Refrigerant Charge Estimator
Estimate refrigerant charge adjustment for a system based on capacity and line set length.
Common refrigerant: R-410A or R-32
Total length of liquid and suction lines
From manufacturer specs. Typical: 2-3 lbs per ton (96 oz for 3-ton)
Additional Charge Needed6.0oz
Total Estimated Charge102.0oz
Total in Pounds6.38lbs
Note: Additional charge at 0.6 oz/ft beyond factory 15 ft baseline. R-410A and R-32 are common; always verify manufacturer specs. Overcharging or undercharging degrades efficiency and can damage compressors. Verify with manifold gauges.