SI Unit system#
You can check out this unit system’s functions in its base class:
- unitsSI
unitsSIunitsSI.__add__()unitsSI.__eq__()unitsSI.__ge__()unitsSI.__gt__()unitsSI.__iadd__()unitsSI.__imul__()unitsSI.__isub__()unitsSI.__itruediv__()unitsSI.__le__()unitsSI.__lt__()unitsSI.__mul__()unitsSI.__ne__()unitsSI.__neg__()unitsSI.__radd__()unitsSI.__rmul__()unitsSI.__rsub__()unitsSI.__rtruediv__()unitsSI.__sub__()unitsSI.__truediv__()unitsSI.fromLinearInterpolation()unitsSI.setZero()unitsSI.str()unitsSI.toDebugString()unitsSI.AunitsSI.DaunitsSI.EhunitsSI.GHzunitsSI.HzunitsSI.JunitsSI.JPerMolunitsSI.JPerMolToEhunitsSI.JPerMolToeVunitsSI.JperMolTokcalPerMolunitsSI.KunitsSI.MHzunitsSI.NunitsSI.a0unitsSI.aAunitsSI.aKunitsSI.acdunitsSI.agunitsSI.amunitsSI.amolunitsSI.ampereunitsSI.angstromunitsSI.asunitsSI.attoampereunitsSI.attocandelaunitsSI.attogramunitsSI.attokelvinunitsSI.attometerunitsSI.attomoleunitsSI.attosecondunitsSI.auActionunitsSI.auChargeunitsSI.auMassunitsSI.auTimeunitsSI.bohrunitsSI.cAunitsSI.cKunitsSI.candelaunitsSI.ccdunitsSI.cdunitsSI.centiampereunitsSI.centicandelaunitsSI.centigramunitsSI.centikelvinunitsSI.centimeterunitsSI.centimoleunitsSI.centisecondunitsSI.cgunitsSI.cmunitsSI.cmolunitsSI.csunitsSI.dAunitsSI.dKunitsSI.daAunitsSI.daKunitsSI.dacdunitsSI.dagunitsSI.daltonunitsSI.damunitsSI.damolunitsSI.dcdunitsSI.decaampereunitsSI.decacandelaunitsSI.decagramunitsSI.decakelvinunitsSI.decameterunitsSI.decamoleunitsSI.deciampereunitsSI.decicandelaunitsSI.decigramunitsSI.decikelvinunitsSI.decimeterunitsSI.decimoleunitsSI.decisecondunitsSI.dgunitsSI.dmunitsSI.dmolunitsSI.dsunitsSI.eVunitsSI.electronChargeunitsSI.electronMassunitsSI.electronvoltunitsSI.fAunitsSI.fKunitsSI.fcdunitsSI.femtoampereunitsSI.femtocandelaunitsSI.femtogramunitsSI.femtokelvinunitsSI.femtometerunitsSI.femtomoleunitsSI.femtosecondunitsSI.fgunitsSI.fmunitsSI.fmolunitsSI.fsunitsSI.gunitsSI.gigahertzunitsSI.gramunitsSI.hAunitsSI.hBarunitsSI.hKunitsSI.hartreeunitsSI.hcdunitsSI.hectoampereunitsSI.hectocandelaunitsSI.hectogramunitsSI.hectokelvinunitsSI.hectometerunitsSI.hectomoleunitsSI.hertzunitsSI.hgunitsSI.hmunitsSI.hmolunitsSI.isDimensionlessunitsSI.jouleunitsSI.joulePerMoleunitsSI.joulePerMoleToElectronvoltunitsSI.joulePerMoleToHartreeunitsSI.joulePerMoleToKilocaloriePerMoleunitsSI.kAunitsSI.kHzunitsSI.kJunitsSI.kKunitsSI.kcalPerMolunitsSI.kcdunitsSI.kelvinunitsSI.kgunitsSI.kiloampereunitsSI.kilocaloriePerMoleunitsSI.kilocandelaunitsSI.kilogramunitsSI.kilohertzunitsSI.kilojouleunitsSI.kilokelvinunitsSI.kilometerunitsSI.kilomoleunitsSI.kmunitsSI.kmolunitsSI.munitsSI.mAunitsSI.mKunitsSI.mcdunitsSI.megahertzunitsSI.meterunitsSI.mgunitsSI.microampereunitsSI.microcandelaunitsSI.microgramunitsSI.microkelvinunitsSI.micrometerunitsSI.micromoleunitsSI.microsecondunitsSI.milliampereunitsSI.millicandelaunitsSI.milligramunitsSI.millikelvinunitsSI.millimeterunitsSI.millimoleunitsSI.millisecondunitsSI.mmunitsSI.mmolunitsSI.molunitsSI.moleunitsSI.msunitsSI.nAunitsSI.nKunitsSI.nNunitsSI.nanoampereunitsSI.nanocandelaunitsSI.nanogramunitsSI.nanokelvinunitsSI.nanometerunitsSI.nanomoleunitsSI.nanonewtonunitsSI.nanosecondunitsSI.ncdunitsSI.newtonunitsSI.ngunitsSI.nmunitsSI.nmolunitsSI.nsunitsSI.pAunitsSI.pKunitsSI.pNunitsSI.pcdunitsSI.pgunitsSI.picoampereunitsSI.picocandelaunitsSI.picogramunitsSI.picokelvinunitsSI.picometerunitsSI.picomoleunitsSI.piconewtonunitsSI.picosecondunitsSI.pmunitsSI.pmolunitsSI.psunitsSI.sunitsSI.secondunitsSI.sizeOfUnitSystemunitsSI.uAunitsSI.uKunitsSI.ucdunitsSI.ugunitsSI.umunitsSI.umolunitsSI.usunitsSI.valueunitsSI.yAunitsSI.yKunitsSI.ycdunitsSI.ygunitsSI.ymunitsSI.ymolunitsSI.yoctoampereunitsSI.yoctocandelaunitsSI.yoctogramunitsSI.yoctokelvinunitsSI.yoctometerunitsSI.yoctomoleunitsSI.yoctosecondunitsSI.ysunitsSI.zAunitsSI.zJunitsSI.zKunitsSI.zcdunitsSI.zeptoampereunitsSI.zeptocandelaunitsSI.zeptogramunitsSI.zeptojouleunitsSI.zeptokelvinunitsSI.zeptometerunitsSI.zeptomoleunitsSI.zeptosecondunitsSI.zgunitsSI.zmunitsSI.zmolunitsSI.zs
There are multiple convenience constructors available for the commonly used units. These convenience constructors internally call the unit system’s base class with proper units. In the case if there is no convenience constructor for a quantity in this unit system that you want to use, you can create it using the base class by providing exponents and scales or by combining quantities with existing convenience constructors using arithmetic operations.
SBQuantity.picometer(1.20)
SBQuantity.pm(1.20)
SBQuantity.femtosecond(100.0)
SBQuantity.fs(100.0)
- Convenience constructors
- Dimensionless quantities
- Length
kilometerhectometerdecametermeterdecimetercentimetermillimetermicrometernanometerangstrompicometerfemtometerattometerzeptometeryoctometerkmhmdammdmcmmmumnmpmfmamzmyminverseKilometerinverseHectometerinverseDecameterinverseMeterinverseDecimeterinverseCentimeterinverseMillimeterinverseMicrometerinverseNanometerinverseAngstrominversePicometerinverseFemtometerinverseAttometerinverseZeptometerinverseYoctometerinverseKminverseHminverseDaminverseMinverseDminverseCminverseMminverseUminverseNminversePminverseFminverseAminverseZminverseYmsquareKilometersquareHectometersquareDecametersquareMetersquareDecimetersquareCentimetersquareMillimetersquareMicrometersquareNanometersquareAngstromsquarePicometersquareFemtometersquareAttometersquareZeptometersquareYoctometersquareKmsquareHmsquareDamsquareMsquareDmsquareCmsquareMmsquareUmsquareNmsquarePmsquareFmsquareAmsquareZmsquareYminverseSquareKilometerinverseSquareHectometerinverseSquareDecameterinverseSquareMeterinverseSquareDecimeterinverseSquareCentimeterinverseSquareMillimeterinverseSquareMicrometerinverseSquareNanometerinverseSquareAngstrominverseSquarePicometerinverseSquareFemtometerinverseSquareAttometerinverseSquareZeptometerinverseSquareYoctometerinverseSquareKminverseSquareHminverseSquareDaminverseSquareMinverseSquareDminverseSquareCminverseSquareMminverseSquareUminverseSquareNminverseSquarePminverseSquareFminverseSquareAminverseSquareZminverseSquareYmcubicKilometercubicHectometercubicDecametercubicMetercubicDecimetercubicCentimetercubicMillimetercubicMicrometercubicNanometercubicAngstromcubicPicometercubicFemtometercubicAttometercubicZeptometercubicYoctometercubicKmcubicHmcubicDamcubicMcubicDmcubicCmcubicMmcubicUmcubicNmcubicPmcubicFmcubicAmcubicZmcubicYminverseCubicKilometerinverseCubicHectometerinverseCubicDecameterinverseCubicMeterinverseCubicDecimeterinverseCubicCentimeterinverseCubicMillimeterinverseCubicMicrometerinverseCubicNanometerinverseCubicAngstrominverseCubicPicometerinverseCubicFemtometerinverseCubicAttometerinverseCubicZeptometerinverseCubicYoctometerinverseCubicKminverseCubicHminverseCubicDaminverseCubicMinverseCubicDminverseCubicCminverseCubicMminverseCubicUminverseCubicNminverseCubicPminverseCubicFminverseCubicAminverseCubicZminverseCubicYmfermimicron
- Mass
kilogramhectogramdecagramgramdecigramcentigrammilligrammicrogramnanogrampicogramfemtogramattogramzeptogramyoctogramkghgdaggdgcgmgugngpgfgagzgyginverseKilograminverseHectograminverseDecagraminverseGraminverseDecigraminverseCentigraminverseMilligraminverseMicrograminverseNanograminversePicograminverseFemtograminverseAttograminverseZeptograminverseYoctograminverseKginverseHginverseDaginverseGinverseDginverseCginverseMginverseUginverseNginversePginverseFginverseAginverseZginverseYg
- Time
seconddecisecondcentisecondmillisecondmicrosecondnanosecondpicosecondfemtosecondattosecondzeptosecondyoctosecondsdscsmsusnspsfszsysinverseSecondinverseDecisecondinverseCentisecondinverseMillisecondinverseMicrosecondinverseNanosecondinversePicosecondinverseFemtosecondinverseAttosecondinverseZeptosecondinverseYoctosecondinverseSinverseDsinverseCsinverseMsinverseUsinverseNsinversePsinverseFsinverseAsinverseZsinverseYsinverseSquareFemtosecond
- Intensity (Ampere)
- Temperature
- Amount of substance
- Luminous intensity
- Base quantities
lengthsquareLengthcubicLengthinverseLengthinverseSquareLengthinverseCubicLengthdistancesquareDistancecubicDistanceinverseDistanceinverseSquareDistanceinverseCubicDistancemasssquareMassinverseMassinverseSquareMasstimesquareTimeinverseTimeinverseSquareTimeintensitysquareIntensityinverseIntensityinverseSquareIntensitytemperaturesquareTemperatureinverseTemperatureinverseSquareTemperatureamountOfSubstancesquareAmountOfSubstanceinverseAmountOfSubstanceinverseSquareAmountOfSubstanceluminousIntensitysquareLuminousIntensityinverseLuminousIntensityinverseSquareLuminousIntensity
- Derived quantities
electricChargevoltageelectricFieldmagneticDensityangularVelocityangularAccelerationpressurelengthMassinverseLengthInverseMassareainverseAreavolumeinverseVolumepositionvelocityaccelerationforceenergyinverseForcelengthPerForceforcePerLengthenergyPerSquareLengthmomentuminverseMomentummomentOfInertiainverseMomentOfInertiaelectronDensity
- Common derived quantities
gigahertzmegahertzkilohertzhertzGHzMHzkHzHzpiconewtonnanonewtonnewtonpNnNNPakilojoulejoulezeptojoulekJJzJjoulePerKelvinJPerKjoulePerMolekilojoulePerMoleJPerMolkJPerMoljouleSecondJSwattWcoulombzeptocoulombCzCcoulombPerMeterCPerMcoulombPerSquareMeterCPerM2voltVvoltPerMeterVPerMfaradFohmOsiemensSweberWbteslagigateslaTGThenryHlumenlmluxlxbecquerelBqgraysievertGySvkatalKat
- Common velocity quantities
- Common acceleration quantities
- Common momentum quantities
- Common momentum of inertia quantities
- Common force quantities