1 2# primitive units 3 4m !a! 5kg !b! 6sec !c! 7coul !d! 8candela !e! 9usdollar !f! 10euro !g! 11bit !h! 12erlang !i! 13K !j! 14 15# prefixes 16 17yotta- 1e24 18zetta- 1e21 19exa- 1e18 20peta- 1e15 21tera- 1e12 22giga- 1e9 23mega- 1e6 24myria- 1e4 25kilo- 1e3 26hecto- 1e2 27deka- 1e1 28deca- deka 29deci- 1e-1 30centi- 1e-2 31milli- 1e-3 32micro- 1e-6 33nano- 1e-9 34pico- 1e-12 35femto- 1e-15 36atto- 1e-18 37zopto- 1e-21 38zepto- zopto 39yocto- 1e-24 40 41quarter- 1|4 42semi- .5 43demi- .5 44hemi- .5 45half- .5 46double- 2 47triple- 3 48 49Y- yotta 50Z- zetta 51E- exa 52P- peta 53T- tera 54G- giga 55M- mega 56k- kilo 57h- hecto 58da- deka 59d- deci 60c- centi 61m- milli 62u- micro 63n- nano 64p- pico 65f- femto 66a- atto 67z- zopto 68y- yocto 69 70# binary prefixes introduced in 1999 71exbi- 1152921504606846976 72pebi- 1125899906842624 73tebi- 1099511627776 74gibi- 1073741824 75mebi- 1048576 76kibi- 1024 77 78Ei- exbi 79Pi- pebi 80Ti- tebi 81Gi- gibi 82Mi- mebi 83Ki- kibi 84 85# constants 86 87fuzz 1 88pi 3.14159265358979323846 89c 2.99792458e+8 m/sec 90g0 9.80665 m/sec2 91g g0 92bigG 6.67428e-11 m3/kg/s2 93AU 1.49597870691e+11 m fuzz 94au AU 95mole 6.0221417930e+23 fuzz 96e 1.6021917e-19 coul fuzz 97energy c2 98force g 99mercury 1.3332239e+5 kg/m2-sec2 100hg mercury 101mmHg 0.001 m hg 102#mu 4.e-7 pi-N/A2 103epsilon 1.0 /mu/c2 104alpha 0.5 mu-c-e2/planck 105planck 6.6260755e-34 joule-sec 106hbar 0.5 planck/pi 107electronmass 9.1093821545-31 kg 108protonmass 1.6726217129-27 kg 109neutronmass 1.6749272928-27 kg 110 111# dimensionless 112 113radian .5 / pi 114degree 1|180 pi-radian 115circle 2 pi-radian 116turn 2 pi-radian 117revolution turn 118rev turn 119grade .9 degree 120arcdeg 1 degree 121arcmin 1|60 arcdeg 122ccs 1|36 erlang 123arcsec 1|60 arcmin 124 125steradian radian2 126sphere 4 pi-steradian 127sr steradian 128 129# Time 130 131second sec 132s sec 133minute 60 sec 134min minute 135hour 60 min 136hr hour 137day 24 hr 138da day 139week 7 day 140year 365.24219879 day fuzz 141yr year 142month 1|12 year 143us microsec 144 145# Mass 146 147gram millikg 148gm gram 149metricton kilokg 150 151# Avoirdupois 152 153lb .45359237 kg 154pound lb 155lbf lb g 156ounce 1|16 lb 157oz ounce 158dram 1|16 oz 159dr dram 160grain 1|7000 lb 161gr grain 162shortton 2000 lb 163ton shortton 164longton 2240 lb 165 166# Apothecary 167 168scruple 20 grain 169apdram 60 grain 170apounce 480 grain 171appound 5760 grain 172troypound appound 173 174# Mining 175 176troyounce apounce 177troz apounce 178pennyweight 1|20 troz 179pwt pennyweight 180dwt pennyweight 181 182# Length 183 184meter m 185micron micrometer 186angstrom decinanometer 187ao 0.25 alpha/pi/rydbergconst 188 189inch 2.54 cm 190in inch 191foot 12 in 192feet foot 193ft foot 194yard 3 ft 195yd yard 196rod 5.5 yd 197rd rod 198mile 5280 ft 199mi mile 200 201british 1200|3937 m/ft 202nmile 1852 m 203 204acre 4840 yd2 205 206cc cm3 207liter kilocc 208ml milliliter 209 