常见单位转换关系式

1、常见单位转换关系式发布：2008-12-1410:51|作者：llljq|来源：管道与设备技术网url=Acceleration/urlfoot/second2,meter/second2,gal,galileo,inch/second21m/s2=ft/s2=100cm/s2=inchpersecondsquared(inch/s2)1ft/s2=m/s2=cm/s21g=m/s2=ft/s2url=Area/urlacre,are,barn,.,.,foot2,hectare,inch2,mile2,section,meter2,township,yard2,hectares1m2=155

2、0in2=ft2=yd2=mile21ft2=m2=144in2=0,1111yd2=mile21in2=cm2=m2=ft2=yd2=mile21yd2=m2=1,296in2=9ft2=mile21mile2=m2=in2=ft2=yd2=640Acres1acre=1/640mile2=ha(Hectares)=4,m2=43,560.=4840.1km2=102ha2=106m2=1010cm2=1012mm21ha(Hectare)=104m2=108cm2=1010mm2=Acres1cm2=10-4m2=in21mm2=1township=107m21section=106m2u

3、rl=Density/urlkg/cubicmeter,gram/centimeter3,lmb/cubicinch,lbm/cubicfoot,slug/cubicfoot,kilogram/cubicmeter,lbm/gallon(USliq)DensityWater1,000kg/m3=Lbs./=Lbs./Gal.=./Gal.1lb/ft3=kg/m3=g/cm3=oz/in3=oz/gal(Imperial)=oz/gal(U.S.)=lb/in3=27lb/yd3=lb/gal(Imperial)=lb/gal=ton/yd31slug/ft3=kg/m31kg/l=lb/ft

4、31kg/m3=g/cm3=oz/in3=oz/gal(Imperial)=oz/gal(U.S.)=lb/ft3=lb/in3=lb/yd3=lb/gal(Imperial)=lb/gal=ton/yd3url=Energy/urlBritishThermalUnit(Btu),calorie,joule,kilojoule,electronvolt,erg,footlbf,footpoundal,kilocalorie,kilowatthour,watthour,1J(Joule)=0,1020kpm=kWh=kcal=ftlbf=1(kgm2)/s2=1wattsecond=1Nm=1f

5、tlb=Btu1kpm=J=kWh=kcal=ftlbf=Btu1kWh=J=kpm=kcal=ftlbf=Btu1kJ=1kNm=1kWs=103J=Btu=ftlbf=kcal1Btu(Britishthermalunit)=1,J=kpm=kWh=kcal=ftlbf=ergs=252cal=watthour1cal=J1kcal=4186,8J=426,9kpm=kWh=ftlbf=Btu=1,000cal1ftlbf(footpoundforce)=J=kpm=kWh=kcal=Btu1hph(horsepowerhour)=J=kWh1erg=1(gcm2)/s2=10-7J1eV

6、=J1Q=1018Btu=J1Quad=1015Btu1kgm=ftlb=Btu=Jouleurl=Energyperunitmass/url1kJ/kg=1J/g=Btu/lbm=kcal/kgurl=Flow/url-seeVolumeflowurl=Force/urldyne,kilogramforce(kgf),kilopoundforce,kip,lbf(poundforce),ounceforce(avoirdupois),poundal,newton1N(Newton)=kp=pdl=lbf=lbf=1(kgm)/s2=105dyn=1/kgf1lbf(Poundforce)=N

7、=kp=pdl=dyn1dyn=1(gcm)/s21kghasaweightof1kp1 kp(Kilopond)=N=Ibf=pdl1pdl(Poundal)=N=kp=Ibfurl=Heatflowrate/url1Btu/sec=1,W1kW(kJ/s)=kpm/s=J/hkcal/h=3,413Btu/h=hk二=hp=738ftlb/s1kpm/s=kW=kcal/h=Btu/h=hk=hp=ftlb/s1kcal/h=kW=kpm/s=Btu/h=hk=hp=ftlb/s1Btu/h=kW=kpm/s:1kcal/h=kW=kcal/h=hk=hp=ftlb/s1hk(metric

