List of constants
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Mathematical
e (Euler's number)
=
2.71828183
π
=
3.14159265
Golden ratio
=
1.61803399
Physical
c (speed of light)
=
299792458 m s
-1
(Planck's constant)
=
6.626x10
-34
m
2
kg s
-1
(Dirac's constant)
=
1.05457163
-34
J s
e (electron charge)
=
1.60217649x10
-19
C
ε
0
(vacuum permittivity)
=
8.854188x10
-12
F m
-1
μ
0
(magnetic constant)
=
1.256637x10
-6
N A
-2
m
p
(mass of a proton)
=
1.67262164x10
-27
kg
Chemical
Na (Avogadro constant)
=
6.0221415x10
23
Da or AMU
=
1.66053886x10
-27
kg
R (Gas constant)
=
8.314472 J K
-1
mol
-1
k (Boltzmann constant)
=
1.3806505x10
-23
J K
-1
F (Faraday constant)
=
96485.3383 C mol
-1
Standard quantities
g (gravity)
=
9.80665 m s
-2
Atmosphere (pressure)
=
101325 Pa
(Planck's constant)
(Dirac's constant)