Refrigerant Charge Calculator

Estimate system refrigerant charge.

Cooling capacity (1 ton = 12,000 BTU/hr).
tons
Linear measurement in the specified unit.
ft
Enter the liquid line od value for this calculation.
in

Results

Base Charge:
Calculated base charge based on your inputs.
-lbs
Line Set Charge:
Calculated line set charge based on your inputs.
-lbs
Total Charge:
Sum of all calculated values.
-lbs
Reference: ASHRAE/IIAR Standards. Refrigerant charge estimation guidelines.