Constant
|
Symbol
|
Dimension
|
Expressed in current dimensions
|
speed of light in vacuum
|
|
L T-1
|
speed
|
Gravitational constant
|
|
M-1L3T-2
|
(volume / mass) / time2
|
"reduced Planck's constant" or Dirac's constant
|
where is Planck's constant
|
ML2T-1
|
(mass * area) / time
|
Coulomb force constant
|
where is the permittivity in vacuum
|
Q-2 M L3 T-2
|
(mass * volume) / (charge2 * time2)
|
Boltzmann constant
|
|
ML2T-2Θ-1
|
(mass * area) / (temperature * time2)
|