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PHYSICS / THERMAL PHYSICS

Thermal Conduction Calculator

Calculate steady one-dimensional conduction rate through a uniform slab. Inspect the governing equation, substituted SI values, output, and model boundaries in one guided workspace.

  • 01 Calculated in this tab
  • 02 Values stay in this browser tab
  • 03 Use boundary

Conversion input

Known value

Filter by unit name, symbol, or code. Your current selections remain available.

Preparing the calculator...

Use boundary

Calculation path

Calculate steady one-dimensional conduction rate through a uniform slab. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.

Calculation path

Q_dot = kA Delta T/L

What you provide

What you provide

  • Thermal conductivity expressed in W/(m K), using the same scenario as the other inputs
  • Conduction area expressed in m^2, using the same scenario as the other inputs
  • Temperature difference expressed in K, using the same scenario as the other inputs
  • Material thickness expressed in m, using the same scenario as the other inputs

What you receive

What you receive

  • Heat-transfer rate in W from the stated equation
  • A symbolic formula plus substituted working with your values
  • Visible assumptions, field guidance, and an authoritative learning reference

Use boundary

Choose the maximum decimal places shown. This does not increase source accuracy.

Heat flow is steady and one-dimensional with constant conductivity and no contact resistance.

Use internally consistent units and retain extra precision when carrying the result into another calculation.

Reviewed reference factors

Reviewed reference factors