Free Thermal Conductivity Calculator
Calculate heat flow rate through a material using Fourier's law: Q/t = k * A * DeltaT / d.
W/(m·K)
m²
°C
m
Heat Flow Rate
80.00 W
Heat Flow Rate vs Thermal Conductivity (k)
Thermal Conductivity (Fourier's Law)
Fourier's law describes the rate of heat conduction through a material.
Formula
Q/t = k * A * DeltaT / d
where k is thermal conductivity, A is area, DeltaT is temperature difference, and d is thickness. Lower k means better insulation.
Example Calculation
Heat loss through a 10 m² wall, 10 cm fiberglass insulation (k=0.04), 20°C temperature difference.
- 01Q/t = k * A * DeltaT / d
- 02Q/t = 0.04 * 10 * 20 / 0.1
- 03Q/t = 8 / 0.1
- 04Q/t = 80 W
Frequently Asked Questions
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