210# US Liquid 211 212gallon 231 in3 213imperial 1.20095 214gal gallon 215quart 1|4 gal 216qt quart 217pint 1|2 qt 218pt pint 219 220floz 1|16 pt 221fldr 1|8 floz 222shot 3|2 floz 223 224# US Dry 225 226dry 268.8025 in3/gallon fuzz 227peck 8 dry-quart 228pk peck 229bushel 4 peck 230bu bushel 231chaldron 36 bushel 232 233# British 234 235brgallon 277.420 in3 fuzz 236brquart 1|4 brgallon 237brpint 1|2 brquart 238brfloz 1|20 brpint 239brpeck 554.84 in3 fuzz 240brbushel 4 brpeck 241brhundredweight 112 lb 242 243# Bottles 244 245bottle 750 milliliter 246#bottle fifth 247 248miniature 100 milliliter 249split 1|4 bottle 250half 1|2 bottle 251magnum 2 bottle 252jeroboam 4 bottle 253rehoboam 6 bottle 254methuselah 8 bottle 255salmanazar 12 bottle 256balthazar 16 bottle 257nebuchadnezzar 20 bottle 258sovereign 34 bottle 259 260# Bottles - alternate names and spellings 261 262pony split 263fillette half 264tappit-hen 3 imperial 265rheoboam rehoboam 266shalmaneser salmanazar 267 268# Russian 269berkovets 10 pood 270pood 40 funt 271funt 0.40951 kg 272lot 1|32 funt 273zolotnik 1|3 lot 274dolya 1|96 zolotnik 275rumile 7 verst 276mezhevayaverst 2 verst 277verst 1066.8 m 278sazhen 1|500 verst 279kosayasazhen 1|430.2 verst 280arshin 1|1500 verst 281# is not exactly defined 282ruell 16.54 in 283liniya 1|10 in 284vershok 1.75 in 285pyad 7 in 286vedro 12.3 liter 287shtoff 1|10 vedro 288vinebottle 1|16 vedro 289vodkabottle 1|20 vedro 290charka 1|100 vedro 291shkalik 1|200 vedro 292desyatina_state 109.3 are 293desyatina_farmery 0.75 desyatina_state 294sqverst 104.2 desyatina_state 295sqarshin 1|21600 desyatina_state 296sqfoot 1|117600 desyatina_state 297 298# Energy Work 299 300newton kg-m/sec2 301nt newton 302N newton 303joule nt-m 304J joule 305cal 4.1868 joule 306ergon erg 307 308# Electrical 309 310coulomb coul 311C coul 312ampere coul/sec 313A ampere 314amp ampere 315watt joule/sec 316W watt 317volt watt/amp 318ohm volt/amp 319mho /ohm 320farad coul/volt 321F farad 322henry sec2/farad 323H henry 324weber volt-sec 325Wb weber 326 327# Light 328 329cd candela 330lumen cd sr 331lux cd sr/m2 332 333# EMU currencies have constant exchange rate against Euro since 1.1.1999. 334# See https://en.wikipedia.org/wiki/Euro for details. 335austriaschilling 1|13.7603 euro 336belgiumfranc 1|40.3399 euro 337finlandmarkka 1|5.94573 euro 338francefranc 1|6.55957 euro 339germanymark 1|1.95583 euro 340greecedrachma 1|340.750 euro 341irelandpunt 1|0.787564 euro 342italylira 1|1936.27 euro 343luxembourgfranc 1|40.3399 euro 344netherlandsguilder 1|2.20371 euro 345portugalescudo 1|200.482 euro 346spainpeseta 1|166.386 euro 347sloveniantolar 1|239.640 euro 348cypriotpound 1|0.585274 euro 349malteselira 1|0.429300 euro 350slovakkoruna 1|30.1260 euro 351 352# These ones are pegged to the Euro 353# See https://en.wikipedia.org/wiki/Euro for details. 