Fundamental
Physical Constants |
|
|
|
Quantity |
Value |
Uncertainty |
Unit |
|
Speed
of light in vacuum |
299
792 458 |
(exact) |
m
s-1 |
|
Magn.
constant |
12.566
370 614...e-7 |
(exact) |
N
A-2 |
|
Electric
constant |
8.854
187 817...e-12 |
(exact) |
F
m-1 |
|
|
Characteristic impedance
of vacuum |
376.730
313 461... |
(exact) |
ohm |
|
|
Newtonian
constant of gravitation |
6.6742e-11 |
0.0010e-11 |
m3
kg-1 s-2 |
|
|
Newtonian
constant of gravitation over h-bar c |
6.7087e-39 |
0.0010e-39 |
(GeV/c2)-2 |
|
|
Planck
constant |
6.626
0693e-34 |
0.000
0011e-34 |
J
s |
|
|
Planck
constant (eV s) |
4.135
667 43e-15 |
0.000
000 35e-15 |
eV
s |
|
|
Planck
constant over 2 pi times c (MeV fm) |
197.326
968 |
0.000
017 |
MeV
fm |
|
|
Planck
constant over 2 pi |
1.054
571 68e-34 |
0.000
000 18e-34 |
J
s |
|
|
Planck
constant over 2 pi (eV s) |
6.582
119 15e-16 |
0.000
000 56e-16 |
eV
s |
|
|
Planck
mass |
2.176
45e-8 |
0.000
16e-8 |
kg |
|
|
Planck
temperature |
1.416
79e32 |
0.000
11e32 |
K |
|
|
Planck
length |
1.616
24e-35 |
0.000
12e-35 |
m |
|
|
Planck
time |
5.391
21e-44 |
0.000
40e-44 |
s |
|
|
Elementary
charge |
1.602
176 53e-19 |
0.000
000 14e-19 |
C |
|
|
Elementary
charge over h |
2.417
989 40e14 |
0.000
000 21e14 |
A
J-1 |
|
|
Magn.
flux quantum |
2.067
833 72e-15 |
0.000
000 18e-15 |
Wb |
|
|
Conductance
quantum |
7.748
091 733e-5 |
0.000
000 026e-5 |
S |
|
|
Inverse
of conductance quantum |
12
906.403 725 |
0.000
043 |
ohm |
|
|
Josephson
constant |
483
597.879e9 |
0.041e9 |
Hz
V-1 |
|
|
von
Klitzing constant |
25
812.807 449 |
0.000
086 |
ohm |
|
|
Bohr
magneton |
927.400
949e-26 |
0.000
080e-26 |
J
T-1 |
|
|
Bohr
magneton (eV/T) |
5.788
381 804e-5 |
0.000
000 039e-5 |
eV
T-1 |
|
|
Bohr
magneton (Hz/T) |
13.996
2458e9 |
0.000
0012e9 |
Hz
T-1 |
|
|
Bohr
magneton (inverse meters per tesla) |
46.686
4507 |
0.000
0040 |
m-1
T-1 |
|
|
Bohr
magneton (K/T) |
0.671
7131 |
0.000
0012 |
K
T-1 |
|
|
Nuclear
magneton |
5.050
783 43e-27 |
0.000
000 43e-27 |
J
T-1 |
|
|
Nuclear
magneton (eV/T) |
3.152
451 259e-8 |
0.000
000 021e-8 |
eV
T-1 |
|
|
Nuclear
magneton (MHz/T) |
7.622
593 71 |
0.000
000 65 |
MHz
T-1 |
|
|
Nuclear
magneton (inverse meters per tesla) |
2.542
623 58e-2 |
0.000
000 22e-2 |
m-1
T-1 |
|
|
Nuclear
magneton (K/T) |
3.658
2637e-4 |
0.000
0064e-4 |
K
T-1 |
|
|
Fine-structure
constant |
7.297
352 568e-3 |
0.000
000 024e-3 |
|
|
|
Inverse
fine-structure constant |
137.035
999 11 |
0.000
000 46 |
|
|
|
Rydberg
constant |
10
973 731.568 525 |
0.000
073 |
m-1 |
|
|
Rydberg
constant times c (Hz) |
3.289
841 960 360e15 |
0.000
000 000 022e15 |
Hz |
|
Rydberg
constant times hc (J) |
2.179
872 09e-18 |
0.000
000 37e-18 |
J |
|
Rydberg
constant times hc (eV) |
13.605
6923 |
0.000
0012 |
eV |
|
Bohr
radius |
0.529
177 2108e-10 |
0.000
000 0018e-10 |
m |
|
|
Hartree
energy |
4.359
744 17e-18 |
0.000
000 75e-18 |
J |
|
|
Hartree
