-
Notifications
You must be signed in to change notification settings - Fork 836
/
nist_codata.txt
345 lines (339 loc) · 37 KB
/
nist_codata.txt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
Fundamental Physical Constants --- Complete Listing
From: http://physics.nist.gov/constants
Quantity Value Uncertainty Unit
-----------------------------------------------------------------------------------------------------------------------------
{220} lattice spacing of silicon 192.015 5714 e-12 0.000 0032 e-12 m
alpha particle-electron mass ratio 7294.299 5361 0.000 0029
alpha particle mass 6.644 656 75 e-27 0.000 000 29 e-27 kg
alpha particle mass energy equivalent 5.971 919 67 e-10 0.000 000 26 e-10 J
alpha particle mass energy equivalent in MeV 3727.379 240 0.000 082 MeV
alpha particle mass in u 4.001 506 179 125 0.000 000 000 062 u
alpha particle molar mass 4.001 506 179 125 e-3 0.000 000 000 062 e-3 kg mol^-1
alpha particle-proton mass ratio 3.972 599 689 33 0.000 000 000 36
Angstrom star 1.000 014 95 e-10 0.000 000 90 e-10 m
atomic mass constant 1.660 538 921 e-27 0.000 000 073 e-27 kg
atomic mass constant energy equivalent 1.492 417 954 e-10 0.000 000 066 e-10 J
atomic mass constant energy equivalent in MeV 931.494 061 0.000 021 MeV
atomic mass unit-electron volt relationship 931.494 061 e6 0.000 021 e6 eV
atomic mass unit-hartree relationship 3.423 177 6845 e7 0.000 000 0024 e7 E_h
atomic mass unit-hertz relationship 2.252 342 7168 e23 0.000 000 0016 e23 Hz
atomic mass unit-inverse meter relationship 7.513 006 6042 e14 0.000 000 0053 e14 m^-1
atomic mass unit-joule relationship 1.492 417 954 e-10 0.000 000 066 e-10 J
atomic mass unit-kelvin relationship 1.080 954 08 e13 0.000 000 98 e13 K
atomic mass unit-kilogram relationship 1.660 538 921 e-27 0.000 000 073 e-27 kg
atomic unit of 1st hyperpolarizability 3.206 361 449 e-53 0.000 000 071 e-53 C^3 m^3 J^-2
atomic unit of 2nd hyperpolarizability 6.235 380 54 e-65 0.000 000 28 e-65 C^4 m^4 J^-3
atomic unit of action 1.054 571 726 e-34 0.000 000 047 e-34 J s
atomic unit of charge 1.602 176 565 e-19 0.000 000 035 e-19 C
atomic unit of charge density 1.081 202 338 e12 0.000 000 024 e12 C m^-3
atomic unit of current 6.623 617 95 e-3 0.000 000 15 e-3 A
atomic unit of electric dipole mom. 8.478 353 26 e-30 0.000 000 19 e-30 C m
atomic unit of electric field 5.142 206 52 e11 0.000 000 11 e11 V m^-1
atomic unit of electric field gradient 9.717 362 00 e21 0.000 000 21 e21 V m^-2
atomic unit of electric polarizability 1.648 777 2754 e-41 0.000 000 0016 e-41 C^2 m^2 J^-1
atomic unit of electric potential 27.211 385 05 0.000 000 60 V
atomic unit of electric quadrupole mom. 4.486 551 331 e-40 0.000 000 099 e-40 C m^2
atomic unit of energy 4.359 744 34 e-18 0.000 000 19 e-18 J
atomic unit of force 8.238 722 78 e-8 0.000 000 36 e-8 N
atomic unit of length 0.529 177 210 92 e-10 0.000 000 000 17 e-10 m
atomic unit of mag. dipole mom. 1.854 801 936 e-23 0.000 000 041 e-23 J T^-1
atomic unit of mag. flux density 2.350 517 464 e5 0.000 000 052 e5 T
atomic unit of magnetizability 7.891 036 607 e-29 0.000 000 013 e-29 J T^-2
atomic unit of mass 9.109 382 91 e-31 0.000 000 40 e-31 kg
