Physics & Constants
Engineering constants and physical property references, including thermodynamic properties, universal constants, material densities, and commonly used physical values.
This engineering reference collection contains 10 reference resources covering commonly used technical data, standards, formulas, and engineering information.
Physics & Constants References
Browse the available engineering reference resources.
Standard Atmospheric Pressure
Engineering reference for standard atmospheric pressure values. Quick conversion table for atm, bar, Pascals (Pa), psi, and mmHg.
Avogadro's Number & Molar Mass of Air
Standard reference for Avogadro's number and the precise molar mass of dry air for chemistry and thermodynamic calculations.
Coefficient of Thermal Expansion (CTE)
Linear coefficient of thermal expansion (CTE) chart for common engineering materials including steel, aluminum, copper, and plastics.
Ideal Gas Constant (R)
Universal ideal gas constant (R) values provided in various unit systems (J/mol·K, L·atm/mol·K, etc.) for thermodynamic equations.
Material Densities Chart
Comprehensive density chart (kg/m3 & g/cm3) for common engineering solids, liquids, and gases used in structural and mechanical design.
Permittivity & Permeability of Free Space
Fundamental electromagnetic constants: Vacuum permittivity (ε0) and vacuum permeability (μ0) values for electrical engineering.
Specific Heat Capacities (cp, cv)
Specific heat capacity reference table for common metals, liquids, and ideal gases at standard temperatures and pressures.
Stefan-Boltzmann Constant
Standard value of the Stefan-Boltzmann constant (σ) and its application in black-body radiation and thermal heat transfer engineering.
Thermal Conductivity Constants (k)
Thermal conductivity (k-values) chart for metals, insulators, liquids, and gases to calculate heat conduction rates.
Dynamic & Kinematic Viscosity of Water and Air
Temperature-dependent absolute (dynamic) and kinematic viscosity tables for water and air used in fluid mechanics calculations.