adapted from MIT 3.091 by Thorlase
| # | Constant | Symbol | Value | Units |
| 1 | Speed of light in vacuum | (c) | 299792458 | m s-1 |
| 2 | Permeability of vacuum | (μ_0) | 1.25663706143592e-06 | N A-2 |
| 3 | Permittivity of vacuum | (ε_0) | 8.854187817e-12 | F m-1 |
| 4 | Newtonian constant of gravitation | (G) | 6.6743e-11 | m3 kg-1 s-2 |
| 5 | Planck constant | (h) | 6.62607554e-34 | J s |
| 6 | Planck constant in eV | 4.135669212e-15 | eV s | |
| 7 | h-bar | (h-bar) | 1.0545726663e-34 | J s |
| 8 | h-bar in eV | 6.58212202e-16 | eV s | |
| 9 | Planck mass | (m_p) | 2.1767114e-08 | kg |
| 10 | Planck length | (l_p) | 1.616051e-35 | m |
| 11 | Planck time | (t_p) | 5.3905634e-44 | s |
| 12 | Elementary charge | (e) | 1.6021773349e-19 | C |
| 13 | Magnetic flux quantum | (Φ_0) | 2.0678346161e-15 | Wb |
| 14 | Josephson frequency-voltage quotient | 483597671400000 | V-1 s-1 | |
| 15 | Quantized Hall conductance | 3.8740461417e-05 | Ω-1 | |
| 16 | Quantized Hall resistance | (R_H) | 25812.805612 | Ω |
| 17 | Bohr magneton | (μ_B) | 9.274015431e-24 | J T-1 |
| 18 | Bohr magneton in eV | 5.7883826352e-05 | eV T-1 | |
| 19 | Bohr magneton in Hz | 13996241842 | T-1 s-1 | |
| 20 | Bohr magneton in wavenumbers | 46.68643714 | m-1 T-1 | |
| 21 | Bohr magneton in kelvins | 0.671709957 | K T-1 | |
| 22 | Nuclear magneton | (μ_N) | 5.050786617e-27 | J T-1 |
| 23 | Nuclear magneton in eV | 3.1524516628e-08 | eV T-1 | |
| 24 | Nuclear magneton in Hz | 7622591.423 | T-1 s-1 | |
| 25 | Nuclear magneton in wavenumbers | 0.025426228177 | m-1 T-1 | |
| 26 | Nuclear magneton in kelvins | 0.000365824631 | K T-1 | |
| 27 | Fine structure constant | (α) | 0.0072973530833 | |
| 28 | Inverse fine structure constant | 137.035989561 | ||
| 29 | Rydberg constant | (Ry) | 10973731.53413 | m-1 |
| 30 | Rydberg constant in Hz | 3.289841949939e+15 | s-1 | |
| 31 | Rydberg constant in joules | 2.179874113e-18 | J | |
| 32 | Rydberg constant in eV | 13.60569814 | eV | |
| 33 | Bohr radius | (a_0) | 5.2917724924e-11 | m |
| 34 | Hartree energy | (E_h) | 4.359748226e-18 | J |
| 35 | Hartree energy in eV | 27.211396181 | eV | |
| 36 | Quantum of circulation | 0.00036369480733 | m2 s-1 | |
| 37 | Electron mass | (m_e) | 9.109389754e-31 | kg |
| 38 | Electron mass in u | 0.00054857990313 | u | |
| 39 | Electron mass in eV | 510999.0615 | eV | |
| 40 | Electron-myon mass ratio | 0.0048363321871 | ||
| 41 | Electron-proton mass ratio | 0.00054461701311 | ||
| 42 | Electron-deuteron mass ratio | 0.0002724437076 | ||
| 43 | Electron-α-particle mass ratio | 0.0001370933543 | ||
| 44 | Electron specific charge | -175881962530 | C kg-1 | |
| 45 | Electron molar mass | 5.4857990313e-07 | kg mol-1 | |
| 46 | Electron Compton wavelength | (λ_C) | 2.4263105822e-12 | m |
| 47 | Electron Compton wavelength over 2 pi | (λ-bar_C) | 3.8615932335e-13 | m |
| 48 | Electron classical radius | (r_e) | 2.8179409238e-15 | m |
