Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Heat Conduction Calculator

Calculates the steady-state heat transfer rate through a flat material slab using Fourier's law. Useful for sizing insulation, evaluating wall assemblies, or designing heat sinks.

Thermal Conductivity (W/(m·K))

Cross-sectional Area (m²)

Temperature Difference (K)

Material Thickness (m)

Fill in the required fields to see your result.

Thermodynamics

Heat Conduction Calculator

Calculate the steady-state heat transfer rate through a flat wall, cylindrical pipe, or spherical shell using Fourier's law. Used by engineers sizing insulation, heat exchangers, and building envelopes.

Thermal Conductivity (W/(m·K))

Temperature Difference (K)

Wall Thickness / Length (m)

Heat Transfer Area (m²)

Geometry Type

Fill in the required fields to see your result.

Key differences

	Heat Conduction Calculator	Heat Conduction Calculator
Category	Thermodynamics	Thermodynamics
Inputs required	4	5
Result	Heat Transfer Rate (W)	Heat Transfer Rate (W)
What it does	Calculates the steady-state heat transfer rate through a flat material slab using Fourier's law. Useful for sizing insulation, evaluating wall assemblies, or designing heat sinks.	Calculate the steady-state heat transfer rate through a flat wall, cylindrical pipe, or spherical shell using Fourier's law. Used by engineers sizing insulation, heat exchangers, and building envelopes.