atomic unit of mom.um 1.992 851 740 e-24 0.000 000 088 e-24 kg m s^-1
atomic unit of permittivity 1.112 650 056... e-10 (exact) F m^-1
atomic unit of time 2.418 884 326 502 e-17 0.000 000 000 012 e-17 s
atomic unit of velocity 2.187 691 263 79 e6 0.000 000 000 71 e6 m s^-1
Avogadro constant 6.022 141 29 e23 0.000 000 27 e23 mol^-1
Bohr magneton 927.400 968 e-26 0.000 020 e-26 J T^-1
Bohr magneton in eV/T 5.788 381 8066 e-5 0.000 000 0038 e-5 eV T^-1
Bohr magneton in Hz/T 13.996 245 55 e9 0.000 000 31 e9 Hz T^-1
Bohr magneton in inverse meters per tesla 46.686 4498 0.000 0010 m^-1 T^-1
Bohr magneton in K/T 0.671 713 88 0.000 000 61 K T^-1
Bohr radius 0.529 177 210 92 e-10 0.000 000 000 17 e-10 m
Boltzmann constant 1.380 6488 e-23 0.000 0013 e-23 J K^-1
Boltzmann constant in eV/K 8.617 3324 e-5 0.000 0078 e-5 eV K^-1
Boltzmann constant in Hz/K 2.083 6618 e10 0.000 0019 e10 Hz K^-1
Boltzmann constant in inverse meters per kelvin 69.503 476 0.000 063 m^-1 K^-1
characteristic impedance of vacuum 376.730 313 461... (exact) ohm
classical electron radius 2.817 940 3267 e-15 0.000 000 0027 e-15 m
Compton wavelength 2.426 310 2389 e-12 0.000 000 0016 e-12 m
Compton wavelength over 2 pi 386.159 268 00 e-15 0.000 000 25 e-15 m
conductance quantum 7.748 091 7346 e-5 0.000 000 0025 e-5 S
conventional value of Josephson constant 483 597.9 e9 (exact) Hz V^-1
conventional value of von Klitzing constant 25 812.807 (exact) ohm
Cu x unit 1.002 076 97 e-13 0.000 000 28 e-13 m
deuteron-electron mag. mom. ratio -4.664 345 537 e-4 0.000 000 039 e-4
deuteron-electron mass ratio 3670.482 9652 0.000 0015
deuteron g factor 0.857 438 2308 0.000 000 0072
deuteron mag. mom. 0.433 073 489 e-26 0.000 000 010 e-26 J T^-1
deuteron mag. mom. to Bohr magneton ratio 0.466 975 4556 e-3 0.000 000 0039 e-3
deuteron mag. mom. to nuclear magneton ratio 0.857 438 2308 0.000 000 0072
deuteron mass 3.343 583 48 e-27 0.000 000 15 e-27 kg
deuteron mass energy equivalent 3.005 062 97 e-10 0.000 000 13 e-10 J
deuteron mass energy equivalent in MeV 1875.612 859 0.000 041 MeV
deuteron mass in u 2.013 553 212 712 0.000 000 000 077 u
deuteron molar mass 2.013 553 212 712 e-3 0.000 000 000 077 e-3 kg mol^-1
deuteron-neutron mag. mom. ratio -0.448 206 52 0.000 000 11
deuteron-proton mag. mom. ratio 0.307 012 2070 0.000 000 0024
deuteron-proton mass ratio 1.999 007 500 97 0.000 000 000 18
deuteron rms charge radius 2.1424 e-15 0.0021 e-15 m
electric constant 8.854 187 817... e-12 (exact) F m^-1
electron charge to mass quotient -1.758 820 088 e11 0.000 000 039 e11 C kg^-1
electron-deuteron mag. mom. ratio -2143.923 498 0.000 018
electron-deuteron mass ratio 2.724 437 1095 e-4 0.000 000 0011 e-4
electron g factor -2.002 319 304 361 53 0.000 000 000 000 53
electron gyromag. ratio 1.760 859 708 e11 0.000 000 039 e11 s^-1 T^-1
electron gyromag. ratio over 2 pi 28 024.952 66 0.000 62 MHz T^-1
electron-helion mass ratio 1.819 543 0761 e-4 0.000 000 0017 e-4
electron mag. mom. -928.476 430 e-26 0.000 021 e-26 J T^-1
electron mag. mom. anomaly 1.159 652 180 76 e-3 0.000 000 000 27 e-3
electron mag. mom. to Bohr magneton ratio -1.001 159 652 180 76 0.000 000 000 000 27
