Coefficient of Performance Calculator
Calculate refrigeration COP from heat removed and input work.
How to Use This Calculator
1
Enter Q_L
Cooling capacity or heat removed from cold space (in watts).
2
Enter W_in
Electrical input power to the device (in watts).
3
Calculate COP
Higher COP means better efficiency for the same cooling effect.
Formula
COP = Q_L / W_in
Example: Q_L=800 W, W_in=400 W → COP = 2.0
About Coefficient of Performance
COP measures efficiency of refrigerators and heat pumps; higher is better.
- Comparing appliances' efficiency
- Estimating operating cost and performance
Frequently Asked Questions
Is COP the same as EER/SEER?
They are related metrics but use different units and contexts.
Can COP exceed 1?
Yes, refrigerators commonly have COP > 1 since they move heat, not convert it.