This calculator allows you to estimate the CO₂ equivalent (in tonnes) for the most commonly used refrigerants.

For the selected refrigerant, enter the amount contained in your equipment in the field “Quantity of refrigerant in kg.” The equivalent CO₂ amount will be calculated in the next column, along with the required leak check frequency.

The CO₂ equivalent is calculated using GWP (Global Warming Potential) values provided in EU Regulation 2024/573 on fluorinated greenhouse gases. These values for partially fluorinated hydrocarbons (HFCs) are based on the IPCC Fourth Assessment Report.

You may also use this calculator to estimate CO₂ emissions from refrigerant leaks. In that case, enter the quantity of leaked refrigerant (kg) into the input field. The resulting column will show the corresponding CO₂ emissions. Please be aware that for this purpose, updated GWP values from the IPCC Fifth and Sixth Assessment Reports are available and may be more appropriate.

 

RefrigerantCompositionGWPRefrigerant quantity (kg)
equivalent to 5 tonnes CO2
Refrigerant
quantity (kg)
CO2
equivalent (t)
Leak test
frequency
HFC 23 CHF3 14800 0,34
HFC-32 CH2F2 675 7,41
HFC-125 C2HF5 3500 1,43
HFC-134a CH2FCF3 1430 3,50
HFC-143a C2H3F3 4470 1,12
HFC-404A 52% HFC-143a
44% HFC-125
4% HFC-134a
3922 1,27
HFC-407A 20% R32
40% R125
40% R134A
2107 2,37
HFC-407C 52% R134a
25% R125
23% R32
1774 2,82
HFC-410a 50% HFC 32
50% HFC-125
2088 2,40