How to use the carnot efficiency calculator
Find the maximum efficiency of a heat engine. Enter hot reservoir, cold reservoir in the fields above; the carnot efficiency is computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “ideal engine efficiency”, “best possible efficiency”, “heat engine limit”, “calculate carnot efficiency”, “find carnot efficiency”.
Formula
Variables
- Th — Hot reservoir (K)
- Tc — Cold reservoir (K)
Worked example
With hot reservoir = 600 K, cold reservoir = 300 K, the calculator gives carnot efficiency ≈ 50 %.
Frequently asked questions
What is the carnot efficiency calculator used for?
Find the maximum efficiency of a heat engine. It helps with questions such as “ideal engine efficiency”, “best possible efficiency”, “heat engine limit”.
What is the formula for the carnot efficiency calculation?
Carnot efficiency (%) = 100 × (1-Tc / Th). Here Th is hot reservoir (K), Tc is cold reservoir (K).
What inputs do I need for the carnot efficiency calculator?
You need hot reservoir in K, cold reservoir in K. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the carnot efficiency calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the carnot efficiency result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.