaysiaringgit 1|4.1079 $ mexicopeso 1|19.8520 $ newzealanddollar .7179 $ norwaykrone 1|8.3125 $ singaporedollar 1|1.3275 $ southafricarand 1|14.2750 $ southkoreawon 1|1115.1000 $ srilankarupee 1|193.0000 $ swedenkrona 1|8.4030 $ switzerlandfranc 1|0.9152 $ taiwandollar 1|28.0900 $ thailandbaht 1|31.4100 $ unitedkingdompound 1.3845 $ venezuelabolivar 1|2500064.0890 $ / The Economist, April 28, 2021 / Hungary, Iceland, Ukraine, Vietnam: no updates available since October 2018 argentinapeso 1|93.4 $ chilepeso 1|702 $ colombiapeso 1|3707 $ czechkoruna 1|21.4 $ egyptpound 1|15.7 $ hungaryforint 1|276 $ icelandkrona 1|110 $ indonesiarupiah 1|14500 $ israelshekel 1|3.25 $ pakistanrupee 1|154 $ perunuevosol 1|3.82 $ philippinespeso 1|48.5 $ polandzloty 1|3.79 $ russiarouble 1|74.8 $ saudiarabiariyal 1|3.75 $ turkeylira 1|8.23 $ ukrainehryvnia 1|28.1 $ vietnamdong 1|23349 $ / EMU currencies have constant exchange rate against Euro since 1.1.1999 austriaschilling 1|13.7603 euro belgiumfranc 1|40.3399 euro cypruspound 1|0.585274 euro finlandmarkka 1|5.94573 euro francefranc 1|6.55957 euro germanymark 1|1.95583 euro greecedrachma 1|340.750 euro irelandpunt 1|0.787564 euro italylira 1|1936.27 euro luxembourgfranc 1|40.3399 euro maltalira 1|0.429300 euro netherlandsguilder 1|2.20371 euro portugalescudo 1|200.482 euro spainpeseta 1|166.386 euro slovakiakoruna 1|30.1260 euro sloveniatolar 1|239.640 euro / currency aliases chinarenminbi chinayuan markka finlandmarkka franc francefranc mark germanymark drachma greecedrachma rupee indiarupee lira italylira yen japanyen peso mexicopeso guilder netherlandsguilder hollandguilder netherlandsguilder sol perunuevosol escudo portugalescudo rand southafricarand peseta spainpeseta britainpound unitedkingdompound greatbritainpound unitedkingdompound poundsterling unitedkingdompound bolivar venezuelabolivar / ISO 4217 ARS argentinapeso AUD australiadollar BRL brazilreal CAD canadadollar CHF switzerlandfranc CLP chilepeso CNY chinayuan COP colombiapeso CZK czechkoruna DKK denmarkkrone EGP egyptpound EUR euro GBP unitedkingdompound HKD hongkongdollar HUF hungaryforint IDR indonesiarupiah INR indiarupee ILS israelshekel ISK icelandkrona JPY japanyen KRW southkoreawon LKR srilankarupee MXN mexicopeso MYR malaysiaringgit NOK norwaykrone NZD newzealanddollar PEN perunuevosol PHP philippinespeso PKR pakistanrupee PLN polandzloty RUB russiarouble SAR saudiarabiariyal SEK swedenkrona SGD singaporedollar THB thailandbaht TRY turkeylira TWD taiwandollar UAH ukrainehryvnia USD dollar VEF venezuelabolivar VND vietnamdong ZAR southafricarand / computer baud bit/sec byte 8 bit / Not necessarily true on all systems! word 2 byte block 512 byte kbyte 1024 byte megabyte 1024 kbyte gigabyte 1024 megabyte meg megabyte / Trivia % 1|100 abampere 10 ampere admiraltyknot 6080 ft/hr apostilb cd/pi-m2 asb apostilb are 1e+2 m2 arpentcan 27.52 mi arpentlin 191.835 ft astronomicalunit AU atmosphere 1.01325e+5 nt/m2 atm atmosphere atomicmassunit 1.6605402e-27 kg fuzz amu atomicmassunit bag 94 lb bakersdozen 13 bar 1e+5 nt/m2 barie 1e-1 nt/m2 barleycorn 1|3 in barn 1e-28 m2 / oil barrel, nothing else barrel 42 gal barye 1e-1 nt/m2 baryl microbar becquerel /s bev 1e+9 e-volt biot 10 amp blondel cd/pi-m2 boardfoot 144 in3 / Defn of bolt is also an area, but depends on type of cloth bolt 40 yd bottommeasure 1|40 in Bq becquerel britishthermalunit 1.05506e+3 joule fuzz btu britishthermalunit refrigeration 12000 btu/ton-hour buck dollar cable 720 ft caliber 1e-2 in calorie cal carat 205 mg caratgold 1|24 cent centidollar cental 100 lb centesimalminute 1e-2 grade centesimalsecond 1e-4 grade century 100 year cfs ft3/sec chain 66 ft Ci curie circularinch 1|4 pi-in2 circularmil 1e-6|4 pi-in2 clusec 1e-8 mm-hg m3/s coomb 4 bu cord 128 ft3 cordfoot cord crith 9.06e-2 gm cubit 18 in cup 1|2 pt curie 3.7e+10 /sec dalton amu decade 10 yr diopter dioptre dioptre /m displacementton 35 ft3 doppelzentner 100 kg dozen 12 drop .03 cm3 dyne cm-gm/sec2 electronvolt e-volt ell 45 in engineerschain 100 ft engineerslink 100|100 ft equivalentfootcandle lumen/pi-ft2 equivalentlux lumen/pi-m2 equivalentphot cd/pi-cm2 erg cm2-gm/sec2 ev e-volt faraday 9.6485309e+4 coul fathom 6 ft fermi 1e-15 m fifth 4|5 qt fin 5 dollar finger 7|8 in firkin 9 gal footcandle lumen/ft2 footlambert cd/pi-ft2 fortnight 14 da franklin 3.33564e-10 coul frigorie kilocal furlong 220 yd galileo 1e-2 m/sec2 gamma 1e-9 weber/m2 gauss 1e-4 weber/m2 G gauss geodeticfoot british-ft geographicalmile 1852 m gilbert 2.5 amp/pi gill 1|4 pt gray J/kg gross 144 gunterschain 22 yd Gy gray hand 4 in hartree 2 rydberg hectare 1e+4 m2 hefnercandle .92 cd hertz /sec Hz hertz hogshead 2 barrel hd hogshead homestead 1|4 mi2 / horsepower is not uniquely defined horsepower 735.50 watt hp horsepower hubble 1e9 ly hyl gm force sec2/m hz /sec imaginarycubicfoot 1.4 ft3 jansky 1e-26 W/m2-Hz jeroboam 4|5 gal Jy jansky karat 1|24 kayser /cm kcal kilocal kcalorie kilocal key kg kilderkin 18 gal knot nmile/hr kn knot lambert cd/pi-cm2 Lb lambert langley cal/cm2 last 80 bu league 3 mi lightyear c-yr ly lightyear line 1|12 in link 66|100 ft longhundredweight 112 lb longquarter 28 lb lusec 1e-6 mm-hg m3/s m_earth 5.97223e24 kg m_moon 7.34e22 kg m_sun 1.98843e30 kg mach 331.46 m/sec magnum 2 qt marineleague 3 nmile maxwell 1e-8 weber Mx maxwell metriccarat 200 mg mgd megagal/day mh millihenry mil 1e-3 in millennium 1000 year minersinch 1.5 ft3/min minim 1|60 fldr mo month mpg mile/gal mph mile/hr nail 1|16 yd nauticalmile nmile nit cd/m2 noggin 