Heat and energy
Thermodynamics Calculators
Calculate heat transfer, gas laws, entropy, enthalpy, humidity, engine efficiency, and thermodynamic relationships.
Tools
12 calculators
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Dew Point Temperature Calculator
Estimate dew point from humidity conditions.
Enthalpy Calculator
Calculate enthalpy from internal energy and flow work.
Entropy Calculator
Calculate entropy changes.
First Law of Thermodynamics Calculator
Apply energy conservation to thermal systems.
Gibbs Free Energy Calculator
Evaluate spontaneity using Gibbs free energy.
Heat Transfer Calculator
Calculate heat transfer rates.
Humidity Ratio Calculator
Find humidity ratio for moist air.
Ideal Engine Cycle Efficiency Calculator
Estimate ideal heat engine efficiency.
Ideal Gas Law Calculator
Solve pressure, volume, moles, or temperature.
Relative Humidity Calculator
Calculate relative humidity from air conditions.
Specific Heat Calculator
Relate heat energy, mass, and temperature change.
Stagnation Temperature Calculator
Calculate stagnation temperature for fluid flow.
About this category
Thermodynamics Calculators for Heat Transfer, Gas Laws, Humidity, Enthalpy, and Entropy
Use EngLab thermodynamics calculators to solve heat and energy problems, including heat transfer, specific heat, ideal gas law, first law of thermodynamics, entropy, enthalpy, Gibbs free energy, ideal engine cycle efficiency, stagnation temperature, dew point temperature, humidity ratio, and relative humidity. These tools support HVAC checks, thermal design, process calculations, energy balances, psychrometrics, and engineering study.
The thermodynamics calculator library covers practical formulas for energy conservation, heat capacity, gas behavior, moist air properties, heat engine efficiency, thermal state changes, and basic thermodynamic potentials. Use the results for early-stage estimates, coursework, and troubleshooting, then verify final values against property tables, steam tables, psychrometric charts, fluid data, equipment specifications, and project requirements.