The ExactCharge Target Superheat Application instantly calculates a target superheat value used to charge and test fixed orifice metering device refrigeration systems. Target Superheat is displayed from inputted Indoor Wet bulb, Indoor Dry Bulb, and Outdoor Ambient temperatures. The ExactCharge Target Superheat Application is the most accurate target superheat calculator available because it is the only one that uses an Indoor Dry Bulb input to calculate required superheat. All other target superheat calculators are based on an indoor fixed humidity input of 50%. The lack of an indoor dry bulb input can cause a target superheat value to be off as much as 4 to 5 degrees from one that utilizes an indoor dry bulb temperature input in its target superheat calculations. ExactCharge Industries Inc. continues its efforts to produce viable refrigeration software that benefits the HVAC/R industry.