MxCalc 12c for Palm OS - Most comprehensive collection of units. 150+ Categories, 2500+ units, 50000+ Conversion.
Constant values.
Swap conversions.
Can add new units and property groups.
Easy to use utility, no need to program before using.

Categories: Absolute Zero; Acceleration (Angular); Acceleration (Linear);
Activation Energy; Angle; Angular Momentum; Area; Area per unit; Volume; Boltzmann Constant; Charge / Mole; Concentration; Conductivity; Cost of Power; Cp; Cutting Tools; Data Rate; Data Storage; Density; Depth; Dimensionless; Displacement; Distance; Dynamic Fluidity (1/viscosity); Electric Dipole Moment; Electric Field Strength; Electrical Capacitence; Electrical Charge; Electrical Conductivity;
Electrical Current; Electrical Inductance; Electrical Potential; Electrical Resistance; Electrical Resistivity; Energy; Energy Flux; Energy per unit; AreaEnthalpy; Feed; Feet of Pipe; Flow Rate (Mass); Flow Rate (Volume); Force; Force ( Body ); Force Per Unit Mass; Fouling Factor;
Frequency; Fuel Efficiency; Geometric Displacement; Heat of Combustion; Heat of Fusion; Heat of Vaporisation; Heat Transfer Co-efficient; Height; Henry's Law Constant; Illuminance; Inductance;
Integration Constant; Intensity of Ionising Radiation; Kinetic Energy of Turbulence; Length; Linear Momentum; Linear Thermal expansion coefficient; Luminance; Magnetic Field Strength; Magnetic Flux; Magnetic Flux Density; Magnetic Moment; Magnetomotive Force; Mass;
Mass Density; Molar FlowRate; Molar Heat Capacity; Molecular Weight;
Moment of Inertia; Moment of Inertia ( Area ); Momentum; Momentum Flow Rate; Momentum Flux; Number; Permeability; Permeability Factor;
Photon Emission Rate; Population; Power; Power / Unit Mass; Power / Unit Volume and many more ...

Scientific Evaluator : -

Evaluate expressions and directly convert them using the unit converter utility.
Superlative collection of operators.