In refrigeration service, system design, and teaching, it is often necessary to convert quickly between a refrigerant's saturation pressure and saturation temperature. The “Refrigerant PT Calculator” below can be used directly on this page:
Features
- 78 refrigerants: covers mainstream fluids such as R134a, R22, R32, R410A, R404A, R407C, R290 (propane), R600a, R507, R717 (ammonia), R744 (carbon dioxide), R1234yf, and includes low-GWP alternatives such as R448A, R449A, R452A, R454B, as well as legacy refrigerants like R12 and R502 and natural refrigerants like R290, R600a, and R717.
- Bidirectional conversion: drag the temperature slider to get saturation pressure, or enter pressure to derive saturation temperature.
- Multiple units: temperature °C / °F; pressure bar (absolute) / bar (gauge) / kPa / psi (gauge).
- PT curve visualization: visually shows the saturation pressure-temperature relationship of the refrigerant.
Use Cases
Refrigeration equipment charging and service, chiller and heat-pump system design, refrigeration-principle teaching demonstrations, etc. Data is obtained by linear interpolation from published saturation property tables and is for reference only; actual operation should follow on-site instrument readings.