energy (eV) |
27.211
3845 |
0.000
0023 |
eV |
|
|
Quantum
of circulation |
3.636
947 550e-4 |
0.000
000 024e-4 |
m2
s-1 |
|
|
Quantum
of circulation times 2 |
7.273
895 101e-4 |
0.000
000 048e-4 |
m2
s-1 |
|
|
Fermi
coupling constant |
1.166
39e-5 |
0.000
01e-5 |
GeV-2 |
|
|
Weak
mixing angle |
0.222
15 |
0.000
76 |
|
|
|
Electron
mass |
9.109
3826e-31 |
0.000
0016e-31 |
kg |
|
Electron
mass (u) |
5.485
799 0945e-4 |
0.000
000 0024e-4 |
u |
|
|
Electron
mass energy equivalent |
8.187
1047e-14 |
0.000
0014e-14 |
J |
|
|
Electron
mass energy equivalent (MeV) |
0.510
998 918 |
0.000
000 044 |
MeV |
|
|
Electron-muon
mass ratio |
4.836
331 67e-3 |
0.000
000 13e-3 |
|
|
Electron-tau
mass ratio |
2.875
64e-4 |
0.000
47e-4 |
|
|
|
Electron-proton
mass ratio |
5.446
170 2173e-4 |
0.000
000 0025e-4 |
|
|
Electron-neutron
mass ratio |
5.438
673 4481e-4 |
0.000
000 0038e-4 |
|
|
Electron-deuteron
mass ratio |
2.724
437 1095e-4 |
0.000
000 0013e-4 |
|
|
|
Electron
to alpha particle mass ratio |
1.370
933 555 75e-4 |
0.000
000 000 61e-4 |
|
|
|
Electron
charge to mass quotient |
-1.758
820 12e11 |
0.000
000 15e11 |
C
kg-1 |
|
Electron
molar mass |
5.485
799 0945e-7 |
0.000
000 0024e-7 |
kg
mol-1 |
|
Compton
wavelength |
2.426
310 238e-12 |
0.000
000 016e-12 |
m |
|
|
Compton
wavelength over 2 pi |
386.159
2678e-15 |
0.000
0026e-15 |
m |
|
Classical
electron radius |
2.817
940 325e-15 |
0.000
000 028e-15 |
m |
|
Thomson
cross section |
0.665
245 873e-28 |
0.000
000 013e-28 |
m2 |
|
|
Electron
magn. moment |
-928.476
412e-26 |
0.000
080e-26 |
J
T-1 |
|
|
Electron
magn. moment to Bohr magneton ratio |
-1.001
159 652 1859 |
0.000
000 000 0038 |
|
|
|
Electron
magn. moment to nuclear magneton ratio |
-1838.281
971 07 |
0.000
000 85 |
|
|
|
Electron
magn. moment anomaly |
1.159
652 1859e-3 |
0.000
000 0038e-3 |
|
|
Electron
g factor |
-2.002
319 304 3718 |
0.000
000 000 0075 |
|
|
|
Electron-muon
magn. moment ratio |
206.766
9894 |
0.000
0054 |
|
|
|
Electron-proton
magn. moment ratio |
-658.210
6862 |
0.000
0066 |
|
|
|
Electron
to shielded proton magn. moment ratio |
-658.227
5956 |
0.000
0071 |
|
|
|
Electron-neutron
magn. moment ratio |
960.920
50 |
0.000
23 |
|
|
Electron-deuteron
magn. moment ratio |
-2143.923
493 |
0.000
023 |
|
|
|
Electron
to shielded helion magn. moment ratio |
864.058
255 |
0.000
010 |
|
|
|
Electron
gyromagn. ratio |
1.760
859 74e11 |
0.000
000 15e11 |
s-1
T-1 |
|
|
Electron
gyromagn. ratio over 2 pi |
28
024.9532 |
0.0024 |
MHz
T-1 |
|
|
Muon
Mass |
1.883
531 40e-28 |
0.000
000 33e-28 |
kg |
|
|
Muon
Mass (u) |
0.113
428 9264 |
0.000
000 0030 |
u |
|
|
Muon
Mass energy equivalent |
1.692
833 60e-11 |
0.000
000 29e-11 |
J |
|
|
Muon
Mass energy equivalent (MeV) |
105.658
3692 |
0.000
0094 |
MeV |
|
|
Muon-Electron
mass ratio |
206.768
2838 |
0.000
0054 |
|
|
|
Muon-Tau
mass ratio |
5.945
92e-2 |
0.000
97e-2 |
|
|
|