electron mag. mom. to nuclear magneton ratio -1838.281 970 90 0.000 000 75
electron mass 9.109 382 91 e-31 0.000 000 40 e-31 kg
electron mass energy equivalent 8.187 105 06 e-14 0.000 000 36 e-14 J
electron mass energy equivalent in MeV 0.510 998 928 0.000 000 011 MeV
electron mass in u 5.485 799 0946 e-4 0.000 000 0022 e-4 u
electron molar mass 5.485 799 0946 e-7 0.000 000 0022 e-7 kg mol^-1
electron-muon mag. mom. ratio 206.766 9896 0.000 0052
electron-muon mass ratio 4.836 331 66 e-3 0.000 000 12 e-3
electron-neutron mag. mom. ratio 960.920 50 0.000 23
electron-neutron mass ratio 5.438 673 4461 e-4 0.000 000 0032 e-4
electron-proton mag. mom. ratio -658.210 6848 0.000 0054
electron-proton mass ratio 5.446 170 2178 e-4 0.000 000 0022 e-4
electron-tau mass ratio 2.875 92 e-4 0.000 26 e-4
electron to alpha particle mass ratio 1.370 933 555 78 e-4 0.000 000 000 55 e-4
electron to shielded helion mag. mom. ratio 864.058 257 0.000 010
electron to shielded proton mag. mom. ratio -658.227 5971 0.000 0072
electron-triton mass ratio 1.819 200 0653 e-4 0.000 000 0017 e-4
electron volt 1.602 176 565 e-19 0.000 000 035 e-19 J
electron volt-atomic mass unit relationship 1.073 544 150 e-9 0.000 000 024 e-9 u
electron volt-hartree relationship 3.674 932 379 e-2 0.000 000 081 e-2 E_h
electron volt-hertz relationship 2.417 989 348 e14 0.000 000 053 e14 Hz
electron volt-inverse meter relationship 8.065 544 29 e5 0.000 000 18 e5 m^-1
electron volt-joule relationship 1.602 176 565 e-19 0.000 000 035 e-19 J
electron volt-kelvin relationship 1.160 4519 e4 0.000 0011 e4 K
electron volt-kilogram relationship 1.782 661 845 e-36 0.000 000 039 e-36 kg
elementary charge 1.602 176 565 e-19 0.000 000 035 e-19 C
elementary charge over h 2.417 989 348 e14 0.000 000 053 e14 A J^-1
Faraday constant 96 485.3365 0.0021 C mol^-1
Faraday constant for conventional electric current 96 485.3321 0.0043 C_90 mol^-1
Fermi coupling constant 1.166 364 e-5 0.000 005 e-5 GeV^-2
fine-structure constant 7.297 352 5698 e-3 0.000 000 0024 e-3
first radiation constant 3.741 771 53 e-16 0.000 000 17 e-16 W m^2
first radiation constant for spectral radiance 1.191 042 869 e-16 0.000 000 053 e-16 W m^2 sr^-1
hartree-atomic mass unit relationship 2.921 262 3246 e-8 0.000 000 0021 e-8 u
hartree-electron volt relationship 27.211 385 05 0.000 000 60 eV
Hartree energy 4.359 744 34 e-18 0.000 000 19 e-18 J
Hartree energy in eV 27.211 385 05 0.000 000 60 eV
hartree-hertz relationship 6.579 683 920 729 e15 0.000 000 000 033 e15 Hz
hartree-inverse meter relationship 2.194 746 313 708 e7 0.000 000 000 011 e7 m^-1
hartree-joule relationship 4.359 744 34 e-18 0.000 000 19 e-18 J
hartree-kelvin relationship 3.157 7504 e5 0.000 0029 e5 K
hartree-kilogram relationship 4.850 869 79 e-35 0.000 000 21 e-35 kg
helion-electron mass ratio 5495.885 2754 0.000 0050
helion g factor -4.255 250 613 0.000 000 050
helion mag. mom. -1.074 617 486 e-26 0.000 000 027 e-26 J T^-1
helion mag. mom. to Bohr magneton ratio -1.158 740 958 e-3 0.000 000 014 e-3
helion mag. mom. to nuclear magneton ratio -2.127 625 306 0.000 000 025
helion mass 5.006 412 34 e-27 0.000 000 22 e-27 kg