1|8 qt nox 1e-3 lux ns nanosec oersted 2.5e+2 amp/m/pi Oe oersted pace 36 in palm 3 in pair 2 parasang 3.5 mi parsec AU-radian/arcsec pascal nt/m2 Pa pascal pc parsec pennyweight 1|20 oz pwt pennyweight percent % perch rd phot lumen/cm2 pica 1|6 in pieze 1e+3 nt/m2 pipe 4 barrel point 1|72 in poise gm/cm-sec P poise pole rd pond 9.80665e-3 nt poundal ft-lb/sec2 pdl poundal proof 1|200 psi lb-g/in2 quarter 9 in quartersection 1|4 mi2 quintal 100 kg quire 25 r_earth 6378.1370 km r_moon 0.2725076 r_earth rackunit 1.75 in rad 100 erg/gm ream 500 registerton 100 ft3 rehoboam 156 floz rhe 10 m2/nt-sec rem 0.01 J/kg rontgen 2.58e-4 curie/kg roentgen rontgen R roentgen rood 1.21e+3 yd rope 20 ft RU rackunit rutherford 1e+6 /sec rydbergconst 0.5 electronmass-c-alpha2/planck rydberg rydbergconst-planck-c sabin 1 ft2 sack 3 bu score 20 seam 8 bu section mi2 shippington 40 ft3 shorthundredweight 100 lb shortquarter 25 lb siemens /ohm sievert J/kg sigma microsec skein 120 yd skot 1e-3 apostilb slug lb-g-sec2/ft smoot 67 in span 9 in spat 4 pi sr spindle 14400 yd square 100 ft2 stere m3 sthene 1e+3 nt stilb cd/cm2 sb stilb stoke 1e-4 m2/sec stone 14 lb strike 2 bu surveyfoot british-ft surveyyard 3 surveyfoot surveyorschain 66 ft surveyorslink 66|100 ft Sv sievert tablespoon 4 fldr teaspoon 4|3 fldr tesla weber/m2 T tesla therm 1e+5 btu thermie 1e+6 cal timberfoot ft3 tnt 4.6e+6 m2/sec2 tonne 1e+6 gm torr mm hg township 36 mi2 tun 8 barrel water gram g / cc / pumps are often in "feet head", assuming feet of water head water wey 40 bu weymass 252 lb Xunit 1.00206e-13 m k 1.38047e-16 erg/degC degC K kelvin K brewster 1e-12 m2/newton degF 5|9 degC degreesrankine degF degrankine degreesrankine degreerankine degF degreaumur 10|8 degC drachm 60 grain poncelet 100 kg m g / sec denier .05|450 gram / m tex .001 gram / m englishell 45 inch scottishell 37.2 inch flemishell 27 inch V volt eV ev bohrradius ao fresnel 1e12 hertz statcoul 1|2.99792458e9 coul statamp 1|2.99792458e9 amp statvolt 2.99792458e2 volt statcoulomb statcoul statampere statamp debye 3.33564e-30 coul-m pulsatance 2 pi/sec rpm rev/minute rps rev/sec kilohm kiloohm megohm megaohm siderealyear 365.256360417 day siderealday 23.934469444 hour siderealhour 1|24 siderealday lunarmonth 29.5305555 day synodicmonth lunarmonth siderealmonth 27.32152777 day tropicalyear year solaryear year lunaryear 12 lunarmonth cran 37.5 brgallon kip 1000 lbf frenchfoot 16|15 ft frenchfeet frenchfoot toise 6 frenchfeet candle 1.02 candela militarypace 2.5 feet metre meter litre liter gramme gram iudiptheria 62.8 microgram iupenicillin .6 microgram iuinsulin 41.67 microgram cottonyarncount 2520 ft/pound linenyarncount 900 ft/pound worstedyarncount 1680 ft/pound metricyarncount meter/gram jewlerspoint 2 milligram