Muon-Proton
mass ratio |
0.112
609 5269 |
0.000
000 0029 |
|
|
|
Muon-Neutron
mass ratio |
0.112
454 5175 |
0.000
000 0029 |
|
|
Muon
Molar mass |
0.113
428 9264e-3 |
0.000
000 0030e-3 |
kg
mol-1 |
|
|
Muon
Compton wavelength |
11.734
441 05e-15 |
0.000
000 30e-15 |
m |
|
|
Muon
Compton wavelength over 2 pi |
1.867
594 298e-15 |
0.000
000 047e-15 |
m |
|
|
Muon
Magn. moment |
-4.490
447 99e-26 |
0.000
000 40e-26 |
J
T-1 |
|
|
Muon
Magn. moment to Bohr magneton ratio |
-4.841
970 45e-3 |
0.000
000 13e-3 |
|
|
|
Muon
Magn. moment to nuclear magneton ratio |
-8.890
596 98 |
0.000
000 23 |
|
|
|
Muon
Magn. moment anomaly |
1.165
919 81e-3 |
0.000
000 62e-3 |
|
|
|
Muon
G factor |
-2.002
331 8396 |
0.000
000 0012 |
|
|
|
Muon-Proton
magn. moment ratio |
-3.183
345 118 |
0.000
000 089 |
|
|
|
Tau
Mass |
3.167
77e-27 |
0.000
52e-27 |
kg |
|
|
Tau
Mass (u) |
1.907
68 |
0.000
31 |
u |
|
|
Tau
Mass energy equivalent |
2.847
05e-10 |
0.000
46e-10 |
J |
|
|
Tau
Mass energy equivalent (MeV) |
1776.99 |
0.29 |
MeV |
|
|
Tau-Electron
mass ratio |
3477.48 |
0.57 |
|
|
|
Tau-Muon
mass ratio |
16.8183 |
0.0027 |
|
|
|
Tau-Proton
mass ratio |
1.893
90 |
0.000
31 |
|
|
Tau-Neutron
mass ratio |
1.891
29 |
0.000
31 |
|
|
|
Tau
Molar mass |
1.907
68e-3 |
0.000
31e-3 |
kg
mol-1 |
|
|
Tau
Compton wavelength |
0.697
72e-15 |
0.000
11e-15 |
m |
|
|
Tau
Compton wavelength over 2 pi |
0.111
046e-15 |
0.000
018e-15 |
m |
|
|
Proton
mass |
1.672
621 71e-27 |
0.000
000 29e-27 |
kg |
|
|
Proton
mass (u) |
1.007
276 466 88 |
0.000
000 000 13 |
u |
|
|
Proton
mass energy equivalent |
1.503
277 43e-10 |
0.000
000 26e-10 |
J |
|
|
Proton
mass energy equivalent (MeV) |
938.272
029 |
0.000
080 |
MeV |
|
|
Proton-electron
mass ratio |
1836.152
672 61 |
0.000
000 85 |
|
|
|
Proton-muon
mass ratio |
8.880
243 33 |
0.000
000 23 |
|
|
|
Proton-tau
mass ratio |
0.528
012 |
0.000
086 |
|
|
|
Proton-neutron
mass ratio |
0.998
623 478 72 |
0.000
000 000 58 |
|
|
|
Proton
charge to mass quotient |
9.578
833 76e7 |
0.000
000 82e7 |
C
kg-1 |
|
|
Proton
molar mass |
1.007
276 466 88e-3 |
0.000
000 000 13e-3 |
kg
mol-1 |
|
Proton
Compton wavelength |
1.321
409 8555e-15 |
0.000
000 0088e-15 |
m |
|
|
Proton
Compton wavelength over 2 pi |
0.210
308 9104e-15 |
0.000
000 0014e-15 |
m |
|
|
Proton
magn. moment |
1.410
606 71e-26 |
0.000
000 12e-26 |
J
T-1 |
|
|
Proton
magn. moment to Bohr magneton ratio |
1.521
032 206e-3 |
0.000
000 015e-3 |
|
|
|
Proton
magn. moment to nuclear magneton ratio |
2.792
847 351 |
0.000
000 028 |
|
|
|
Proton
g factor |
5.585
694 701 |
0.000
000 056 |
|
|
|
Proton-neutron
magn. moment ratio |
-1.459
898 05 |
0.000
000 34 |
|
|
|
Shielded
proton magn. moment |
1.410
570 47e-26 |
0.000
000 12e-26 |
J
T-1 |
|
|
Shielded
proton magn. moment to Bohr magneton ratio |
1.520
993 132e-3 |
0.000
000 016e-3 |
|
|
|
Shielded
proton magn. moment to nuclear magneton ratio |
2.792
775 604 |
0.000
000 030 |
|
|
|
Proton
magn. shielding correction |
25.689e-6 |
0.015e-6 |
|
|
|
Proton
gyromagn. ratio |
2.675
222 05e8 |
0.000
000 23e8 |
s-1
T-1 |
|
|
Proton
gyromagn. ratio over 2 pi |
42.577
4813 |
0.000
0037 |
MHz
T-1 |
|
|
Shielded
proton gyromagn. ratio |
2.675
153 33e8 |
0.000
000 23e8 |
s-1
T-1 |
|
|
Shielded
proton gyromagn. ratio over 2 pi |
42.576
3875 |
0.000
0037 |
MHz
T-1 |
|
|
Proton
rms charge radius |
0.8750e-15 |
0.0068e-15 |
m |
|
|
Neutron
mass |
1.674
927 28e-27 |
0.000
000 29e-27 |
kg |
|
|
Neutron
mass (u) |
1.008
664 915 60 |
0.000
000 000 55 |
u |
|
|
Neutron
mass energy equivalent |
1.505
349 57e-10 |
0.000
000 26e-10 |
J |
|
|
Neutron
mass energy equivalent (MeV) |
939.565
360 |
0.000
081 |
MeV |
|
|
Neutron-electron
mass ratio |
1838.683
6598 |
0.000
0013 |
|
|
|
Neutron-muon
mass ratio |
8.892
484 02 |
0.000
000 23 |
|
|
Neutron-tau
mass ratio |
0.528
740 |
0.000
086 |
|
|
|
Neutron-proton
mass ratio |
1.001
378 418 70 |
0.000
000 000 58 |
|
|
|
Neutron
molar mass |
1.008
664 915 60e-3 |
0.000
000 000 55e-3 |
kg
mol-1 |
|
|
Neutron
Compton wavelength |
1.319
590 9067e-15 |
0.000
000 0088e-15 |
m |
|
|
Neutron
Compton wavelength over 2 pi |
0.210
019 4157e-15 |
0.000
000 0014e-15 |
m |
|
|
Neutron
magn. moment |
-0.966
236 45e-26 |
0.000
000 24e-26 |
J
T-1 |
|
|
Neutron
magn. moment to Bohr magneton ratio |
-1.041
875 63e-3 |
0.000
000 25e-3 |
|
|
|
Neutron
magn. moment to nuclear magneton ratio |
-1.913
042 73 |
0.000
000 45 |
|
|
|
Neutron
g factor |
-3.826
085 46 |
0.000
000 90 |
|
|
|
Neutron-electron
magn. moment ratio |
1.040
668 82e-3 |
0.000
000 25e-3 |
|
|
|
Neutron-proton
magn. moment ratio |
-0.684
979 34 |
0.000
000 16 |
|
|
|
Neutron
to shielded proton magn. moment ratio |
-0.684
996 94 |
0.000
000 16 |
|
|
|
Neutron
gyromagn. ratio |
1.832
471 83e8 |
0.000
000 46e8 |
s-1
T-1 |
|
|
Neutron
gyromagn. ratio over 2 pi |
29.164
6950 |
0.000
0073 |
MHz
T-1 |
|
|
Deuteron
mass |
3.343
583 35e-27 |
0.000
000 57e-27 |
kg |
|
|
Deuteron
mass (u) |
2.013
553 212 70 |
0.000
000 000 35 |
u |
|
|
Deuteron
mass energy equivalent |
3.005
062 85e-10 |
0.000
000 51e-10 |
J |
|
|
Deuteron
mass energy equivalent (MeV) |
1875.612
82 |
0.000
16 |
MeV |
|
|
Deuteron-electron
mass ratio |
3670.482
9652 |
0.000
0018 |
|
|
|
Deuteron-proton
mass ratio |
1.999
007 500 82 |
0.000
000 000 41 |
|
|
|
Deuteron
molar mass |
2.013
553 212 70e-3 |
0.000
000 000 35e-3 |
kg
mol-1 |
|
Deuteron
magn. moment |
0.433
073 482e-26 |
0.000
000 038e-26 |
J
T-1 |
|
|
Deuteron
magn. moment to Bohr magneton ratio |
0.466
975 4567e-3 |
0.000
000 0050e-3 |
|
|
|
Deuteron
magn. moment to nuclear magneton ratio |
0.857
438 2329 |
0.000
000 0092 |
|
|
|
Deuteron-electron
magn. moment ratio |
-4.664
345 548e-4 |
0.000
000 050e-4 |
|
|
|
Deuteron-proton
magn. moment ratio |
0.307
012 2084 |
0.000
000 0045 |
