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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.

Thermal Conductivity (W/m·K)

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 Transfer Rate Calculator	Heat Conduction Calculator
Category	Thermodynamics	Thermodynamics
Inputs required	4	5
Result	Heat Transfer Rate (W)	Heat Transfer Rate (W)
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.	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.