354bosniaherzegovinamark 1|1.95583 euro 355bulgarianlev 1|1.95583 euro 356capeverdeanescudo 1|110.265 euro 357centralafricancfafranc 1|655.957 euro 358comorosfranc 1|491.96775 euro 359danishkrone 1|7.46038 euro 360estoniakroon 1|15.6466 euro 361lithuanianlitas 1|3.45280 euro 362pacificfrancexchange 1|0.00838 euro 363westafricancfafranc 1|655.957 euro 364 365# ISO Currency Codes 366 367AED uaedirham 368AFN afghanafghani 369ALL albanialek 370AMD armeniadram 371AOA angolakwanza 372ARS argentinapeso 373AUD australiadollar 374AWG arubaflorin 375AZN azerbaijanmanat 376BAM bosniaconvertiblemark 377BBD barbadosdollar 378BDT bangladeshtaka 379BGN bulgarialev 380BHD bahraindinar 381BIF burundifranc 382BMD bermudadollar 383BND bruneidollar 384BOB boliviaboliviano 385BRL brazilreal 386BSD bahamasdollar 387BTN bhutanngultrum 388BWP botswanapula 389BYR belarusruble 390BZD belizedollar 391CAD canadadollar 392CDF drcfranccongolais 393CHF swissfranc 394CLP chilepeso 395CMG sintmaartencaribbeanguilder 396CNY chinayuan 397COP colombiapeso 398CRC costaricacolon 399CUP cubapeso 400CVE capeverdeescudo 401CZK czechkoruna 402DJF djiboutifranc 403DKK denmarkkrona 404DOP dominicanrepublicpeso 405DZD algeriadinar 406EGP egyptpound 407ERN eritreanakfa 408ETB ethiopianbirr 409EUR euro 410FJD fijidollar 411FKP falklandislandspound 412GBP ukpound 413GEL georgialari 414GGP guernseypound 415GHS ghanacedi 416GIP gibraltarpound 417GMD gambiadalasi 418GNF guineafranc 419GTQ guatemalaquetzal 420GYD guyanadollar 421HKD hongkongdollar 422HNL honduraslempira 423HRK croatiakuna 424HTG haitigourde 425HUF hungariaforint 426IDR indonesiarupiah 427ILS israelnewshekel 428IMP manxpound 429INR indiarupee 430IQD iraqdinar 431IRR iranrial 432ISK icelandkrona 433JEP jerseypound 434JMD jamaicadollar 435JOD jordandinar 436JPY japanyen 437KES kenyaschilling 438KGS kyrgyzstansom 439KHR cambodiariel 440KMF comorosfranc 441KPW northkoreawon 442KRW southkoreawon 443KWD kuwaitdinar 444KYD caymanislandsdollar 445KZT kazakhstantenge 446LAK laokip 447LBP lebanonpound 448LKR srilankanrupee 449LRD liberiadollar 450LTL lithuanialita 451LVL latvialat 452LYD libyadinar 453MAD moroccodirham 454MDL moldovaleu 455MGA madagascarariary 456MKD macedoniadenar 457MMK myanmarkyat 458MNT mongoliatugrik 459MOP macaupataca 460MRO mauritaniaouguiya 461MUR mauritiusrupee 462MVR maldiverufiyaa 463MWK malawikwacha 464MXN mexicopeso 465MYR malaysiaringgit 466MZN mozambicanmetical 467NAD namibiadollar 468NGN nigerianaira 469NIO nicaraguacordobaoro 470NOK norwaykrone 471NPR nepalrupee 472NZD newzealanddollar 473OMR omanrial 474PAB panamabalboa 475PEN perunuevosol 476PGK papuanewguineakina 477PHP philippinepeso 478PKR pakistanrupee 479PLN polandzloty 480PYG paraguayguarani 481QAR qatarrial 482RON romanianewlei 483RSD serbiadinar 484RUB russiarouble 485RWF rwandafranc 486SAR saudiarabiariyal 487SBD solomonislandsdollar 488SCR seychellesrupee 489SDG sudanpound 490SEK swedenkrona 491SGD singaporedollar 492SHP sainthelenapound 493SLL sierraleoneleone 494SOS somaliaschilling 495SRD surinamedollar 