helion mass energy equivalent 4.499 539 02 e-10 0.000 000 20 e-10 J
helion mass energy equivalent in MeV 2808.391 482 0.000 062 MeV
helion mass in u 3.014 932 2468 0.000 000 0025 u
helion molar mass 3.014 932 2468 e-3 0.000 000 0025 e-3 kg mol^-1
helion-proton mass ratio 2.993 152 6707 0.000 000 0025
hertz-atomic mass unit relationship 4.439 821 6689 e-24 0.000 000 0031 e-24 u
hertz-electron volt relationship 4.135 667 516 e-15 0.000 000 091 e-15 eV
hertz-hartree relationship 1.519 829 846 0045 e-16 0.000 000 000 0076 e-16 E_h
hertz-inverse meter relationship 3.335 640 951... e-9 (exact) m^-1
hertz-joule relationship 6.626 069 57 e-34 0.000 000 29 e-34 J
hertz-kelvin relationship 4.799 2434 e-11 0.000 0044 e-11 K
hertz-kilogram relationship 7.372 496 68 e-51 0.000 000 33 e-51 kg
inverse fine-structure constant 137.035 999 074 0.000 000 044
inverse meter-atomic mass unit relationship 1.331 025 051 20 e-15 0.000 000 000 94 e-15 u
inverse meter-electron volt relationship 1.239 841 930 e-6 0.000 000 027 e-6 eV
inverse meter-hartree relationship 4.556 335 252 755 e-8 0.000 000 000 023 e-8 E_h
inverse meter-hertz relationship 299 792 458 (exact) Hz
inverse meter-joule relationship 1.986 445 684 e-25 0.000 000 088 e-25 J
inverse meter-kelvin relationship 1.438 7770 e-2 0.000 0013 e-2 K
inverse meter-kilogram relationship 2.210 218 902 e-42 0.000 000 098 e-42 kg
inverse of conductance quantum 12 906.403 7217 0.000 0042 ohm
Josephson constant 483 597.870 e9 0.011 e9 Hz V^-1
joule-atomic mass unit relationship 6.700 535 85 e9 0.000 000 30 e9 u
joule-electron volt relationship 6.241 509 34 e18 0.000 000 14 e18 eV
joule-hartree relationship 2.293 712 48 e17 0.000 000 10 e17 E_h
joule-hertz relationship 1.509 190 311 e33 0.000 000 067 e33 Hz
joule-inverse meter relationship 5.034 117 01 e24 0.000 000 22 e24 m^-1
joule-kelvin relationship 7.242 9716 e22 0.000 0066 e22 K
joule-kilogram relationship 1.112 650 056... e-17 (exact) kg
kelvin-atomic mass unit relationship 9.251 0868 e-14 0.000 0084 e-14 u
kelvin-electron volt relationship 8.617 3324 e-5 0.000 0078 e-5 eV
kelvin-hartree relationship 3.166 8114 e-6 0.000 0029 e-6 E_h
kelvin-hertz relationship 2.083 6618 e10 0.000 0019 e10 Hz
kelvin-inverse meter relationship 69.503 476 0.000 063 m^-1
kelvin-joule relationship 1.380 6488 e-23 0.000 0013 e-23 J
kelvin-kilogram relationship 1.536 1790 e-40 0.000 0014 e-40 kg
kilogram-atomic mass unit relationship 6.022 141 29 e26 0.000 000 27 e26 u
kilogram-electron volt relationship 5.609 588 85 e35 0.000 000 12 e35 eV
kilogram-hartree relationship 2.061 485 968 e34 0.000 000 091 e34 E_h
kilogram-hertz relationship 1.356 392 608 e50 0.000 000 060 e50 Hz
kilogram-inverse meter relationship 4.524 438 73 e41 0.000 000 20 e41 m^-1
kilogram-joule relationship 8.987 551 787... e16 (exact) J
kilogram-kelvin relationship 6.509 6582 e39 0.000 0059 e39 K
lattice parameter of silicon 543.102 0504 e-12 0.000 0089 e-12 m
Loschmidt constant (273.15 K, 100 kPa) 2.651 6462 e25 0.000 0024 e25 m^-3
Loschmidt constant (273.15 K, 101.325 kPa) 2.686 7805 e25 0.000 0024 e25 m^-3
mag. constant 12.566 370 614... e-7 (exact) N A^-2
mag. flux quantum 2.067 833 758 e-15 0.000 000 046 e-15 Wb
