ONE FORMULA, ONE ANSWER
Carnot Refrigerator COP Calculator
Check the ideal refrigeration coefficient of performance between two reservoirs. Choose input units and calculate one value within the stated conditions.
Inputs
Calculations run in this browser. Scientific notation such as 1.2e-3 is supported. Do not group thousands.
Result
Carnot refrigerator COP
Enter values and select Calculate.
COP_R,C = T_c / (T_h − T_c)
Assumptions
Use T_h>T_c>0 K. Refrigeration COP is heat removed divided by work input; it differs from heating heat-pump COP. It can exceed one and does not predict actual equipment performance.
Displayed values are floating-point approximations. Measurement uncertainty and design safety factors are not calculated.
Formula references and credits
NaNa Lab created the code, descriptions, icons and preview images. Text, figures and code from the linked references have not been reproduced.
Physical constants: NIST / CODATA 2022. The values of μ₀ and ε₀ are measured recommendations, not exact defining constants. Values and precision notes are in the source record.
This site includes Google advertising and analytics, and Cloudflare analytics.