| 49 | Electron Thomson cross section | (σ_e) | 6.652461618e-29 | m2 |
| 50 | Electron magnetic moment | 9.284770131e-24 | J T-1 | |
| 51 | Electron magnetic moment in Bohr magnetons | 1.0011596521931 | ||
| 52 | Electron magnetic moment in nuclear magnetons | 1838.28200037 | ||
| 53 | Electron magnetic moment anomaly | (a-e) | 0.0011596521931 | |
| 54 | Electron g-factor | (g_e) | 2.0023193043862 | |
| 55 | Electron-myon magnetic moment ratio | 206.7669673 | ||
| 56 | Electron-proton magnetic moment ratio | 658.210688166 | ||
| 57 | myon mass | 1.883532711e-28 | kg | |
| 58 | myon mass in u | 0.11342891317 | u | |
| 59 | myon mass in eV | 105658389.34 | eV | |
| 60 | myon-electron mass ratio | 206.7682623 | ||
| 61 | myon molar mass | 0.00011342891317 | kg mol-1 | |
| 62 | myon magnetic moment | 4.490451415e-26 | J T-1 | |
| 63 | myon magnetic moment in Bohr magnetons | 0.0048419709771 | ||
| 64 | myon magnetic moment in nuclear magnetons | 8.890598113 | ||
| 65 | myon magnetic moment anomaly | (a_μ) | 0.001165923084 | |
| 66 | myon g-factor | (g_μ) | 2.00233184617 | |
| 67 | myon-proton magnetic moment ratio | 3.1833454747 | ||
| 68 | Proton mass | (m_p) | 1.67262311e-27 | kg |
| 69 | Proton mass in u | 1.00727647012 | u | |
| 70 | Proton mass in eV | 938272312.8 | eV | |
| 71 | Proton-electron mass ratio | 1836.15270137 | ||
| 72 | Proton-myon mass ratio | 8.880244413 | ||
| 73 | Proton specific charge | 95788309.29 | C kg-1 | |
| 74 | Proton molar mass | 0.00100727647012 | kg mol-1 | |
| 75 | Proton Compton wavelength | (λ_Cp) | 1.3214100212e-15 | m |
| 76 | Proton magnetic moment | 1.4106076147e-26 | J T-1 | |
| 77 | Proton magnetic moment in Bohr magnetons | 0.00152103220215 | ||
| 78 | Proton magnetic moment in nuclear magnetons | 2.79284738663 | ||
| 79 | Diamagnetic shielding correction for protons (H_2 O, spherical sample, 298.15 K) | (σ_H2O) | 2.568915e-05 | |
| 80 | Shielded proton moment (H_2 O, spherical sample, 298.15 K) | (μ_p') | 1.4105713847e-26 | J T-1 |
| 81 | Shielded proton moment in Bohr magnetons | 0.00152099312917 | ||
| 82 | Shielded proton moment in nuclear magnetons | 2.79277564264 | ||
| 83 | Proton gyromagnetic ratio | (γ_p) | 267522128.81 | T-1 s-1 |
| 84 | (γ_p) | 42577469.13 | T-1 s-1 | |
| 85 | Proton gyromagnetic ratio, uncorrected (H_2 O, spherical sample, 298.15 K) | (γ_p') | 267515255.81 | T-1 s-1 |
| 86 | (γ_p'/2pi) | 42576375.13 | T-1 s-1 | |
| 87 | Neutron mass | (m_n) | 1.67492861e-27 | kg |
| 88 | Neutron mass in u | 1.00866490414 | u | |
| 89 | Neutron mass in eV | 939565632.8 | eV | |
| 90 | Neutron-electron mass ratio | 1838.6836624 | ||
| 91 | Neutron-proton mass ratio | 1.0013784049 | ||
| 92 | Neutron molar mass | 0.00100866490414 | kg mol-1 | |
| 93 | Neutron Compton wavelength | (λ_Cn) | 1.3195911012e-15 | m |
| 94 | Neutron magnetic moment | 9.66237074e-27 | J T-1 | |
| 95 | Neutron magnetic moment in Bohr magnetons | 0.0010418756325 | ||
