Calculations & Conversions at your finger tips.Momentous Engineering formulas catering to HVAC Engineering. A must have for HVAC Engineers. Empower yourself with instant references and solutions offrequently encountered calculation at your finger tips. Just few taps, and all the calculations that consumed lots of efforts and time will vanish, there by increasing efficiency. This means you will have more time to analyze your information and make better informed decisions, thus helping your company maintain a competitive edge.New Calculations in US or Metric units. No need to convert values. Large Input Panel. operate with Finger tips rather than stylus New look MxCalc with more than 2900 units & New functions. New Group of Automobile Calculators added. In-Place unit conversion to switch between US - Metric units. New updated units list with new Units & Categories/Properties. Faster Calculations. Constant Values. New look Scientific Evaluator. List of Calculators Humidity Ratio Moist Air Density Water Vapor Density Mixture Density Relative Humidity Moist Air Enthalpy List of Reference tables. Vapor Pressure (Centrifugal AC Refrig.) Vapor Pressure (R - 22 type Refrig.) Clean Room STD- FS - 209 - D Clean Room STD- FS - 209 - E Clean Room STD- BS - 5295 and more....