Refrigerant GWP Chart For 61 Freons (R410A, R134A, R22, etc.)

If you want to know what GWP a refrigerant has, you have to check the refrigerant GWP chart. We have prepared a list of 61 refrigerants and their corresponding GWP values, all summarized in a neat chart you can find further on.

Let’s start with a few pieces of information about GWP and refrigerants:

  • GWP stands for Global Warming Potential. It is a metric that denotes how harmful greenhouse gas a refrigerant is.
  • Carbon dioxide (CO2) is the benchmark greenhouse gas with a designated GWP of 1.
  • Most common refrigerants like R410A, R22, and R134A have a GWP of about 2,000. That means they are about 2,000 worse greenhouse gas than carbon dioxide.
    gwp of r410a, r134a, r32
    GWP of the most commonly used refrigerants in HVAC like R410A, R134A, and R32 is about 2,000.
  • Methane GWP is within the 27 to 30 GWP range. This is one of the most talked about GWPs due to methane from cows and global warming concerns. When used as a refrigerant gas, we denote methane as R50.
  • GWP itself seems from the 1997 Kyoto Protocol about global climate change.

GWP for refrigerants ranges from 1 to over 10,000 GWP. According to the Swedish KTH Royal Institute of Technology, all refrigerants with below 150 GWP are considered to be low GWP refrigerants. You can read more about what GWP is here.

Here is the full list of 61 refrigerants and corresponding GWP values in a chart (the most common freons are highlighted with yellow color):

List Of Refrigerants And GWP Values

Refrigerant: GWP Value:
R10 2900
R11 4750
R12 10700
R22 1810
R23 12400
R32 675
R50 (Methane) 27 – 30
R125 2800
R134a 1430
R143a 4470
R152a 124
R227ea 3220
R236fa 9810
R245fa 1030
R290 3
R404A 3920
R407A 2100
R407C 1774
R407F 1824
R410A 2088
R414B 1990
R417A 2300
R421A 2100
R422A 3100
R422D 1725
R427A 2040
R434A 3260
R437A 2500
R438A 2300
R448A 1397
R449A 1397
R450A 602
R452A 2140
R453A 148
R454A 238
R454B 466
R454C 148
R454D 159
R458A 169
R500 4700
R502 9200
R507A 3985
R513A 573
R516A 726
R600a 3
R744 (Carbon Dioxide) 1
R1233zd(E) 1
R1234yf 4
R1234ze(E) 6
R1234ze(Z) 7
R1234yf/ R32 Mixtures 15-37
R513A/ R134a Mixtures 300-700
R513A/ R1234yf Mixtures 100-300
R32/ R-125/ R1234yf Mixtures 675-930
R32/ R1234yf Mixtures 220-700
R32/ R1234ze(E) Mixtures 500-750
R32/ R1234ze(Z) Mixtures 600-750
R1234yf/ R1234ze(E) Mixtures 4-7
R1234yf/ R1234ze(Z) Mixtures 6-9

As you can see, the GWP values vary quite a lot. For example:

  • R22 has a 1,810 GWP. That means that, pound-per-pound, R22 refrigerant gas is 1,810 times worse greenhouse effect than carbon dioxide.
  • R32 has a 675 GWP. This is one of the few commonly used refrigerants in HVAC with below 1,000 GWP.
  • R50 or methane gas a 27 – 30 GWP. Releasing 1 pound of methane into the atmosphere has the same greenhouse effect as 27 to 30 pounds of carbon dioxide.
  • R134A has a 1,430 GWP.
  • R404A has a 3,920 GWP. This is one of the highest GWP values for a commonly used freon.
  • R407C has a 1,774 GWP.
  • R410A has a 2,088 GWP.
  • R422D has a 1,725 GWP.
  • R427A has a 2,040 GWP.
  • R507A has a 3,985 GWP
  • R1234yf has a 4 GWP. This is one of the most commonly used low GWP refrigerants.

The refrigerant with the highest GWP is R23 with 12,400 GWP. It is very rarely used nowadays.

With this refrigerant GWP chart, you can just read the GWP for most refrigerants off the chart. If you are using a refrigerant that is not in the chart, just give us a comment below, specify the refrigerant, and we will add it with the GWP value on the chart. Thank you.

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