< Back to SnippetsScientific Constants
20 common scientific constants
<constant ID="constSpeedOfLight" label="c" integer="299792458"/>
<constant ID="constGravity" label="g" approximate="9.80665"/>
<constant ID="constPlank" label="h" approximate="6.62607004081E-34"/>
<constant ID="constAvogadro" label="N" subscript="A" approximate="6.02214085774E23"/>
<constant ID="constIdealGas" label="R" approximate="8.314459848"/>
<constant ID="constElectronMass" label="m" subscript="e" approximate="9.1093835611E-31"/>
<constant ID="constProtronMass" label="m" subscript="p" approximate="1.67262189821E-27"/>
<constant ID="constNeutronMass" label="m" subscript="n" approximate="1.67492747121E-27"/>
<constant ID="constMuonMass" label="m" subscript="μ" approximate="1.883531594E-28"/>
<constant ID="constUniversalGravitation" label="G" approximate="6.6740831E-11"/>
<constant ID="constFaraday" label="F" approximate="96485.332"/>
<constant ID="constBohrRadius" label="a" subscript="0" approximate="5.291772106712E-11"/>
<constant ID="constElectronRadius" label="r" subscript="e" approximate="2.8179402894E-15"/>
<constant ID="constBoltzmann" label="k" approximate="1.3806504E-23"/>
<constant ID="constElectronCharge" label="e" approximate="1.602176487E-19"/>
<constant ID="constAtomicMassUnit" label="u" approximate="1.660538782E-27"/>
<constant ID="constAtmosphericPressure" label="atm" integer="101325"/>
<constant ID="constPermittivity" label="ε" subscript="0" approximate="8.854187817620E-12"/>
<constant ID="constPermeability" label="μ" subscript="0" approximate="1.256637061436E-6"/>
<constant ID="constCoulomb" label="k" subscript="e" approximate="8.987551787368E9"/>