|
|
|
Deuteron-neutron
magn. moment ratio |
-0.448
206 52 |
0.000
000 11 |
|
|
|
Deuteron
rms charge radius |
2.1394e-15 |
0.0028e-15 |
m |
|
|
Helion
mass |
5.006
412 14e-27 |
0.000
000 86e-27 |
kg |
|
|
Helion
mass (u) |
3.014
932 2434 |
0.000
000 0058 |
u |
|
|
Helion
mass energy equivalent |
4.499
538 84e-10 |
0.000
000 77e-10 |
J |
|
|
Helion
mass energy equivalent in MeV |
2808.391
42 |
0.000
24 |
MeV |
|
|
Helion-electron
mass ratio |
5495.885
269 |
0.000
011 |
|
|
|
Helion-proton
mass ratio |
2.993
152 6671 |
0.000
000 0058 |
|
|
|
Helion
molar mass |
3.014
932 2434e-3 |
0.000
000 0058e-3 |
kg
mol-1 |
|
|
Shielded
helion magn. moment |
-1.074
553 024e-26 |
0.000
000 093e-26 |
J
T-1 |
|
|
Shielded
helion magn. moment to Bohr magneton ratio |
-1.158
671 474e-3 |
0.000
000 014e-3 |
|
|
|
Shielded
helion magn. moment to nuclear magneton ratio |
-2.127
497 723 |
0.000
000 025 |
|
|
|
Shielded
helion to proton magn. moment ratio |
-0.761
766 562 |
0.000
000 012 |
|
|
|
Shielded
helion to shielded proton magn. moment ratio |
-0.761
786 1313 |
0.000
000 0033 |
|
|
|
Shielded
helion gyromagn. ratio |
2.037
894 70e8 |
0.000
000 18e8 |
s-1
T-1 |
|
|
Shielded
helion gyromagn. ratio over 2 pi |
32.434
1015 |
0.000
0028 |
MHz
T-1 |
|
|
Alpha
particle mass |
6.644
6565e-27 |
0.000
0011e-27 |
kg |
|
|
Alpha particle mass (u) |
4.001
506 179 149 |
0.000
000 000 056 |
u |
|
|
Alpha
particle mass energy equivalent |
5.971
9194e-10 |
0.000
0010e-10 |
J |
|
|
Alpha particle mass energy
equivalent(MeV) |
3727.379
17 |
0.000
32 |
MeV |
|
|
Alpha
particle-electron mass ratio |
7294.299
5363 |
0.000
0032 |
|
|
|
Alpha
particle-proton mass ratio |
3.972
599 689 07 |
0.000
000 000 52 |
|
|
|
Alpha
particle molar mass |
4.001
506 179 149e-3 |
0.000
000 000 056e-3 |
kg
mol-1 |
|
|
Avogadro
constant |
6.022
1415e23 |
0.000
0010e23 |
mol-1 |
|
|
Atomic
mass constant |
1.660
538 86e-27 |
0.000
000 28e-27 |
kg |
|
|
Atomic
mass constant energy equivalent |
1.492
417 90e-10 |
0.000
000 26e-10 |
J |
|
|
Atomic
mass constant energy equivalent in MeV |
931.494
043 |
0.000
080 |
MeV |
|
|
Faraday
constant |
96
485.3383 |
0.0083 |
C
mol-1 |
|
|
Faraday
constant for conventional electric current |
96
485.336 |
0.016 |
C_90
mol-1 |
|
|
Molar
Planck constant |
3.990
312 716e-10 |
0.000
000 027e-10 |
J
s mol-1 |
|
|
Molar
Planck constant times c |
0.119
626 565 72 |
0.000
000 000 80 |
J
m mol-1 |
|
|
Molar
gas constant |
8.314
472 |
0.000
015 |
J
mol-1 K-1 |
|
|
Boltzmann
constant |
1.380
6505e-23 |
0.000
0024e-23 |
J
K-1 |
|
|
Boltzmann constant (eV/K) |
8.617
343e-5 |
0.000
015e-5 |
eV
K-1 |
|
|
Boltzmann constant (Hz/K) |
2.083
6644e10 |
0.000
0036e10 |
Hz
K-1 |
|
|
Boltzmann
constant (inverse meters per kelvin) |
69.503
56 |
0.000
12 |
m-1
K-1 |
|
|
Molar
volume of ideal gas (273.15 K, 101.325 kPa) |
22.413
996e-3 |
0.000
039e-3 |
m3
mol-1 |
|
|
Loschmidt