496STD saotome&principedobra 497SVC elsalvadorcolon 498SYP syriapound 499SZL swazilandlilangeni 500THB thailandbaht 501TJS tajikistansomoni 502TMT turkmenistanmanat 503TND tunisiadinar 504TOP tongapa'anga 505TRY turkeylira 506TTD trinidadandtobagodollar 507TVD tuvaludollar 508TWD taiwandollar 509TZS tanzaniashilling 510UAH ukrainehryvnia 511UGX ugandaschilling 512USD usdollar 513UYU uruguaypeso 514UZS uzbekistansum 515VEF venezuelabolivar 516VND vietnamdong 517VUV vanuatuvatu 518WST samoatala 519XAF centralafricancfafranc 520XCD eastcaribbeandollar 521XDR specialdrawingrights 522XOF westafricanfranc 523XPF cfpfranc 524YER yemenrial 525ZAR southafricarand 526ZMW zambiakwacha 527ZWL zimbabwedollar 528 529# These ones are pegged on the US Dollar 530# See https://en.wikipedia.org/wiki/USD for details. 531dollar usdollar 532arubanflorin 1|1.75 usdollar 533bahamiandollar 1|1 usdollar 534bahrainidinar 1|0.376 usdollar 535barbadiandollar 1|2 usdollar 536belizedollar 1|2 usdollar 537belarusianruble 1|2135 usdollar 538bermudiandollar 1|1 usdollar 539caymanislandsdollar 1.2 usdollar 540cubanconvertiblepeso 1.08 usdollar 541djiboutianfranc 1|177.721 usdollar 542eastcaribbeandollar 1|2.7 usdollar 543eritreannakfa 1|15 usdollar 544hongkongdollar 1|7.80 usdollar 545macanesepatacas 1|1.03 hongkongdollar 546jordaniandinar 1|0.709 usdollar 547lebanesepound 1|1507.5 usdollar 548maldivianrufiyaa 1|12.8 usdollar 549netherlandsantilleanguilder 1|1.79 usdollar 550omanirial 2.6008 usdollar 551qataririyal 1|3.64 usdollar 552saudiriyal 1|3.75 usdollar 553unitedarabemiratesdirham 1|3.6725 usdollar 554 555bosniamark bosniaherzegovinamark 556cfafranc centralafricancfafranc 557cfpfranc pacificfrancexchange 558drachma greecedrachma 559escudo portugalescudo 560franc francefranc 561guilder netherlandsguilder 562herzegovinamark bosniaherzegovinamark 563hollandguilder netherlandsguilder 564lira italylira 565mark germanymark 566markka finlandmarkka 567peseta spainpeseta 568rand southafricarand 569 570# computer 571 572baud bit/sec 573nibble 4 bit 574nybble nibble 575byte 8 bit 576word 2 byte 577block 512 byte 578kbyte 1024 byte 579megabyte 1024 kbyte 580gigabyte 1024 megabyte 581terabyte 1024 gigabyte 582petabyte 1024 terabyte 583exabyte 1024 petabyte 584zettabyte 1024 exabyte 585yottabyte 1024 zettabyte 586kilobyte kbyte 587meg megabyte 588 589 590# Trivia 591 592% 1|100 593abampere 10 ampere 594admiraltyknot 6080 ft/hr 595apostilb cd/pi-m2 596are 1e+2 m2 597asb apostilb 598arpentcan 27.52 mi 599arpentlin 191.835 ft 600astronomicalunit au 601atmosphere 1.01325e+5 nt/m2 602atm atmosphere 603atomicmassunit 1.66053878283e-27 kg fuzz 604# year 3.15569259747e7 sec fuzz 605amu atomicmassunit 606bag 94 lb 607bakersdozen 13 608bar 1e+5 nt/m2 609barie 1e-1 nt/m2 610barleycorn 1|3 in 611beardsecond 5 nm 612barn 1e-28 m2 613oilbarrel 42 gal 614barrel oilbarrel 615barye 1e-1 nt/m2 616baryl microbar 617bev 1e+9 e-volt 618biot 10 amp 619blondel