This is documentation for Mathematica 3, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)
 Documentation / Mathematica / Add-ons / Standard Packages / Miscellaneous  /

Miscellaneous`PhysicalConstants`

In addition to providing a comprehensive environment for calculations and a programming language, Mathematica is also a system for representing and presenting scientific and technical knowledge. Certain packages are included with Mathematica to provide easy access to commonly used scientific data, such as the value of physical constants and conversion factors for various systems of units.


Some common physical constants.

  • This loads the package.
  • In[1]:= <<Miscellaneous`PhysicalConstants`

  • This gives the mass of a proton.
  • In[2]:= ProtonMass

    Out[2]=

  • Here is the distance that light could travel in the age of the universe.
  • In[3]:= SpeedOfLight AgeOfUniverse

    Out[3]=


    Physical constants.