constant (273.15 K, 101.325 kPa) |
2.686
7773e25 |
0.000
0047e25 |
m-3 |
|
|
Molar
volume of ideal gas (273.15 K, 100 kPa) |
22.710
981e-3 |
0.000
040e-3 |
m3
mol-1 |
|
|
Sackur-Tetrode
constant (1 K, 100 kPa) |
-1.151
7047 |
0.000
0044 |
|
|
|
Sackur-Tetrode
constant (1 K, 101.325 kPa) |
-1.164
8677 |
0.000
0044 |
|
|
|
Stefan-Boltzmann
constant |
5.670
400e-8 |
0.000
040e-8 |
W
m-2 K-4 |
|
|
First
radiation constant |
3.741
771 38e-16 |
0.000
000 64e-16 |
W
m2 |
|
|
First
radiation constant for spectral radiance |
1.191
042 82e-16 |
0.000
000 20e-16 |
W
m2 sr-1 |
|
|
Second
radiation constant |
1.438
7752e-2 |
0.000
0025e-2 |
m
K |
|
|
Wien
Displacement law constant |
2.897
7685e-3 |
0.000
0051e-3 |
m
K |
|
|
Molar
mass of carbon-12 |
12e-3 |
(exact) |
kg
mol-1 |
|
|
Molar
mass constant |
1e-3 |
(exact) |
kg
mol-1 |
|
|
Conventional
value of Josephson constant |
483
597.9e9 |
(exact) |
Hz
V-1 |
|
|
Conventional
value of von Klitzing constant |
25
812.807 |
(exact) |
ohm |
|
|
Standard
atmosphere |
101
325 |
(exact) |
Pa |
|
|
Standard
acceleration of gravity |
9.806
65 |
(exact) |
m
s-2 |
|
|
Cu
X Unit |
1.002
077 10e-13 |
0.000
000 29e-13 |
m |
|
|
Mo
X Unit |
1.002
099 66e-13 |
0.000
000 53e-13 |
m |
|
|
Angstrom
star |
1.000
015 09e-10 |
0.000
000 90e-10 |
m |
|
|
Lattice
parameter of silicon |
543.102
122e-12 |
0.000
020e-12 |
m |
|
|
{220}
lattice spacing of silicon |
192.015
5965e-12 |
0.000
0070e-12 |
m |
|
|
Molar
volume of silicon |
12.058
8382e-6 |
0.000
0024e-6 |
m3
mol-1 |
|
|
Electron
volt |
1.602
176 53e-19 |
0.000
000 14e-19 |
J |
|
|
Unified
atomic mass unit |
1.660
538 86e-27 |
0.000
000 28e-27 |
kg |
|
|
Natural
unit of velocity |
299
792 458 |
(exact) |
m
s-1 |
|
|
Natural
unit of action |
1.054
571 68e-34 |
0.000
000 18e-34 |
J
s |
|
|
Natural unit of action
(eV s) |
6.582
119 15e-16 |
0.000
000 56e-16 |
eV
s |
|
|
Natural
unit of mass |
9.109
3826e-31 |
0.000
0016e-31 |
kg |
|
|
Natural
unit of energy |
8.187
1047e-14 |
0.000
0014e-14 |
J |
|
|
Natural unit of energy
(MeV) |
0.510
998 918 |
0.000
000 044 |
MeV |
|
|
Natural
unit of momentum |
2.730
924 19e-22 |
0.000
000 47e-22 |
kg
m s-1 |
|
|
Natural
unit of momentum (MeV/c) |
0.510
998 918 |
0.000
000 044 |
MeV/c |
|
|
Natural
unit of length |
386.159
2678e-15 |
0.000
0026e-15 |
m |
|
|
Natural
unit of time |
1.288
088 6677e-21 |
0.000
000 0086e-21 |
s |
|
|
Atomic
unit of charge |
1.602
176 53e-19 |
0.000
000 14e-19 |
C |
|
|
Atomic
unit of mass |
9.109
3826e-31 |
0.000
0016e-31 |
kg |
|
|
Atomic
unit of action |
1.054
571 68e-34 |
0.000
000 18e-34 |
J
s |
|
|
Atomic
unit of length |
0.529
177 2108e-10 |
0.000
000 0018e-10 |
m |
|
|
Atomic
unit of energy |
4.359
744 17e-18 |
0.000
000 75e-18 |
J |
|
|
Atomic
unit of time |
2.418
884 326 505e-17 |
0.000
000 000 016e-17 |
s |
|
|
Atomic
unit of force |
8.238
7225e-8 |
0.000
0014e-8 |
N |
|
|
Atomic
unit of velocity |
2.187
691 2633e6 |
0.000
000 0073e6 |
m
s-1 |
|
|
Atomic
unit of momentum |
1.992
851 66e-24 |
0.000
000 34e-24 |
kg
m s-1 |
|
|
Atomic
unit of current |
6.623
617 82e-3 |
0.000
000 57e-3 |
A |
|
|
Atomic
unit of charge density |
1.081
202 317e12 |
0.000
000 093e12 |
C
m-3 |
|
|
Atomic
unit of electric potential |
27.211
3845 |
0.000
0023 |
V |
|
|
Atomic
unit of electric field |
5.142
206 42e11 |
0.000
000 44e11 |
V
m-1 |
|
|
Atomic
unit of electric field gradient |
9.717
361 82e21 |
0.000
000 83e21 |
V
m-2 |
|
|
Atomic
unit of electric dipole moment |
8.478
353 09e-30 |
0.000
000 73e-30 |
C
m |
|
|
Atomic
unit of electric quadrupole moment |
4.486
551 24e-40 |
0.000
000 39e-40 |
C
m2 |
|
|
Atomic
unit of electric polarizablity |
1.648
777 274e-41 |
0.000
000 016e-41 |
C2
m2 J-1 |
|
|
Atomic
unit of 1st hyperpolarizablity |
3.206
361 51e-53 |
0.000
000 28e-53 |
C3
m3 J-2 |
|
|
Atomic
unit of 2nd hyperpolarizablity |
6.235
3808e-65 |
0.000
0011e-65 |
C4
m4 J-3 |
|
|
Atomic
unit of magn. flux density |
2.350
517 42e5 |
0.000
000 20e5 |
T |
|
|
Atomic
unit of magn. dipole moment |
1.854
801 90e-23 |
0.000
000 16e-23 |
J
T-1 |
|
|
Atomic
unit of magnetizability |
7.891
036 60e-29 |
0.000
000 13e-29 |
J
T-2 |
|
|
Atomic
unit of permittivity |
1.112
650 056...e-10 |
(exact) |
F
m-1 |
|
Joule-kilogram
relationship |
1.112
650 056...e-17 |
(exact) |
kg |
|
|
Joule-inverse
meter relationship |
5.034
117 20e24 |
0.000
000 86e24 |
m-1 |
|
|
Joule-hertz
relationship |
1.509
190 37e33 |
0.000
000 26e33 |
Hz |
|
|
Joule-kelvin
relationship |
7.242
963e22 |
0.000
013e22 |
K |
|
|
Joule-electron
volt relationship |
6.241
509 47e18 |
0.000
000 53e18 |
eV |
|
|
Joule-atomic
mass unit relationship |
6.700
5361e9 |
0.000
0011e9 |
u |
|
|
Joule-hartree
relationship |
2.293
712 57e17 |
0.000
000 39e17 |
E_h |
|
|
Kilogram-joule
relationship |
8.987
551 787...e16 |
(exact) |
J |
|
|
Kilogram-inverse
meter relationship |
4.524
438 91e41 |
0.000
000 77e41 |
m-1 |
|
|
Kilogram-hertz
relationship |
1.356
392 66e50 |
0.000
000 23e50 |
Hz |
|
|
Kilogram-kelvin
relationship |
6.509
650e39 |
0.000
011e39 |
K |
|
|
Kilogram-electron
volt relationship |
5.609
588 96e35 |
0.000
000 48e35 |
eV |
|
|
Kilogram-atomic
mass unit relationship |
6.022
1415e26 |
0.000
0010e26 |
u |
|
|
Kilogram-hartree
relationship |
2.061
486 05e34 |
0.000
000 35e34 |
E_h |
|
|
Inverse
meter-joule relationship |
1.986
445 61e-25 |
0.000
000 34e-25 |
J |
|
|
Inverse
meter-kilogram relationship |
2.210
218 81e-42 |
0.000
000 38e-42 |
kg |
|
Inverse
meter-hertz relationship |
299
792 458 |
(exact) |
Hz |
|
|
Inverse
meter-kelvin relationship |
1.438
7752e-2 |
0.000
0025e-2 |
K |
|
|
Inverse
meter-electron volt relationship |
1.239
841 91e-6 |
0.000
000 11e-6 |
eV |
|
|
Inverse
meter-atomic mass unit relationship |
1.331
025 0506e-15 |
0.000
000 0089e-15 |
u |
|
|
Inverse