cd/pi-m2 620boardfoot 144 in3 621bolt 40 yd 622bottommeasure 1|40 in 623britishthermalunit 1.05506e+3 joule fuzz 624btu britishthermalunit 625refrigeration 12000 btu/ton-hour 626buck usdollar 627cable 720 ft 628caliber 1e-2 in 629calorie cal 630carat 205 milligram 631caratgold 1|24 632cent centidollar 633cental 100 lb 634centesimalminute 1e-2 grade 635centesimalsecond 1e-4 grade 636century 100 year 637cfs ft3/sec 638chain 66 ft 639circularinch 1|4 pi-in2 640circularmil 1e-6|4 pi-in2 641clusec 1e-8 mm-hg m3/s 642coomb 4 bu 643cord 128 ft3 644cordfoot cord 645crith 9.06e-2 gm 646cubit 18 in 647cup 1|2 pt 648curie 3.7e+10 /sec 649dalton amu 650decade 10 yr 651dioptre /m 652displacementton 35 ft3 653doppelzentner 100 kg 654dozen 12 655drop .03 cm3 656dyne cm-gm/sec2 657electronvolt e-volt 658ell 45 in 659engineerschain 100 ft 660engineerslink 100|100 ft 661equivalentfootcandle lumen/pi-ft2 662equivalentlux lumen/pi-m2 663equivalentphot cd/pi-cm2 664erg cm2-gm/sec2 665ev e-volt 666faraday 9.6485309e+4 coul 667fathom 6 ft 668fermi 1e-15 m 669fifth 4|5 qt 670fin 5 usdollar 671finger 7|8 in 672firkin 9 gal 673footcandle lumen/ft2 674footlambert cd/pi-ft2 675fortnight 14 da 676franklin 3.33564e-10 coul 677frigorie kilocal 678furlong 220 yd 679galileo 1e-2 m/sec2 680gamma 1e-9 weber/m2 681gauss 1e-4 weber/m2 682G gauss 683geodeticfoot british-ft 684geographicalmile 1852 m 685gilbert 2.5 amp/pi 686gill 1|4 pt 687gross 144 688gunterschain 22 yd 689hand 4 in 690hartree 2 rydberg 691head water 692hectare 1e+4 m2 693hefnercandle .92 cd 694hertz /sec 695Hz hertz 696hogshead 63 gallon 697hd hogshead 698homestead 1|4 mi2 699horsepower 735.50 watt 700donkeypower 250 watt 701hp horsepower 702hubble 1e9 ly 703hyl gm force sec2/m 704hz /sec 705imaginarycubicfoot 1.4 ft3 706jansky 1e-26 W/m2-Hz 707Jy jansky 708karat 1|24 709kayser /cm 710key kg 711kilderkin 18 gal 712knot nmile/hr 713kn knot 714lambert cd/pi-cm2 715Lb lambert 716langley cal/cm2 717last 80 bu 718league 3 mi 719lightyear c-yr 720ly lightyear 721line 1|12 in 722link 66|100 ft 723longhundredweight 112 lb 724longquarter 28 lb 725lusec 1e-6 mm-hg m3/s 726m_earth 5.97223e24 kg 727m_moon 7.34e22 kg 728m_sun 1.98843e30 kg 729mach 331.46 m/sec 730marineleague 3 nmile 731maxwell 1e-8 weber 732Mx maxwell 733metriccarat 200 milligram 734mgd megagal/day 735mh millihenry 736mil 1e-3 in 737millennium 1000 year 738minersinch 1.5 ft3/min 739minim 1|60 fldr 740mo month 741mpg mile/gal 742mph mile/hr 743nail 1|16 yd 744nauticalmile nmile 745nit cd/m2 746noggin 1|8 qt 747nox 1e-3 lux 748oersted 2.5e+2 amp/m/pi 749Oe oersted 750pace 36 in 751pair 2 752palm 3 in 753parasang 3.5 mi 754parsec AU-radian/arcsec 755pascal nt/m2 756Pa pascal 757pc parsec 758percent % 759perch rd 760phot lumen/cm2 761pica 1|6 in 762pieze 1e+3 nt/m2 763pipe 4 barrel 764point 1|72 in 765poise gm/cm-sec 766P poise 767pole rd 768pond 9.80665e-3 nt 769potrzebie 2.263348517438173216473 mm 770poundal ft-lb/sec2 