| Constants | |
Constant (Full Name) |
| Value in SI Units |
|
|
|
NA (Avogadro’s number) |
| 6.0221367 x 1023 1 / gmol |
k (Boltzmann) |
| 1.380658 x |
Vm (molar volume) |
| 22.4141 l / gmol |
R (universal gas) |
| 8.31451 J / (gmol•K) |
StdT (standard temperature) |
| 273.15 K |
StdP (standard pressure) |
| 101.325 kPa |
σ |
| 5.67051 x |
c (speed of light) |
| 299792458 m/s |
ε0 (permittivity) |
| 8.85418781761 x |
µ0 (permeability) |
| 1.25663706144 x |
g (acceleration of gravity) |
| 9.80665 m / s2 |
G (gravitation) |
| 6.67259 x |
h (Planck’s) |
| 6.6260755 x |
hbar (Dirac’s) |
| 1.05457266 x |
q (electronic charge) |
| 1.60217733 x |
me (electron mass) |
| 9.1093897 x |
qme (q/me ratio) |
| 175881962000 C / kg |
mp (proton mass) |
| 1.6726231 x |
mpme (mp/me ratio) |
| 1836.152701 |
α (fine structure) |
| 0.00729735308 |
ø (mag flux quantum) |
| 2.06783461 x |
F (Faraday) |
| 96485.309 C / gmol |
R∞ (Rydberg) |
| 10973731.534 1/m |
a0 (Bohr radius) |
| 0.0529177249 nm |
µB (Bohr magneton) |
| 9.2740154 x |
µN (nuclear magneton) |
| 5.0507866 x |
λ0 (photon wavelength) |
| 1239.8425 nm |
f0 (photon frequency) |
| 2.4179883 x 1014 Hz |
λc (Compton wavelength) |
| 0.00242631058 nm |
rad (1 radian) |
| 1 r |
two̟ (2π radians) |
| 6.28318530718 r |
angl ( in trig mode) |
| 180 ° |
c3 (Wien’s) |
| 0.002897756 m•K |
kq (k/q) |
| 0.00008617386 J / (K*C) |
ε0q (ε0/q) |
| 55263469.6 F / (m*C) |
qε0 (q*ε0) |
| 1.4185978 x |
εsi (dielectric constant) |
| 11.9 |
εox (SiO2 dielectric constant) |
| 3.9 |
I0 (ref intensity) |
| 0.000000000001 W / m2 |
Tables of Units and Constants