Heat Flow Calculation: Online Thermal Transfer Rate Calculator

Calculate Heat Flow Rate (Q)

Please enter a valid thermal conductivity.
Please enter a valid area.
Please enter a valid temperature difference.
Please enter a valid thickness.

Results

Calculated Heat Flow Rate (Q): Watts

Utilize our free Heat Flow Calculator to swiftly determine the rate of thermal energy transfer through various materials. This essential tool applies Fourier's Law of Conduction, aiding engineers, students, and DIY enthusiasts in understanding heat loss or gain in systems like buildings, electronics, or industrial processes. Input thermal conductivity, area, temperature difference, and material thickness for instant results, ensuring efficient thermal design and analysis.

Formula:

The heat flow rate (Q) through a material is calculated using Fourier's Law of Conduction:
Q = (k * A * ΔT) / L
Where:

  • Q = Heat Flow Rate (Watts)
  • k = Thermal Conductivity (W/(m·K) or W/(m·°C))
  • A = Cross-sectional Area (m²)
  • ΔT = Temperature Difference (°C or K)
  • L = Thickness of the material (m)

Physics and Engineering Tools

Cable Length from Sag and Span

Go to Calculator

Cyclone : Estimate Dust Collector Pressure Drop

Go to Calculator

Helical Spring Index

Go to Calculator