Thermal PCB Resistance
Calculate Thermal PCB Resistance instantly with the exact formula and a worked example.
Thermal PCB Resistance
Copper lengthmm
Copper widthmm
Copper thicknessoz
Board thicknessmm
Dissipated powerW
Thermal resistance along copper
37.1058°C/W
Temperature rise at given power
37.1°C
Copper thickness
70µm
Through FR-4 under this area
53.3°C/W
More about: Thermal PCB Resistance
What it calculates
The “Thermal PCB Resistance” calculator computes Thermal resistance along copper in °C/W from 5 parameters: copper length (mm), copper width (mm), copper thickness (oz), board thickness (mm), dissipated power (W).
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters Copper length = 10 mm, Copper width = 10 mm, Copper thickness = 2 oz, Board thickness = 1.6 mm, Dissipated power = 1 W the result is 37.11 °C/W.
How to use
- Enter copper length, copper width, copper thickness, board thickness and dissipated power — each field above is adjustable with a slider.
- Thermal resistance along copper (°C/W) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Thermal PCB Resistance calculated?
The Thermal PCB Resistance calculator computes Thermal resistance along copper (in °C/W) from copper length, copper width, copper thickness, board thickness, dissipated power. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Thermal PCB Resistance calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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