WinConverter can convert about 1200 various types of measurement units in 50 categories from one system of measure to another. You can add new unit to existing category or you can create a brand new category. The categories include: Acceleration, Angle, Area, Capacitance, Charge, Concentration Molar, Conductance, Current, Data Storage, Data Transfer, Density, Digital Image Resolution, Energy, EU Currency, Flow, Flow - Mass, Flow - Molar, Force, Frequency Wavelength, Fuel Efficiency, HVAC Efficiency, Illumination, Inductance, Latent Heat, Length, Luminance, Mass, Numbers, Permeability, Power, Pressure, Radiation, Radiation - Absorbed Dose, Radiation - Activity, Radiation - Exposure, Specific Heat, Temperature, Temperature Interval, Thermal Conductivity, Thermal Expansion, Time, Torque, Typography, Velocity, Velocity - Angular, Viscosity - Dynamic, Viscosity - Kinematic, Volume, Volume - Dry and Volume - Lumber.