8、horsepower)=kW=kpm/s=kcal/h=2,510Btu/h=1hp=kW=kpm/s=kcal/h=2,545Btu/h=hk=ftlb/s1ftlb/s=kW=kpm/s=kcal/h=Btu/h:=hk：=hp=1,000J/s=hp=ftlb/surl=Heatflux/url1Btu/ft2=kcal/m2=J/m2K1Btu/ft2h=W/m21Btu/ft2oF=kcal/m2K=J/m2K1kcal/m2=Btu/ft21kcal/m2K=Btu/ft2oFurl=Heatgenerationperunitvolume/url1Btu/ft3=kcal/m3=J

9、/m31Btu/ft3h=W/m31kcal/m3=Btu/ft3url=Heatgenerationperunitmass/url1Btu/lb=kcal/kg=2,326J/kg1kcal/kg=Btu/lbkcal/hm2oCurl=Heattransfercoefficient/url1Btu/ft2hoF=W/m2K=1W/m2K=kcal/hm2oC=Btu/ft2hoF1kcal/hm2oC=W/m2K=Btu/ft2hoFurl=HydraulicGradients/url1ftH2O/100ft=psi/100ft=kPa/100m=1000mmH2O/100m1psi/10

10、0ft=ftH2O/100ft=2288mmH2O/100ft=kPa/100murl=Length/urlfeet,meters,centimeters,kilometers,miles,furlongs,yards,micrometers,inches,angstrom,cubit,fathom,foot,hand,league,lightyear,micron,mil,nauticalmile,rod,1m(meter)=ft=in=yd=mile1km=mile=3281ft=1094yds1in(inch)=mm=cm=m=ft=yd=mile1ft(foot)=m=12in=yd=

11、mile=cm=mm1mm=10-3m1cm=10-2m=in=ft1mm=in1(ngstrm)=-10m1mile=km=1,m=63,346in=5,280ft=1,760yd1mil(NorwayandSweden)=10kilometres1nm(nauticalmile)=1,852metres=mile=feet1yd(yard)=m=36in=3ft=mile1Furlong=660feet=40rods=1/8mile1rod=yards1landleague=3miles1Fathom=6feet=metersurl=Mass/url,weightpounds,kilogr

12、ams,grams,ounces,grains,tons(long),tons(short),tons(metric),carat,grain,ouncemass,poundmass(lbm),slug,tonne1kg=1,000g=lb=slug1lb=16oz=kg=g=7000grains=slug1slug=kg=lbm1grain=lb=g1g=grains=oz=lb1tonne=103kg=106g=109mg=tons1qt=liters1Ton=2000Lbs.=907kg1longton=2240pounds1oz(ounce)=g=grains1troypound=12

13、troyounces1scruple=20grains1dram=3scruples1apothecaryounce=8drams1apothecarypound=12apothecaryounces1pennyweight=24grains1Gal.H2O=Lbs.H2ODensity,SpecificWeightandSpecificGravity-Anintroductionanddefinitionofdensity,specificweightandspecificgravity.Formulaswithexamples.url=Massflowrate/url1lb/h=kg/s1

14、lb/s=kg/s1lb/min=kg/s=kg/s1kg/s=3,600kg/h=lb/min1kg/h=kg/s=lb/minMomentofInertia1kgm2=10000kgcm2=54675ouncein2=lbin2=lbft2url=Power/urlhorsepower,kilowatt,watt,btu/second,calorie/second,footlbf/second,kilocalorie/second1W=1kgm2/s3=1Nm/s=1J/s1kW=1,000Watts=3,412Btu/h=550Britishhp=Britishhp=103/kgfm/s

