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Both calculators run independently — change the inputs on either side to compare results.
Thermodynamics
Heat Transfer Rate Calculator
Calculate the steady-state rate of heat conduction through a flat material using Fourier's Law. Useful for sizing insulation, designing walls, and analyzing thermal resistance in building and mechanical engineering.
Fill in the required fields to see your result.
Thermodynamics
Heat Exchanger LMTD Calculator
Calculates the Log Mean Temperature Difference (LMTD) for counter-flow or parallel-flow heat exchangers, then uses it to find the required heat transfer area or rate. Used in the design and rating of industrial heat exchangers.
Fill in the required fields to see your result.
Key differences
| Heat Transfer Rate Calculator | Heat Exchanger LMTD Calculator | |
|---|---|---|
| Category | Thermodynamics | Thermodynamics |
| Inputs required | 4 | 5 |
| Result | Heat Transfer Rate (W) | Log Mean Temperature Difference (°C) |
| What it does | Calculate the steady-state rate of heat conduction through a flat material using Fourier's Law. Useful for sizing insulation, designing walls, and analyzing thermal resistance in building and mechanical engineering. | Calculates the Log Mean Temperature Difference (LMTD) for counter-flow or parallel-flow heat exchangers, then uses it to find the required heat transfer area or rate. Used in the design and rating of industrial heat exchangers. |