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Refrigerant PT Chart

ExtensionTools
Item media 3 (screenshot) for Refrigerant PT Chart
Item media 1 (screenshot) for Refrigerant PT Chart
Item media 2 (screenshot) for Refrigerant PT Chart
Item media 3 (screenshot) for Refrigerant PT Chart
Item media 1 (screenshot) for Refrigerant PT Chart
Item media 1 (screenshot) for Refrigerant PT Chart
Item media 2 (screenshot) for Refrigerant PT Chart
Item media 3 (screenshot) for Refrigerant PT Chart

Overview

Offline refrigerant PT chart lookup and superheat/subcooling calculator for 19 refrigerants, from RefrigerantPTChart.com.

Refrigerant PT Chart puts a pressure-temperature lookup and a superheat/subcooling calculator in your browser toolbar. It uses the same verified data and math as RefrigerantPTChart.com and works fully offline. PT lookup • Pick a refrigerant and type a temperature to get the saturation pressure, or type a pressure to get the saturation temperature. • Blends show both liquid (bubble) and vapor (dew) values. • °F or °C, with pressure in psig, kPa or bar. Vacuum readings in inches of mercury. • Values between chart rows are linearly interpolated from the 1-degree table. Superheat and subcooling • Superheat uses the dew (vapor) saturation temperature; subcooling uses the bubble (liquid) saturation temperature. • Enter the gauge pressure and the line temperature; get the result in °F (or K when using °C). Refrigerants (19): R-410A, R-22, R-32, R-454B, R-290, R-600a, R-134a, R-404A, R-448A, R-452A, R-449A, R-407C, R-407A, R-507A, R-513A, R-422D, R-1234yf, R-744 (CO2), R-717 (ammonia). Every result links to the full chart on RefrigerantPTChart.com. Privacy: no account, no tracking, no analytics, no network requests. The extension collects no data. Your unit choice is saved only on your own device. Estimates for reference only; verify with manufacturer data. Questions: hello@refrigerantptchart.com

Details

  • Version
    1.0.0
  • Updated
    October 29, 2026
  • Offered by
    Refrigerant PT Chart
  • Size
    60.8KiB
  • Languages
    English (United States)
  • Developer
    Email
    hello@refrigerantptchart.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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