15、=ftIbf/s=103/75)metrichp1hp(Englishhorsepower)=W=kW=550ftlb/s=2,545Btu/h=ftlb/m=metrichorsepower=KVA1metrichorsepower=736W=75kgm/s=Englishhorsepower1refrigerationTon=12,000Btu/hcooling=kW=3,kCalories/h1coolingtowerTon=15,000Btu/h=3,782kCalories/h1Therm=100,000Btu/h1ftlb/s=W1Btu/s=W1Btu/h=1Btuh=W=MBH

16、url=Powerperunitarea/url1W/m2=Btu/(hft2)=kcal/(hm2)url=Pressure/urlatmosphere,centimetersofmercury,footofwater,bar,barye,centimeterofwater,dyne/centimeter2,inchofmercury,inchofwater,kgf/centimeter2,kgf/meter2,lbf/foot2,lbf/inch2(psi),millibar,millimeterofmercury,pascal,torr,newton/meter2StandardAtmo

17、sphericPressure1atm=kN/m2=kPa=psia=0psig=inHg=760torr=(WaterGauge)=Lbs./.1N/m2=1Pa=lb/in2=1x10-5bar=inwater=ftwater=mmwater=inmercury=mmmercury=kg/m2=atm1Pa=10-6N/mm2=10-5bar=kp/m2=mH2O=atm=psi(lbf/in2)1N/mm2=106Pa=10bar=kp/m2=mH2O=atm=psi(lbf/in2)1mmHg=1torr=lb/in21atm=101,325Pa(N/m2)=kN/m2=kp/m2=k

18、p/cm2=bar=psi(lb/in2)=inH2Oat620FoC)=ftH2Oat620FoC)=mH2Oat620FoC)=inmercuryat620FoC)=760mmmercuryat620FoC)=760torr1bar=105Pa(N/m2)=N/mm2=10,197kp/m2=mH2O=atm=psi(lbf/in2)=106dyn/cm2=750mmHg1kp/m2=Pa(N/m2)=N/mm2=10-3mH2O=1mmH2O=atm=psi(lb/in2)=inH2O=mmmercury1psi(lb/in2)=144psf(lbf/ft2)=6,Pa(N/m2)=N/

19、mm2=bar=inH2Oat62oF=mmH2Oat62oF=inmercuryat62oF=mmmercuryat62oF=kg/m2=atm=Ft.H2O=16ounces1psf(lbf/ft2)=N/m2(Pa)=lbf/in2(psi)1dyn/cm2=lbf/in21inmercury(Hg)=3,N/m2=lb/in2=inwater1Ounce=1=psi=Lbs./.1inwater=N/m2=lb/in2=kg/m2=inmercury1mH2O=Pa=N/mm2=bar=1,000kp/m2=atm=psi(lbf/in2)1mmwater=Pa(N/m2)=1kg/m

20、2=mmmercury=atm1mmmercury=lb/in2=133N/m2=mmwaterurl=Rotation/urlrevolutions,1r/min(rpm)=r/s=rad/s1r/s=60r/min=rad/s1rad/s=r/min(rpm)=r/s(rps)url=Specificenergy/url,enthalpy,entropy1Btu/lbm=2,J/kg=kcal/kg=ftlbf/lbm=10-4hphr/lbm=lbf/in2/lbm/ft3=kpm/g=10-4kcal/g=kJ/kg1J/kg=Btu/lbm=kcal/kg1kcal/kg=Btu/l

21、bm=4,187J/kgurl=Specificheatcapacity/url1J/(kgK)=kcal/(kgoC)=Btu/(lbmoF)1kJ/(kgK)=kcal/(kgoC)=Btu/(lbmoF)1Btu/(lbmoF)=4,J/(kgK)=1kcal/(kgoC)1kcal/(kgoC)=4,J/(kgK)=1Btu/(lbmoF)url=SpecificVolume/url1m3/kg=ft3/lbm=27680in3/lbm=USgal/lbm=1000liter/kg1liter/kg=ft3/lbm=in3/lbm=USgal/lbm=m3/kg1ft3/lbm=172

