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Constants and Values

The following table lists the constants and their values that are available when performing unit conversions. They can be typed in manually or selected from the Constants list in Utilities > Unit Conversions (Handheld: Press k 3).

Constant

Name

Value

_c

Speed of light

299792458 _m/_s

_Cc

Coulomb constant

8987551787.3682 _m/_F

_Fc

Faraday constant

96485.33289 _coul/_mol

_g

Acceleration of gravity

9.80665 _m/_s2

_Gc

Gravitational constant

6.67408E-11 _m3/_kg/_s2

_h

Planck's constant

6.626070040E-34 _J _s

_k

Boltzmann's constant

1.38064852E-23 _J/_¡K

_m0

Permeability of a vacuum

1.2566370614359E-6 _N/_A2

_mb

Bohr magneton

9.274009994E-24 _J _m2/_Wb

_Me

Electron rest mass

9.10938356E-31 _kg

_Mm

Muon mass

1.883531594E-28 _kg

_Mn

Neutron rest mass

1.674927471E-27 _kg

_Mp

Proton rest mass

1.672621898E-27 _kg

_Na

Avogadro's number

6.022140857E23 /_mol

_q

Electron charge

1.6021766208E-19 _coul

_Rb

Bohr radius

5.2917721067E-11 _m

_Rc

Molar gas constant

8.3144598 _J/_mol/_¡K

_Rdb

Rydberg constant

10973731.568508/_m

_Re

Electron radius

2.8179403227E-15 _m

_u

Atomic mass

1.660539040E-27 _kg

_Vm

Molar volume

2.2413962E-2 _m3/_mol

_H0

Permittivity of a vacuum

8.8541878176204E-12 _F/_m

_s

Stefan-Boltzmann constant

5.670367E-8 _W/_m2/_¡K4

_f0

Magnetic flux quantum

2.067833831E-15 _Wb