Thermal Efficiency Calculator
Free calculate thermal efficiency, heat engine efficiency, and carnot efficiency. determine efficiency from work output, heat input, and temperature ratios.
Input Parameters
Results
Enter parameters to calculate thermal efficiency
Thermal Efficiency Formulas
General Formula
η = W / Qₕ
Where:
- • η = thermal efficiency
- • W = work output
- • Qₕ = heat input
Carnot Efficiency
η = 1 - (Tₖ / Tₕ)
Maximum theoretical efficiency
Typical Efficiencies
- • Steam engine: 5-20%
- • Gasoline engine: 25-30%
- • Diesel engine: 30-40%
- • Gas turbine: 35-45%