Examples for

Physical Constants

Fundamental physical constants are physical quantities that are universal in nature and have constant values in time. Wolfram|Alpha provides definitions, values and other details for a wide range of physical constants, such as the Newtonian gravitational, Boltzmann and magnetic constants.


Find information about physical constants, including their values, dimensionality and definitions.

Get the value of a physical constant:

Specify a constant by symbol:

Calculations with Constants

Calculate the value of combinations of physical constants and other quantities.

Do computations involving constants: