valon nopeus tyhjiössä | c |
= 299 792 458 m / s |
gravitaatiovakio | G |
= 6.673×10-11
m3/kg s2 |
| |
= 4 pi2
AU3 / mAurinko a2 |
| |
= 3986005×108
m3 / mMaa s2 |
Planckin vakio | h |
= 6.6261×10-34 Js |
| h-viiva |
= h /2 pi = 1.0546×10-34 Js |
Boltzmannin vakio | k |
= 1.3807×10-23 J / K |
säteilytiheysvakio | a |
= 7.5659×10-16
J / m3 K4 |
Stefanin-Boltzmannin vakio | sigma |
= ac /4 = 5.6705×10-8
W / m2 K4 |
atomimassayksikkö | amu |
= 1.6605×10-27 kg |
elektronin varaus | e |
= 1.6022×10-19 C |
elektronin lepomassa | me |
= 9.1094×10-31 kg = 0.511 MeV |
protonin lepomassa | mp |
= 1.6726×10-27 kg = 938.3 MeV |
neutronin lepomassa | mn |
= 1.6749×10-27 kg = 939.64 MeV |
vetyatomin lepomassa | mH |
= 1.6735×10-27 kg = 1.0078 amu |
heliumatomin lepomassa | mHe |
= 6.6465×10-27 kg = 4.0026 amu |
Rydbergin vakio vedylle | RH |
= 1.0968×107 / m |
kaasuvakio | R |
= 8.3145 J / K mol |