Do all normal arithmetic calculations Convert a unit of measurement into many other units SIMULTANEOUSLY (maximum 10), in just one mouse click ! Covers nearly 121 units (SI-MKS, CGS and FPS system) of 18 different entities (length, torque, volume, power, pressure etc.)Do many types of scientific function calculations viz. logarithms, exponents, trigonometric ratios from angles & angles from ratios, temperature conversion between Celcius & Farenheit, random number generation etc. Do all mensuration calculations viz. calculate area and volume of various geometric entities Simple interest, compound interest, annuity, present value, future value calculations etc. Capital Gains based on Cost Inflation Index as per Indian Tax Laws Date calculation, displaying specified period in other time measurement units, hours (or degrees) - minutes - seconds conversion etc.Brief help is also provided.