Use this calculator to convert the amount of R12 refrigerant to its equivalent in R134a. This is especially useful for automotive air conditioning system retrofits from R12 to R134a.
About R12 and R134a Refrigerants
R12 (Dichlorodifluoromethane) is a chlorofluorocarbon (CFC) refrigerant that was commonly used in automotive air conditioning systems before it was phased out due to its ozone-depleting properties. R134a (1,1,1,2-Tetrafluoroethane) is a hydrofluorocarbon (HFC) refrigerant that does not deplete the ozone layer and is used as a replacement for R12 in many applications.
When retrofitting an air conditioning system from R12 to R134a, it’s important to calculate the correct amount of R134a to use. This calculator provides an estimated equivalent amount based on the original R12 charge.
How to Use This Calculator
- Enter the original R12 refrigerant amount in grams.
- Click “Show Advanced Options” if you wish to adjust the conversion factor.
- Click “Convert to R134a” to see the equivalent R134a amount.
Disclaimer
This calculator provides an estimated value. Always refer to manufacturer specifications and guidelines when servicing air conditioning systems.
