This is a demo version of the Science Unit Converter in which only several buttons have a full functionality as are: Amount of Substance, Area, Data Storage, Force, Length, and Temperature. All yellow buttons are dysfunctional in this free version of the app. You can get a full version of the Science Unit Converter for only $4.99 with right to get future updates of the app for free. New options are coming soon. This limited time offer is available at the following link: http://apps.microsoft.com/windows/app/science-unit-converter/4ebf761d-d782-4dba-a21d-9719c9399dd2 Description of the full version of the Science Unit Converter: Scientists, engineers, and students: Let Science Unit Converter save your time and money. For sure Science Unit Converter is one of the best unit converters on the market. Currently can handle more than 60 different conversion categories as are: Acceleration, Acceleration-Angular, Amount of Substance, Angle, Angle (Solids), Angular Velocity, Area, Calorific Value, Capacitance, Charge, Chemical-Henry's Law, Concentration-Liquid Solution, Concentration-Molar, Conductance, Conductivity, Current, Data Storage, Data Transfer, Density, Digital Image Resolution, Dynamic Viscosity, Electric Field, Energy, Entropy, Flow, Flow-Mass, Flow-Molar, Force, Frequency Wavelength, Fractions, Fuel Efficiency, Heat Capacity, Heat Flux Density, Heat Transfer Coefficient, HVAC Efficiency, Hydrometer, Illumination, Illumination-Luminous Intensity, Inductance, Kinematic Viscosity, Latent Heat, Length, Linear Change Density, Linear Current Density, Light, Luminance, Magnetic Field Strength, Magnetic Flux, Magnetic Flux Density, Magnetomotive Force, Mass, Mass Flux Density, Moment of Inertia, Permeability, Power, Pressure, Speed, Temperature, Time, Torque, Volume, and Volume-Dry. For example, with Length selected, you would be able to handle the following conversions: angstrom (Å), arpent, astronomical unit (AU), centimeter (cm), chain [engineer's], chain [Gunter's], decimeter (dm), dekameter (dam), fathom (ftm), fermi (fm), feet (ft), furlong, hectometer (hm), inch (in), kilometer (km), kiloparsec (Kpc), league, light year (ly), link, megaparsec (Mpc), meter (m), micrometer (μm), mil (mil), mile (mi), millimeter (mm), nanometer (nm), nautical mile (M), parsec (pc), perch, pica, planck, point, pole, rod, twip, span, and yard (yd). An another example, with Energy selected, you would be able to handle the following conversions: attojoule (aJ), British thermal unit (BTU) - international table, British thermal unit (BTU) – thermochemical, calorie (cal) - international table, calorie (cal) – nutritional, calorie (cal) – thermochemical, dyne-centimeter (dyn-cm), electron volt (eV), erg (erg), feet-pound (ft-lb), gigajoule (GJ), gigawatt-hour (GWH), gram force-centimeter, gram force-meter, horsepower-hour (hph), inch-ounce (in-oz), inch-pound (in-lb), joule (J), kilocalorie (kcal) - international table, kilocalorie (kcal) – thermochemical, kiloelectron volt (keV), kilogram force-centimeter (kg F-cm), kilogram force-meter (kg F-m), kilojoule (kJ), kiloton, kilowatt-hour (kWH), MBTU, megaelectron volt (MeV), megajoule (MJ), megaton, megawatt-hour (MWH), meter-kilopond (m-kp), microjoule (µJ), millijoule (mJ), nanojoule (nJ), newton-meter (Nm), ounce force-inch (oz f-in), pound force-foot (lb f-ft), pound force-inch (lb f-in), poundal-foot (p-ft), therm (thm), ton (explosives), ton-hour (refrigeration), watt-hour (W-H), and watt-second (W-s). For example, with Fractions selected, you would be able to transfer decimal number (for example 105.225) into fraction number (4209/40), or integer number plus fraction number, (105+9/40). Science Unit Converter is capable to do all unit conversions. If you find something missing, let us know, and we will implement that trough updates of the software. Snapped interface is allowed for all screen sizes, which gives you opportunity for side by side work with another apps as you can see for screenshot pictures. Science Unit Converter has Copy and Paste buttons, which allow you to fast paste numbers into Science Unit Converter as well as to copy numbers from Science Unit Converter and past into another apps. Also, Invert Selection button is available into Science Unit Converter for fast reversion, opposing selection of selected items under Input and Output. The colors of the text, buttons, and background into Science Unit Converter are carefully selected to minimize power usage and keep your tablets and laptops live for long time (“GO GREEN”). Every day we are working on Science Unit Converter adding the new conversion categories. Our plan is to make Science Unit Converter the most popular unit converter program on the planet.