molar gas constant 8.314 4621 0.000 0075 J mol^-1 K^-1
molar mass constant 1 e-3 (exact) kg mol^-1
molar mass of carbon-12 12 e-3 (exact) kg mol^-1
molar Planck constant 3.990 312 7176 e-10 0.000 000 0028 e-10 J s mol^-1
molar Planck constant times c 0.119 626 565 779 0.000 000 000 084 J m mol^-1
molar volume of ideal gas (273.15 K, 100 kPa) 22.710 953 e-3 0.000 021 e-3 m^3 mol^-1
molar volume of ideal gas (273.15 K, 101.325 kPa) 22.413 968 e-3 0.000 020 e-3 m^3 mol^-1
molar volume of silicon 12.058 833 01 e-6 0.000 000 80 e-6 m^3 mol^-1
Mo x unit 1.002 099 52 e-13 0.000 000 53 e-13 m
muon Compton wavelength 11.734 441 03 e-15 0.000 000 30 e-15 m
muon Compton wavelength over 2 pi 1.867 594 294 e-15 0.000 000 047 e-15 m
muon-electron mass ratio 206.768 2843 0.000 0052
muon g factor -2.002 331 8418 0.000 000 0013
muon mag. mom. -4.490 448 07 e-26 0.000 000 15 e-26 J T^-1
muon mag. mom. anomaly 1.165 920 91 e-3 0.000 000 63 e-3
muon mag. mom. to Bohr magneton ratio -4.841 970 44 e-3 0.000 000 12 e-3
muon mag. mom. to nuclear magneton ratio -8.890 596 97 0.000 000 22
muon mass 1.883 531 475 e-28 0.000 000 096 e-28 kg
muon mass energy equivalent 1.692 833 667 e-11 0.000 000 086 e-11 J
muon mass energy equivalent in MeV 105.658 3715 0.000 0035 MeV
muon mass in u 0.113 428 9267 0.000 000 0029 u
muon molar mass 0.113 428 9267 e-3 0.000 000 0029 e-3 kg mol^-1
muon-neutron mass ratio 0.112 454 5177 0.000 000 0028
muon-proton mag. mom. ratio -3.183 345 107 0.000 000 084
muon-proton mass ratio 0.112 609 5272 0.000 000 0028
muon-tau mass ratio 5.946 49 e-2 0.000 54 e-2
natural unit of action 1.054 571 726 e-34 0.000 000 047 e-34 J s
natural unit of action in eV s 6.582 119 28 e-16 0.000 000 15 e-16 eV s
natural unit of energy 8.187 105 06 e-14 0.000 000 36 e-14 J
natural unit of energy in MeV 0.510 998 928 0.000 000 011 MeV
natural unit of length 386.159 268 00 e-15 0.000 000 25 e-15 m
natural unit of mass 9.109 382 91 e-31 0.000 000 40 e-31 kg
natural unit of mom.um 2.730 924 29 e-22 0.000 000 12 e-22 kg m s^-1
natural unit of mom.um in MeV/c 0.510 998 928 0.000 000 011 MeV/c
natural unit of time 1.288 088 668 33 e-21 0.000 000 000 83 e-21 s
natural unit of velocity 299 792 458 (exact) m s^-1
neutron Compton wavelength 1.319 590 9068 e-15 0.000 000 0011 e-15 m
neutron Compton wavelength over 2 pi 0.210 019 415 68 e-15 0.000 000 000 17 e-15 m
neutron-electron mag. mom. ratio 1.040 668 82 e-3 0.000 000 25 e-3
neutron-electron mass ratio 1838.683 6605 0.000 0011
neutron g factor -3.826 085 45 0.000 000 90
neutron gyromag. ratio 1.832 471 79 e8 0.000 000 43 e8 s^-1 T^-1
neutron gyromag. ratio over 2 pi 29.164 6943 0.000 0069 MHz T^-1
neutron mag. mom. -0.966 236 47 e-26 0.000 000 23 e-26 J T^-1
neutron mag. mom. to Bohr magneton ratio -1.041 875 63 e-3 0.000 000 25 e-3
neutron mag. mom. to nuclear magneton ratio -1.913 042 72 0.000 000 45
neutron mass 1.674 927 351 e-27 0.000 000 074 e-27 kg
neutron mass energy equivalent 1.505 349 631 e-10 0.000 000 066 e-10 J
neutron mass energy equivalent in MeV 939.565 379 0.000 021 MeV
neutron mass in u 1.008 664 916 00 0.000 000 000 43 u
