Calculate the maximum theoretical efficiency of a heat engine operating between two thermal reservoirs. This calculator determines the upper limit of efficiency for any heat engine.
Enter your values below
Temperature of the hot reservoir
Temperature of the cold reservoir
How this calculator works
Carnot efficiency equals one minus the ratio of cold reservoir temperature to hot reservoir temperature (both in Kelvin).
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
