Design the right heat sink for your application

HeatSinkCalculator is the perfect tool for engineers and designers who want to quickly and easily analyze a heat sink

Get to your final design faster

Iterate though multiple heat sink design analyses in a few minutes to find the best design for your application and avoid building multiple costly prototypes

Effortlessly find your optimum design

No need to guess what heat sink dimensions produce the lowest temperature design. The calculator will automatically determine them for you

You don't need to be a thermal expert

Simple and straight forward inputs make it easy to enter your heat sink dimensions, heat source values and flow conditions, and immediately get results

See how easy it is to analyze your heat sink


Be more efficient with an intuitive interface design

Get your component temperatures in three straightforward steps:
1. Enter heat sink dimensions
2. Select the modes of heat transfer
3. Specify the locations and power of heat sources

Quickly determine the best cooling method for your design

Analyze natural convection cooled heat sinks in multiple orientations for your application. Include radiation and specify the surface emissivity for further accuracy.
Are you using a fan for high power components? Evaluate the fan cooled heat sink's performance by entering the fan curve data points.

Natural convection


Forced convection

Focus on what matters with clear and concise results

Heat source temperatures are clearly tabulated in order of highest temperature for a distraction free review. The heat sink base temperature contour plot allows you to evaluate alternative locations for your heat sources to obtain the lowest temperature.

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