EngineeringFormulaThermodynamics
One calculator per heat-transfer mechanism, plus gas behavior and cycle efficiency.
Heat moves by conduction, convection, or storage in a material's own heat capacity, and this discipline has a calculator for each mechanism rather than one combined tool: Heat Conduction for Fourier's law through a plane wall, Convective Heat Transfer for Newton's law of cooling, Heat Energy for straightforward mcΔT storage. Thermal Resistance sits alongside Heat Conduction as the R-value framing of the same physics.
Ideal Gas Law and Carnot Efficiency cover the other half of the discipline - gas behavior under pressure, volume, and temperature, and the theoretical efficiency ceiling for any heat engine operating between two reservoirs. All temperature inputs across this discipline are handled as absolute values internally, so entering Celsius or Fahrenheit converts correctly before anything is calculated.
Thermodynamics Calculators
16 tools- Carnot Efficiency Calculatorη = 1 − Tc / Th
- Convective Heat Transfer CalculatorQ̇ = h A ΔT
- Heat Energy CalculatorQ = m c ΔT
- Specific Heat Calculatorc = Q / (m ΔT)
- Heat Conduction CalculatorQ̇ = k A ΔT / L
- Thermal Conductivity Calculatork = Q̇ L / (A ΔT)
- Thermal Expansion CalculatorΔL = α L₀ (Tf − Ti)
- Ideal Gas Law CalculatorP = n R T / V
- Thermal Resistance CalculatorR = ΔT / Q̇
- U-Value CalculatorRlayer = L / k
- Heat Loss CalculatorQtrans = Σ(U × A × ΔT)
- HVAC Load CalculatorQenv = Σ(U × A × ΔT)
- Refrigerant Charge CalculatorLine charge = charged length delta × charge rate
- BTU CalculatorArea = L × Wd
- Dew Point Calculatorγ = (a × Tc) / (b + Tc) + ln(RH / 100)
- Wind Chill CalculatorWC = 35.74 + 0.6215T − 35.75V^0.16 + 0.4275T V^0.16
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