22、8in3/lbm=USgal/lbm=liter/kg=m3/kg1in3/lbm=ft3/lbm=USgal/lbm=liter/kg=m3/kg1USgal/lbm=ft3/lbm=231in3/lbm=liter/kg=m3/kgurl=Temperature/urlcelsius,rankine,kelvin,centigrade,fahrenheit,1oC=oF1oF=oC0oCcorrespondsto32oF,KandRT(oR)=(9/5)T(K)T(oF)=T(oC)(9/5)+32T(oF)=T(K)-(9/5)+32T(oC)=5/9T(oF)-32url=Therma

23、lconductivity/url1W/(mK)=kcal/(hmoC)=Btu/(fthoF)1Btu/(fthoF)=W/(mK)=kcal/(hmoC)1kcal/(hmoC)=W/(mK)=Btu/(fthoF)url=Thermaldiffusivity/url1ft2/s=m2/s1ft2/h=m2/surl=Thermalresistance/url1 (hoF)/Btu=K/Wurl=Time/urlyear,month,day,hour,minute,second,millisecond1h=3,600s=60min1ms(millisecond)=10-3s1s(micro

24、second)=1-6s1ns(nanosecond)=10-9surl=Torque,Moment/urlfoot-poundtorque,newton-meter1ftlb=Nmurl=Velocity/url,speedfoot/second,inch/second,meter/second,kilometer/hour,knot,mile/hour,nauticalmileperhour1ft/s=m/s1ft/min=m/s=km/h=mph1mph=m/s=km/h=88ft/min=5280ft/hr=Ft./sec.=knots1m/s=km/h=ft/min=mph1km/h

25、=m/s=ft/min=mph=knot1 knot(nauticalmileperhour)=m/s=kilometersperhour=milesperhour=1nauticalmilesperhour1 League=Milesurl=Viscositydynamic/url1lb/(fts)=Pas=P=1,488cP=kps/m21cP(Centipoise)=10-3Pas=P=kps/m2=lb/(fts)=(Ns)/m21kg/(ms)=1(Ns)/m2=lbm/(fts)=10Poise1P(Poise)=Pas=100cP=kps/m2=lb/(fts)=kg/ms1Pa

26、s(Ns/m2)=10P(Poise)=103cP=kps/m2=lb/(fts)1kps/m2=Pas=P=9,807cP=lb/(fts)1reyns=11bfs/in2=PasDynamic,AbsoluteandKinematicViscosity-Anintroductiontodynamic,absoluteandkinematicviscosityandhowtoconvertbetweenCentiStokes(cSt),CentiPoises(cP),SayboltUniversalSeconds(SSU)anddegreeEngler.url=Viscositykinema

27、tic/url1ft2/s=m2/s1ft2/h=s1St(Stokes)=1x10-4m2/s=100cSt=ft2/s1m2/s=104St=106cSt=ft2/s=38750ft2/h1cSt(Centistokes)=10-6m2/s=St=ft2/surl=Volume/urlbarrel,gallon,cubiccentimeter(cm3),cubicfeet(foot3),cubicinch(inch3),cubicmeter(meter3),cubicyard(yard3),quarts,liters,acrefoot,boardfoot,bushel,cord,cup,d

28、ram,fluidounce,peck,pint,quart,tablespoon,teaspoon,1ft3=m3=dm3=yd3=Imp.gal(UK)=gal(US)=1,728.1in3=m3=dm3(liter)=cm3=16390mm3=ft31Gallon(U.S.)=m3=dm3(liter)=ft3=yd3=Imp.gal(UK)=4Quarts=8Pints1Imp.gal(UK)=m3=dm3=ft3=yd3=gal(US)1dm3(Liter)=10-3m3=ft3=yd3=Impgal(UK)=Gallons(US)=Quarts=Pints1yd3=m3=dm3=27ft3=Imp.gal(UK)=gal(US)=46,656.=1616Pints=Quarts=Liters1pint(pt)=dm3(liter)=16fl.oz.(fluidounce)=in31km3=109m3=1012dm3(liter)=1015cm3=1018mm31cm3=in31m3=103dm3(liter