| 96 | Neutron magnetic moment in nuclear magnetons | 1.9130427545 | ||
| 97 | Neutron-electron magnetic moment ratio | 0.0010406688225 | ||
| 98 | Neutron-proton magnetic moment ratio | 0.6849793416 | ||
| 99 | Deuteron mass | (m_d) | 3.34358602e-27 | kg |
| 100 | Deuteron mass in u | 2.01355321424 | u | |
| 101 | Deuteron mass in eV | 1875613395.7 | eV | |
| 102 | Deuteron-electron mass ratio | 3670.48301475 | ||
| 103 | Deuteron-proton mass ratio | 1.9990074966 | ||
| 104 | Deuteron molar mass | 0.00201355321424 | kg mol-1 | |
| 105 | Deuteron magnetic moment | (μ_d) | 4.330737515e-27 | J T-1 |
| 106 | Deuteron magnetic moment in Bohr magnetons | 0.000466975447991 | ||
| 107 | Deuteron magnetic moment in nuclear magnetons | 0.85743823024 | ||
| 108 | Deuteron-electron magnetic moment ratio | 0.000466434546091 | ||
| 109 | Deuteron-proton magnetic moment ratio | 0.307012203551 | ||
| 110 | Avagadro constant | (N_A) | 6.022136736e+23 | mol-1 |
| 111 | Atomic mass constant | (m_u) | 1.66054021e-27 | kg |
| 112 | Atomic mass constant in eV | 931494322.8 | eV | |
| 113 | Faraday constant | (F) | 96485.30929 | C mol-1 |
| 114 | Molar Planck constant | 3.9903132336e-10 | J s mol-1 | |
| 115 | (N_A hc) | 0.1196265811 | J m mol-1 | |
| 116 | Molar gas constant | (R) | 8.3145107 | J mol-1 K-1 |
| 117 | Boltzmann constant | (k) | 1.38065812e-23 | J K-1 |
| 118 | Boltzmann constant in eV | 8.61738573e-05 | eV K-1 | |
| 119 | Boltzmann constant in Hz | 20836741800 | K-1 s-1 | |
| 120 | Boltzmann constant in wavenumbers | 69.5038759 | m-1 K-1 | |
| 121 | Molar volume (ideal gas), STP | (V_m) | 0.0224141019 | m3 mol-1 |
| 122 | Loschmidt constant | (n_0) | 2.68676323e+25 | m-3 |
| 123 | Stefan-Boltzmann constant | (σ) | 5.6705119e-08 | W m-2 K-4 |
| 124 | First radiation constant | (c_1) | 3.741774922e-16 | W m2 |
| 125 | Second radiation constant | (c_2) | 0.0143876912 | m K |
| 126 | Wien displacement law constant | (b) | 0.00289775624 | m K |
| 127 | Electron volt | (eV) | 1.6021773349e-19 | J |
| 128 | Atomic mass unit | (u) | 1.66054021e-27 | kg |
| 129 | Standard atmosphere | (atm) | 101325 | Pa |
| 130 | Standard acceleration of gravity | (g_n) | 9.80665 | m s-2 |
| 131 | BIPM-maintained ohm, Ω_69-B1 as of 1 Jan 85 | (Ω_B185) | 1-1.56350e-6 | Ω |
| 132 | Drift rate of Ω_69-B1 | (dΩ_69-B1/dt) | -0.056615 | μΩ/yr |
| 133 | BIPM-maintained volt 483 694 GHz(h/2e) | (V_76-B1) | 1-7.5930e-6 | V |
| 134 | BIPM maintained ampere A_BIPM | (A_B185) | 1-6.0330e-6 | A |
| 135 | Cu x-unit: | (xu(CuKα1)) | 1.002077897e-13 | m |
| 136 | Mo x-unit: | (xu(MoKα1)) | 1.0020993845e-13 | m |
| 137 | AA *: | (AAngstrom-star) | 1.0000148192e-10 | m |
| 138 | Lattice spacing of Si (in vacuum, 295.65 K) | (a) | 5.431019611e-10 | m |
| 139 | Lattice spacing Si (220) plane | (d_220) | 1.920155404e-10 | m |
| 140 | Molar volume of Si | (V_m(Si)) | 1.2058817989e-05 | m3 mol-1 |