Scientific Constants Reference

Comprehensive collection of fundamental physical and chemical constants

Speed of Light

Physics
c
299,792,458 m/s

Gravitational Constant

Physics
G
6.674×10⁻¹¹ N·m²/kg²

Planck Constant

Physics
h
6.626×10⁻³⁴ J·s

Elementary Charge

Physics
e
1.602×10⁻¹⁹ C

Electron Mass

Physics
mₑ
9.109×10⁻³¹ kg

Proton Mass

Physics
mₚ
1.673×10⁻²⁷ kg

Avogadro's Number

Chemistry
Nₐ
6.022×10²³ mol⁻¹

Gas Constant

Chemistry
R
8.314 J/(mol·K)

Boltzmann Constant

Physics
k
1.381×10⁻²³ J/K

Permeability of Free Space

Physics
μ₀
4π×10⁻⁷ H/m

Permittivity of Free Space

Physics
ε₀
8.854×10⁻¹² F/m

Stefan-Boltzmann Constant

Physics
σ
5.670×10⁻⁸ W/(m²·K⁴)

🔬Formula

F = ma | E = mc² | PV = nRT | λ = h/p

💡How it works

Scientific constants are fundamental values that appear in physical equations. These include the speed of light (c), Planck's constant (h), Avogadro's number (Nₐ), and many others that form the foundation of scientific calculations.