Refrigerant Charge Calculator

Evaluate refrigerant charge status using subcooling and superheat measurements for TXV and piston metering devices.

Measured Subcooling

°F

Target Subcooling

°F

Measured Superheat

°F

Target Superheat

°F

Lineset Length

Metering Device

Tab to move between fields

Charge Status

2 (1=Low, 2=Correct, 3=High)

Estimated Adjustment

0 oz

Subcooling Deviation0 °F

Superheat Deviation0 °F

How to Use This Calculator

Enter Measured Subcooling, Target Subcooling, and Measured Superheat.
Set Target Superheat, Lineset Length, and Metering Device.
Review Charge Status ((1=Low, 2=Correct, 3=High)) and Estimated Adjustment (oz).
Use Subcooling Deviation (°F) and Superheat Deviation (°F) to inform your decision.

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