Casio fx-991ES Plus ConstantsDescription & Symbol Casio fx-115es Plus Unit

Mass of the Proton mp 01 1.672621777 10-27 kg

Mass of the Neutron mn 02 1.674927351 10-27 kg

Mass of the Electron me 03 9.10938291 10-31 kg

Mass of the Muon m 04 1.883531475 10-31 kg

Bohr radius a0 05 5.291772109 10-11 m

Planck's constant h 06 6.62606957 10-34 J/Hz

Nuclear magneton N 07 5.05078353 10-27 J/T

Bohr magneton B 08 9.27400968 10-24 J/T

Dirac's constant 09 1.054571726 10-34 J-s/rad

Fine-structureconstant

10 7.29735257 10-3

1/ 2hc0 / e2

Classical electron radius re 11 2.817940327 10-15 M

Compton wavelength c 12 2.426310239 10-12 M

Gyromagnetic ratioof the proton

p 13 267522200.5 rad/s-T

p / 2 2 p / h MHz/T

Compton wl for proton c,p 14 1.321409856 10-15 M

Compton wl for neutron c,n 15 1.319590907 10-15 M

Rydberg's constant R 16 10973731.57 1/m

Hartree energy Eh 2hc R  =  2 me c2 J

Atomic mass unit u 17 1.660538921 10-27 Kg

Proton magnetic moment p 18 1.410606743 10-26 J/T

Electron magn. moment e 19 -9.2847643 10-24 J/T

Neutron magn. moment n 20 -9.6623647 10-27 J/T

Muon magnetic moment 21 -4.49044807 10-26 J/T

Faraday's constant F 22 96485.3365 C/mole

Charge of a proton e 23 1.602176565 10-19 C/electron

Avogadro number NA 24 6.02214129 1023 atom/mole

Boltzmann's constant k 25 1.3806488 10-23 J/mole-K

Molar volume, 0°C, 1 barVm

26 0.022710953m3/mole

Molar volume, 0°C, 1 atm 273.15 R / 101325

Uversal gas constant R 27 8.3144621 J/mole-K

Einstein's constant (c) c0 28 299792458 m/s

1st radiation constant c1 29 3.74177153 10-16 W-m2

2nd radiation constant c2 30 1.438777 10-2 m-K

Stefan's constant 31 5.670373 10-8 W/m2-K4

Electric constant 0 32 8.854187817 10-12 F/m

Coulomb's constant 1 / 40 m/F

Magnetic constant 0 33 1.256637061 10-6 H/m

Ampere's constant 0 / 4 H/m

Quantum of flux 0 34 2.067833758 10-15 Wb

Normal gravity g 35 9.80665 N/kg

Conductance quantum G0 36 7.748091735 10-5 S

Z of vacuum = 0 c Z0 37 376.7303135 Ice point  =  0°C t 38 273.15 K

Newton's constant G 39 6.67384 10-11 N-m2/kg2

Normal Pressure atm 40 101325 Pa