neutron molar mass 1.008 664 916 00 e-3 0.000 000 000 43 e-3 kg mol^-1
neutron-muon mass ratio 8.892 484 00 0.000 000 22
neutron-proton mag. mom. ratio -0.684 979 34 0.000 000 16
neutron-proton mass difference 2.305 573 92 e-30 0.000 000 76 e-30
neutron-proton mass difference energy equivalent 2.072 146 50 e-13 0.000 000 68 e-13
neutron-proton mass difference energy equivalent in MeV 1.293 332 17 0.000 000 42
neutron-proton mass difference in u 0.001 388 449 19 0.000 000 000 45
neutron-proton mass ratio 1.001 378 419 17 0.000 000 000 45
neutron-tau mass ratio 0.528 790 0.000 048
neutron to shielded proton mag. mom. ratio -0.684 996 94 0.000 000 16
Newtonian constant of gravitation 6.673 84 e-11 0.000 80 e-11 m^3 kg^-1 s^-2
Newtonian constant of gravitation over h-bar c 6.708 37 e-39 0.000 80 e-39 (GeV/c^2)^-2
nuclear magneton 5.050 783 53 e-27 0.000 000 11 e-27 J T^-1
nuclear magneton in eV/T 3.152 451 2605 e-8 0.000 000 0022 e-8 eV T^-1
nuclear magneton in inverse meters per tesla 2.542 623 527 e-2 0.000 000 056 e-2 m^-1 T^-1
nuclear magneton in K/T 3.658 2682 e-4 0.000 0033 e-4 K T^-1
nuclear magneton in MHz/T 7.622 593 57 0.000 000 17 MHz T^-1
Planck constant 6.626 069 57 e-34 0.000 000 29 e-34 J s
Planck constant in eV s 4.135 667 516 e-15 0.000 000 091 e-15 eV s
Planck constant over 2 pi 1.054 571 726 e-34 0.000 000 047 e-34 J s
Planck constant over 2 pi in eV s 6.582 119 28 e-16 0.000 000 15 e-16 eV s
Planck constant over 2 pi times c in MeV fm 197.326 9718 0.000 0044 MeV fm
Planck length 1.616 199 e-35 0.000 097 e-35 m
Planck mass 2.176 51 e-8 0.000 13 e-8 kg
Planck mass energy equivalent in GeV 1.220 932 e19 0.000 073 e19 GeV
Planck temperature 1.416 833 e32 0.000 085 e32 K
Planck time 5.391 06 e-44 0.000 32 e-44 s
proton charge to mass quotient 9.578 833 58 e7 0.000 000 21 e7 C kg^-1
proton Compton wavelength 1.321 409 856 23 e-15 0.000 000 000 94 e-15 m
proton Compton wavelength over 2 pi 0.210 308 910 47 e-15 0.000 000 000 15 e-15 m
proton-electron mass ratio 1836.152 672 45 0.000 000 75
proton g factor 5.585 694 713 0.000 000 046
proton gyromag. ratio 2.675 222 005 e8 0.000 000 063 e8 s^-1 T^-1
proton gyromag. ratio over 2 pi 42.577 4806 0.000 0010 MHz T^-1
proton mag. mom. 1.410 606 743 e-26 0.000 000 033 e-26 J T^-1
proton mag. mom. to Bohr magneton ratio 1.521 032 210 e-3 0.000 000 012 e-3
proton mag. mom. to nuclear magneton ratio 2.792 847 356 0.000 000 023
proton mag. shielding correction 25.694 e-6 0.014 e-6
proton mass 1.672 621 777 e-27 0.000 000 074 e-27 kg
proton mass energy equivalent 1.503 277 484 e-10 0.000 000 066 e-10 J
proton mass energy equivalent in MeV 938.272 046 0.000 021 MeV
proton mass in u 1.007 276 466 812 0.000 000 000 090 u
proton molar mass 1.007 276 466 812 e-3 0.000 000 000 090 e-3 kg mol^-1
proton-muon mass ratio 8.880 243 31 0.000 000 22
proton-neutron mag. mom. ratio -1.459 898 06 0.000 000 34
proton-neutron mass ratio 0.998 623 478 26 0.000 000 000 45
proton rms charge radius 0.8775 e-15 0.0051 e-15 m
proton-tau mass ratio 0.528 063 0.000 048
quantum of circulation 3.636 947 5520 e-4 0.000 000 0024 e-4 m^2 s^-1
quantum of circulation times 2 7.273 895 1040 e-4 0.000 000 0047 e-4 m^2 s^-1
