Refrigerant Recovery Calculator
Enter your refrigerant and the system's total charge, and get an instant recommendation for recovery cylinder size plus the maximum safe fill limit for that cylinder.
- Covers All 8 Stocked Refrigerants
- Built for Field Use
- No Login Required
- Updated for Current A2L Data
How the Recovery Calculator Works
Three steps between you and a verified saturation reading no chart flipping required.
Enter the refrigerant type
Different refrigerants have different maximum fill percentages by weight for a given cylinder.
Enter the system's total charge
Use the nameplate charge weight or your best estimate for older systems missing documentation.
Get a cylinder size recommendation
The calculator returns the recommended recovery cylinder size and confirms it won't exceed the safe fill limit.
Why Recovery Cylinder Sizing Matters
Overfilling a recovery cylinder isn't just inefficient it's a genuine safety hazard, and this calculator exists to prevent that mistake before it happens.
The 80% Fill Rule
Most recovery cylinders are rated to a maximum liquid fill of roughly 80% of water capacity by weight, leaving headroom for refrigerant expansion as ambient temperature rises. This percentage can vary slightly by refrigerant density, which is why the calculator asks for refrigerant type rather than applying one flat number to every job.
Sizing for Large-Charge Commercial Systems
A large commercial system's total charge can easily exceed a single recovery cylinder's safe capacity, which means planning for multiple cylinders or a larger-capacity cylinder before arriving on site instead of discovering the shortfall mid-recovery.
A2L Recovery Considerations
Recovering R-32 or R-454B requires an A2L-rated recovery machine and A2L-rated cylinders, not standard equipment used for non-flammable refrigerants like R-410A or R-134a. Confirming equipment rating before a recovery job on an A2L system is a safety requirement, not an optional precaution.
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Frequently Asked Questions
Most cylinders are rated to roughly 80% of water capacity by weight this calculator applies the correct percentage for your selected refrigerant automatically.
An overfilled cylinder has no room for refrigerant expansion as temperature rises, creating a serious overpressure and rupture risk.
Yes A2L refrigerants require A2L-rated recovery machines and cylinders, not standard non-flammable-refrigerant equipment.
The calculator will flag this and recommend either a larger cylinder or multiple cylinders for the job.
Need the Refrigerant to Match?
Every calculator links straight to the in-stock cylinder for that refrigerant.