Number formats

Automatic Science Fixed
Decimals
1000 separator
Rad Deg Grad
www.periodni.com 2013
PHYSICAL CONSTANTS
Absolute zero
-273.16 °C
Acceleration of free fall, standard
9.806 65 m/s2
Atomic mass unit
1.660 538 782×10-27 kg
Avogadro constant
6.022 141 79×1023 1/mol
Base of natural logarithms
2.718 281 828 459...
Boltzmann constant
1.380 6504×10-23 J/K
Classical electron radius
2.817 940 2894×10-15 m
Electron mass
9.109 382 15×10-31 kg
Electron-proton mass ratio
5.446 170 2177×10-4
Electronvolt
1.602 176 487×10-19 J
Elementary charge
1.602 176 487×10-19 C
Faraday constant
96 485.3399 C/mol
First radiation constant
3.741 771 18×10-16 W m2
Molar gas constant
8.314 472 J/mol K
Molar volume
(Ideal gas, T = 273.15 K, p = 101.325 kPa)
22.413 996×10-3 m3/mol
Newtonian constant of gravitation
6.674 28×10-11 N m2/kg2
Permeability of vacuum
12.566 370 614...×10-7 N/A2
Permittivity of vacuum
8.854 187 817...×10-12 F/m
PI
3.141 592 653 589 793 238...
Planck constants
6.626 068 96×10-34 J s
Second radiation constant
0.014 387 752 m K
Solar constant
1366 W/m2
Speed of light in vacuum
299 792 458 m/s
Speed of sound in air at STP
331.5 + 0.6 * T/°C m/s
Standard pressure
101 325 Pa

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