Rydberg constant 10 973 731.568 539 0.000 055 m^-1
Rydberg constant times c in Hz 3.289 841 960 364 e15 0.000 000 000 017 e15 Hz
Rydberg constant times hc in eV 13.605 692 53 0.000 000 30 eV
Rydberg constant times hc in J 2.179 872 171 e-18 0.000 000 096 e-18 J
Sackur-Tetrode constant (1 K, 100 kPa) -1.151 7078 0.000 0023
Sackur-Tetrode constant (1 K, 101.325 kPa) -1.164 8708 0.000 0023
second radiation constant 1.438 7770 e-2 0.000 0013 e-2 m K
shielded helion gyromag. ratio 2.037 894 659 e8 0.000 000 051 e8 s^-1 T^-1
shielded helion gyromag. ratio over 2 pi 32.434 100 84 0.000 000 81 MHz T^-1
shielded helion mag. mom. -1.074 553 044 e-26 0.000 000 027 e-26 J T^-1
shielded helion mag. mom. to Bohr magneton ratio -1.158 671 471 e-3 0.000 000 014 e-3
shielded helion mag. mom. to nuclear magneton ratio -2.127 497 718 0.000 000 025
shielded helion to proton mag. mom. ratio -0.761 766 558 0.000 000 011
shielded helion to shielded proton mag. mom. ratio -0.761 786 1313 0.000 000 0033
shielded proton gyromag. ratio 2.675 153 268 e8 0.000 000 066 e8 s^-1 T^-1
shielded proton gyromag. ratio over 2 pi 42.576 3866 0.000 0010 MHz T^-1
shielded proton mag. mom. 1.410 570 499 e-26 0.000 000 035 e-26 J T^-1
shielded proton mag. mom. to Bohr magneton ratio 1.520 993 128 e-3 0.000 000 017 e-3
shielded proton mag. mom. to nuclear magneton ratio 2.792 775 598 0.000 000 030
speed of light in vacuum 299 792 458 (exact) m s^-1
standard acceleration of gravity 9.806 65 (exact) m s^-2
standard atmosphere 101 325 (exact) Pa
standard-state pressure 100 000 (exact) Pa
Stefan-Boltzmann constant 5.670 373 e-8 0.000 021 e-8 W m^-2 K^-4
tau Compton wavelength 0.697 787 e-15 0.000 063 e-15 m
tau Compton wavelength over 2 pi 0.111 056 e-15 0.000 010 e-15 m
tau-electron mass ratio 3477.15 0.31
tau mass 3.167 47 e-27 0.000 29 e-27 kg
tau mass energy equivalent 2.846 78 e-10 0.000 26 e-10 J
tau mass energy equivalent in MeV 1776.82 0.16 MeV
tau mass in u 1.907 49 0.000 17 u
tau molar mass 1.907 49 e-3 0.000 17 e-3 kg mol^-1
tau-muon mass ratio 16.8167 0.0015
tau-neutron mass ratio 1.891 11 0.000 17
tau-proton mass ratio 1.893 72 0.000 17
Thomson cross section 0.665 245 8734 e-28 0.000 000 0013 e-28 m^2
triton-electron mass ratio 5496.921 5267 0.000 0050
triton g factor 5.957 924 896 0.000 000 076
triton mag. mom. 1.504 609 447 e-26 0.000 000 038 e-26 J T^-1
triton mag. mom. to Bohr magneton ratio 1.622 393 657 e-3 0.000 000 021 e-3
triton mag. mom. to nuclear magneton ratio 2.978 962 448 0.000 000 038
triton mass 5.007 356 30 e-27 0.000 000 22 e-27 kg
triton mass energy equivalent 4.500 387 41 e-10 0.000 000 20 e-10 J
triton mass energy equivalent in MeV 2808.921 005 0.000 062 MeV
triton mass in u 3.015 500 7134 0.000 000 0025 u
triton molar mass 3.015 500 7134 e-3 0.000 000 0025 e-3 kg mol^-1
triton-proton mass ratio 2.993 717 0308 0.000 000 0025
unified atomic mass unit 1.660 538 921 e-27 0.000 000 073 e-27 kg
von Klitzing constant 25 812.807 4434 0.000 0084 ohm
weak mixing angle 0.2223 0.0021
Wien frequency displacement law constant 5.878 9254 e10 0.000 0053 e10 Hz K^-1
Wien wavelength displacement law constant 2.897 7721 e-3 0.000 0026 e-3 m K