HVAC/R Selection, Comparison & Reference Tools

Refrigerant Tools & Calculators

Use practical tools to shortlist refrigerants, compare candidates, calculate climate impact and access engineering reference data. Each tool is designed to support research and screening before you verify equipment approvals, standards and local regulations.

Start with your task
Select Build a refrigerant shortlist from application, region, GWP and safety preferences.
Compare Review two refrigerants side by side before deeper engineering evaluation.
Calculate Understand GWP-related climate impact and CO₂-equivalent values.
Reference Access pressure–temperature data and supporting refrigerant resources.
The tools on Refrigerants.net are research and screening aids. They do not replace manufacturer documentation, equipment approval, SDS, current standards or jurisdiction-specific rules.
Core Tools

Five practical tools for refrigerant research

Choose the tool that matches the decision you are making. Selection and comparison tools help narrow options; calculators and reference tools help quantify and verify technical context.

Climate Metric

GWP Calculator

Use refrigerant GWP data together with refrigerant quantity to understand the climate significance of a charge, release scenario or refrigerant transition.

GWPMassClimate Impact
Open GWP Calculator
CO₂ Equivalent

CO₂e Calculator

Convert a refrigerant mass and GWP value into carbon-dioxide equivalent so climate impact can be compared on a common basis.

kg / lbGWPCO₂e
Open CO₂e Calculator
Engineering Reference

Pressure–Temperature Chart

Access pressure–temperature reference data for major refrigerants and use it as a technical reference alongside manufacturer service information.

PressureTemperatureReference
Open P–T Chart
Selection & Decision Tools

Shortlist first, then compare the candidates that remain

The Finder and Comparison Tool serve different stages of the same decision. Use the Finder when the option set is still broad; use the Comparison Tool when the shortlist is already narrow.

Step 1 · Shortlist

Refrigerant Finder

Useful when you know the application and project constraints but have not yet decided which refrigerants deserve closer technical review.

New equipment vs replacement research Application and system type Regional transition context GWP target Safety preference System scale / format
Build a Shortlist
Step 2 · Compare

Refrigerant Comparison Tool

Useful after two refrigerants have emerged as realistic candidates and you need a structured side-by-side review before equipment-specific validation.

GWP and climate role Safety classification Refrigerant family / composition Application fit Transition position Further checks required
Compare Two Refrigerants
Climate & Compliance Calculators

GWP and CO₂e answer different questions

GWP is a relative climate metric assigned to a greenhouse gas. CO₂e applies that metric to an actual refrigerant quantity so different gases and charge sizes can be compared on a common climate-impact basis.

GWP

GWP Calculator

Use refrigerant GWP information to understand how the climate intensity of one refrigerant compares with another and how a change in refrigerant type affects a given mass.

Concept Refrigerant climate metric + refrigerant quantity
Open GWP Calculator
CO₂e

CO₂e Calculator

Use an actual charge, leak or refrigerant mass to calculate its carbon-dioxide-equivalent value using the selected GWP basis.

Core relationship CO₂e = refrigerant mass × GWP
Open CO₂e Calculator
Engineering Reference

Pressure–Temperature Chart

Pressure–temperature relationships are fundamental refrigerant reference data. Use the P–T tool to review saturation data for supported refrigerants, then confirm service values against the equipment manufacturer's documentation and the exact refrigerant composition.

Open Pressure–Temperature Chart
Reference preview
R32TemperaturePressure
R410ATemperaturePressure
R134aTemperaturePressure
R290TemperaturePressure
R744TemperaturePressure

Tools are screening and reference aids — not engineering approval

Results from Refrigerants.net tools are intended for research, preliminary screening and technical reference. They do not replace equipment manufacturer approval, manufacturer service documentation, SDS, current standards, pressure-rated component requirements, applicable product or building codes, or local refrigerant regulations. A refrigerant that appears to meet a GWP or safety preference is not automatically suitable for a specific HVAC/R system.

HVAC/R Project Support

Need help interpreting a tool result?

Discuss refrigerant selection, low-GWP transition, HVAC/R applications, refrigerant sourcing, leak detection or OEM integration requirements.