meter-hartree relationship |
4.556
335 252 760e-8 |
0.000
000 000 030e-8 |
E_h |
|
|
Hertz-joule
relationship |
6.626
0693e-34 |
0.000
0011e-34 |
J |
|
|
Hertz-kilogram
relationship |
7.372
4964e-51 |
0.000
0013e-51 |
kg |
|
|
Hertz-inverse
meter relationship |
3.335
640 951...e-9 |
(exact) |
m-1 |
|
|
Hertz-kelvin
relationship |
4.799
2374e-11 |
0.000
0084e-11 |
K |
|
|
Hertz-electron
volt relationship |
4.135
667 43e-15 |
0.000
000 35e-15 |
eV |
|
|
Hertz-atomic
mass unit relationship |
4.439
821 667e-24 |
0.000
000 030e-24 |
u |
|
|
Hertz-hartree
relationship |
1.519
829 846 006e-16 |
0.000
000 000 010e-16 |
E_h |
|
|
Kelvin-joule
relationship |
1.380
6505e-23 |
0.000
0024e-23 |
J |
|
|
Kelvin-kilogram
relationship |
1.536
1808e-40 |
0.000
0027e-40 |
kg |
|
|
Kelvin-inverse
meter relationship |
69.503
56 |
0.000
12 |
m-1 |
|
|
Kelvin-hertz
relationship |
2.083
6644e10 |
0.000
0036e10 |
Hz |
|
|
Kelvin-electron
volt relationship |
8.617
343e-5 |
0.000
015e-5 |
eV |
|
|
Kelvin-atomic
mass unit relationship |
9.251
098e-14 |
0.000
016e-14 |
u |
|
|
Kelvin-hartree
relationship |
3.166
8153e-6 |
0.000
0055e-6 |
E_h |
|
|
Electron
volt-joule relationship |
1.602
176 53e-19 |
0.000
000 14e-19 |
J |
|
|
Electron
volt-kilogram relationship |
1.782
661 81e-36 |
0.000
000 15e-36 |
kg |
|
|
Electron
volt-inverse meter relationship |
8.065
544 45e5 |
0.000
000 69e5 |
m-1 |
|
|
Electron
volt-hertz relationship |
2.417
989 40e14 |
0.000
000 21e14 |
Hz |
|
|
Electron
volt-kelvin relationship |
1.160
4505e4 |
0.000
0020e4 |
K |
|
|
Electron
volt-atomic mass unit relationship |
1.073
544 171e-9 |
0.000
000 092e-9 |
u |
|
|
Electron
volt-hartree relationship |
3.674
932 45e-2 |
0.000
000 31e-2 |
E_h |
|
|
Atomic
mass unit-joule relationship |
1.492
417 90e-10 |
0.000
000 26e-10 |
J |
|
|
Atomic
mass unit-kilogram relationship |
1.660
538 86e-27 |
0.000
000 28e-27 |
kg |
|
|
Atomic
mass unit-inverse meter relationship |
7.513
006 608e14 |
0.000
000 050e14 |
m-1 |
|
Atomic
mass unit-hertz relationship |
2.252
342 718e23 |
0.000
000 015e23 |
Hz |
|
|
Atomic
mass unit-kelvin relationship |
1.080
9527e13 |
0.000
0019e13 |
K |
|
|
Atomic
mass unit-electron volt relationship |
931.494
043e6 |
0.000
080e6 |
eV |
|
|
Atomic
mass unit-hartree relationship |
3.423
177 686e7 |
0.000
000 023e7 |
E_h |
|
|
Hartree-joule
relationship |
4.359
744 17e-18 |
0.000
000 75e-18 |
J |
|
|
Hartree-kilogram
relationship |
4.850
869 60e-35 |
0.000
000 83e-35 |
kg |
|
|
Hartree-inverse
meter relationship |
2.194
746 313 705e7 |
0.000
000 000 015e7 |
m-1 |
|
|
Hartree-hertz
relationship |
6.579
683 920 721e15 |
0.000
000 000 044e15 |
Hz |
|
|
Hartree-kelvin
relationship |
3.157
7465e5 |
0.000
0055e5 |
K |
|
|
Hartree-electron
volt relationship |
27.211
3845 |
0.000
0023 |
eV |
|
|
Hartree-atomic
mass unit relationship |
2.921
262 323e-8 |
0.000
000 019e-8 |
u |
|
|