771pdl poundal 772proof 1|200 773psi lb-g/in2 774quarter 9 in 775quartersection 1|4 mi2 776quintal 100 kg 777quire 25 778r_earth 6.378e8 cm 779r_moon 1.738e7 cm 780r_sun 6.9599e10 cm 781rackunit 1.75 in 782rad 100 erg/gm 783ream 500 784registerton 100 ft3 785rem 0.01 J/kg 786rhe 10 m2/nt-sec 787rontgen 2.58e-4 curie/kg 788roentgen rontgen 789rood 1.21e+3 yd 790rope 20 ft 791RU rackunit 792rutherford 1e+6 /sec 793rydbergconst 0.5 elctronmass-c-alpha2/planck 794rydberg rydbergconst-planck-c 795sabin 1 ft2 796sack 3 bu 797score 20 798seam 8 bu 799section mi2 800shed 1e-24 barn 801shippington 40 ft3 802shorthundredweight 100 lb 803shortquarter 25 lb 804siemens /ohm 805sigma microsec 806skein 120 yd 807skot 1e-3 apostilb 808slug lb-g-sec2/ft 809smoot 67 in 810span 9 in 811spat 4 pi sr 812spindle 14400 yd 813square 100 ft2 814stere m3 815sthene 1e+3 nt 816stilb cd/cm2 817sb stilb 818stoke 1e-4 m2/sec 819stone 14 lb 820strike 2 bu 821surveyfoot british-ft 822surveyyard 3 surveyfoot 823surveyorschain 66 ft 824surveyorslink 66|100 ft 825tablespoon 4 fldr 826tbl tablespoon 827tbsp tablespoon 828teaspoon 4|3 fldr 829tesla weber/m2 830T tesla 831therm 1e+5 btu 832thermie 1e+6 cal 833timberfoot ft3 834tnt 4.6e+6 m2/sec2 835tonne 1e+6 gm 836torr mm hg 837township 36 mi2 838tsp teaspoon 839tun 8 barrel 840water gram g / cc 841wey 40 bu 842weymass 252 lb 843Xunit 1.00206e-13 m 844k 1.38047e-16 erg/degC 845 846 847degC 1&+273.15 K 848kelvin K 849brewster 1e-12 m2/newton 850degF 5|9&255.37222222222222222222 K 851degreesrankine 5|9 K 852degrankine degreesrankine 853degreerankine degreesrankine 854degreaumur 10|8&+273.15 K 855gasmark 25|1&250 degF 856Stufe 25|1&125 degC 857drachm 60 grain 858poncelet 100 kg m g / sec 859denier .05|450 gram / m 860tex .001 gram / m 861englishell 45 inch 862scottishell 37.2 inch 863flemishell 27 inch 864V volt 865eV e V 866bohrradius hbar2-C2/8.988e9 N m2-e2-electronmass 867becquerel 1|3.7e10 curie 868fresnel 1e12 hertz 869statcoul 1|2.99792458e9 coul 870statamp 1|2.99792458e9 amp 871statvolt 2.99792458e2 volt 872statcoulomb statcoul 873statampere statamp 874debye 3.33564e-30 coul-m 875pulsatance 2 pi/sec 876rpm rev/minute 877rps rev/sec 878kilohm kiloohm 879megohm megaohm 880siderealyear 365.256360417 day 881siderealday 23.934469444 hour 882siderealhour 1|24 sidereal day 883lunarmonth 29.5305555 day 884synodicmonth lunarmonth 885siderealmonth 27.32152777 day 886tropicalyear year 887solaryear year 888lunaryear 12 lunarmonth 889cran 37.5 brgallon 890kip 1000 lbf 891frenchfoot 16|15 ft 892frenchfeet frenchfoot 893toise 6 frenchfeet 894sievert 8.4 rontgen 895candle 1.02 candela 896militarypace 2.5 feet 897metre meter 898litre liter 899gramme gram 900iudiptheria 62.8 microgram 901iupenicillin .6 microgram 902iuinsulin 41.67 microgram 903cottonyarncount 2520 ft/pound 904linenyarncount 900 ft/pound 905worstedyarncount 1680 ft/pound 906metricyarncount meter/gram 907jewlerspoint 2 milligram 908