Professional units conversion for engineers. 450 units in 48 categories

Professional units conversion for engineers. Engineering specific categories like enthalpy, heat capacity, heat transfer coefficient, torque and viscosity. Add custom units and define favorite conversions. Convert feet and inches to and from decimal lengths. Converts between dynamic and kinematic viscosity. Mass to volumetric flow. Steel hardness equivalents. Gas Constant in 900 sets of units. Powerful formatting and clipboard features.