Refrigerant Calculator
Calculate superheat and subcooling instantly
Free tool for field decisions
Why this tool matters
Solve the calculation or lookup now, then use the demo to see how the answer can stay visible on the morning operating board.
Next best step
Use the result in the field, then see the interactive demo when you want the answer to stay visible after this visit.
Quick Reference
Target Superheat: 8-12°F for fixed orifice, 5-10°F for TXV
Target Subcooling: 10-15°F for most systems
Low Superheat: Possible overcharge or TXV issues
High Superheat: Possible undercharge or restriction
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